Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed)
Electric Power Supplies
Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)
Biological Science Disciplines
All of the divisions of the natural sciences dealing with the various aspects of the phenomena of life and vital processes. The concept includes anatomy and physiology, biochemistry and biophysics, and the biology of animals, plants, and microorganisms. It should be differentiated from BIOLOGY, one of its subdivisions, concerned specifically with the origin and life processes of living organisms.
A copper-containing oxidoreductase enzyme that catalyzes the oxidation of 4-benzenediol to 4-benzosemiquinone. It also has activity towards a variety of O-quinols and P-quinols. It primarily found in FUNGI and is involved in LIGNIN degradation, pigment biosynthesis and detoxification of lignin-derived products.
A dark powdery deposit of unburned fuel residues, composed mainly of amorphous CARBON and some HYDROCARBONS, that accumulates in chimneys, automobile mufflers and other surfaces exposed to smoke. It is the product of incomplete combustion of carbon-rich organic fuels in low oxygen conditions. It is sometimes called lampblack or carbon black and is used in INK, in rubber tires, and to prepare CARBON NANOTUBES.
Platinum. A heavy, soft, whitish metal, resembling tin, atomic number 78, atomic weight 195.09, symbol Pt. (From Dorland, 28th ed) It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as "alutiae".
A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.
Directories as Topic
"Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for Occupational Safety and Health. April ... including nanomaterials such as carbon nanotubes. Pharyngeal aspiration has benefits over the alternative methods of inhalation ...
"Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for Occupational Safety and Health. April ...
Rebecca Chan Chung
Carbon Composites: Composites with Carbon Fibers, Nanofibers, and Nanotubes. Butterworth-Heinemann. p. 5. ISBN 978-0-12-802880- ...
In 2018, a functional dry electrode composed of a polydimethylsiloxane elastomer filled with conductive carbon nanofibers was ... "Carbon nanofiber-filled conductive silicone elastomers as soft, dry bioelectronic interfaces". PLOS ONE. 13 (2): e0189415. ...
Carbon nanofibers can be added to concrete to enhance compressive strength and gain a higher Young's modulus, and also to ... Mullapudi, Taraka Ravi Shankar; Gao, Di; Ayoub, Ashraf (1 September 2013). "Non-destructive evaluation of carbon nanofibre ... Carbon fiber has many advantages in terms of mechanical and electrical properties (e.g., higher strength) and self-monitoring ... Carbon products have been added to make concrete electrically conductive, for deicing purposes. Concrete production is the ...
Health and safety hazards of 3D printing
Based on animal studies, carbon nanotubes and carbon nanofibers sometimes used in fused filament printing can cause pulmonary ... such as carbon nanofiber and carbon nanotubes, have established occupational exposure limits at the nanoparticle size. As of ... "Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ... "Occupational Exposure Assessment in Carbon Nanotube and Nanofiber Primary and Secondary Manufacturers". The Annals of ...
Animal studies indicate that carbon nanotubes and carbon nanofibers can cause pulmonary effects including inflammation, ... "Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ... Typical nanoparticles that have been studied are titanium dioxide, alumina, zinc oxide, carbon black, carbon nanotubes, and ... ROS production has been found in a diverse range of nanomaterials including carbon fullerenes, carbon nanotubes and ...
"Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ... and ultrafine carbon black. Some studies in cells or animals have shown genotoxic or carcinogenic effects, or systemic ... and an aerosol of carbon nanoparticles containing technetium-99m are used in a commercially available procedure for ventilation ...
Characterization of nanoparticles
... of 1.0 μg/m3 for carbon nanotubes and carbon nanofibers as background-corrected elemental carbon as an 8-hour time-weighted ... "Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ... elemental carbon content (relevant for carbon-based nanoparticles), and elemental analysis for several metals. Occupational ...
Animal studies indicate that carbon nanotubes and carbon nanofibers can cause pulmonary effects including inflammation, ... "Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ... A nanofiber has two external dimensions in the nanoscale, with nanotubes being hollow nanofibers and nanorods being solid ... carbon nanofibers, and ultrafine titanium dioxide. Agencies and organizations from other countries, including the British ...
Health and safety hazards of nanomaterials
... of 1.0 μg/m3 for carbon nanotubes and carbon nanofibers as background-corrected elemental carbon as an 8-hour time-weighted ... Animal studies indicate that carbon nanotubes and carbon nanofibers can cause pulmonary effects including inflammation, ... and in 2013 NIOSH concluded that the toxicologic evidence on carbon nanotubes and carbon nanofibers had advanced enough to make ... "Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ...
"A Glucose Biosensor Using CMOS Potentiostat and Vertically Aligned Carbon Nanofibers". IEEE Transactions on Biomedical Circuits ...
Workplace health surveillance
"Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ...
"Friction of partially embedded vertically aligned carbon nanofibers inside elastomers" (PDF). Applied Physics Letters. 91 (6): ... Nanofibers provide a possible solution to this challenge. Nanofibers allow for great adhesion on a small scale and allow for ...
Gan, Yong X.; Gan, Jeremy B. (June 2020). "Advances in Manufacturing Composite Carbon Nanofiber-Based Aerogels". Journal of ... then onto liquid carbon dioxide and then bringing the carbon dioxide above its critical point. A variant on this process ... leaving a matrix of carbon. The resulting carbon aerogel may be used to produce solid shapes, powders, or composite paper. ... Carbon aerogels were first developed in the late 1980s. Despite the name, aerogels are solid, rigid, and dry materials that do ...
"Non-destructive evaluation of carbon nanofibre concrete". Magazine of Concrete Research. 65 (18): 1081-1091. doi:10.1680/macr. ... Carbon nanofibres can be added to concrete to enhance compressive strength and gain a higher Young's modulus, and also to ... Carbon fiber has many advantages in terms of mechanical and electrical properties (e.g. higher strength ) and self-monitoring ... Carbon products have been added to make concrete electrically conductive, for deicing purposes. ...
Vieira, R.; C. Pham-Huu; N. Keller; M. J. Ledoux (2002). "New carbon nanofiber/graphite felt composite for use as a catalyst ... Nitrogen does not share the proclivity of carbon for catenation. Like carbon, nitrogen tends to form ionic or metallic ... Like carbon tetrafluoride, it is not at all reactive and is stable in water or dilute aqueous acids or alkalis. Only when ... Many organic functional groups involve a carbon-nitrogen bond, such as amides (RCONR2), amines (R3N), imines (RC(=NR)R), imides ...
A carbon coating provides the missing electroconductivity. Carbon nanofibers provide an effective electron conduction path and ... Silicon nanowire/carbon. Sulfur-coated, disordered carbon nanotubes made from carbohydrates. 2013. CGS. 1,300 mA⋅h/g ... Guangyuan, Zheng; Yuan Yang; Judy J. Cha; Seung Sae Hong; Yi Cui (14 September 2011). "Hollow Carbon Nanofiber-Encapsulated ... This process reduces the contact between the carbon and the sulfur, and prevents the flow of lithium ions to the carbon surface ...
... cells analysis of trace metals in cows synthesis of carbon nanofibers Figure 2 shows DCP being used to grow carbon nanofibers. ... "Vertically aligned carbon nanofibers and related structures: Controlled synthesis and directed assembly". Journal of Applied ...
"Analysis of PVC Foam and Carbon Nanofiber Syntactic Foam" (PDF). NYU School of Engineering. July 2010. Retrieved November 6, ... Poveda, R., & Gupta, N. (n.d.). Carbon Nanofiber Reinforced Polymer Composites (1st ed., p. 99). Springer International ...
"Carbon Nanofiber versus Graphene‐Based Stretchable Capacitive Touch Sensors for Artificial Electronic Skin". Advanced Science. ... Several stretchable energy storage devices and supercapacitors are made using carbon-based materials such as single-walled ... carbon nanotubes (SWCNTs). A study by Li et al. showed a stretchable supercapacitor (composed of buckled SWCNTs macrofilm and ...
Surrounding the metal oxide particles with carbon nanofibers may make nanothermites safer to handle. Thermate Pyrotechnic ...
The structure can be used as a bio-template to make hollow carbon nanofibers. The desired battery materials, often sulfur and ...
"All-carbon-nanofiber electrodes for high-energy rechargeable Li-O2 batteries". Energy & Environmental Science. 4 (8): 2952-2958 ... This is typically two oxygen atoms per carbon atom, and one per two hydrogen atoms. The atomic weight of carbon and oxygen are ... "AISI 1018 Mild/Low Carbon Steel". AZoM.com. 2012-06-28. Retrieved 2020-01-22. "ASM Material Data Sheet". asm.matweb.com. ...
Slipher, Geoffrey A.; Hairston, W. David; Bradford, J. Cortney; Bain, Erich D.; Mrozek, Randy A. (2018). "Carbon nanofiber- ... In 2018, a functional dry electrode composed of a polydimethylsiloxane elastomer filled with conductive carbon nanofibers was ...
Slipher GA, Hairston WD, Bradford JC, Bain ED, Mrozek RA (2018-02-06). "Carbon nanofiber-filled conductive silicone elastomers ...
Wind turbine design
Further improvement is possible through the use of carbon nanofibers (CNFs) in the blade coatings. A major problem in desert ... Carbon fibre-reinforced load-bearing spars can reduce weight and increase stiffness. Using carbon fibres in 60-metre turbine ... Replacing this with conductive carbon fiber, especially as carbon fiber is a better material, would be ideal. Another recent ... "Enhancing particle erosion resistance of glass-reinforced polymeric composites using carbon nanofiber-based nano paper coatings ...
Society for the Advancement of Material and Process Engineering
CS1 maint: discouraged parameter (link) "Carbon Nanofibre Bridge "Lights Up" SAMPE Conference". NetComposites. 04/06/2004. ...
2007). "Vertically Aligned Carbon Nanofiber Arrays Record Electrophysiological Signals from Hippocampal Slices". Nano Lett. 7 ( ... 2007). "Electro-chemical and biological properties of carbon nanotube based multi-electrode arrays". Nanotechnology. 18 (3): ... for example by using carbon nanotubes, or by modification of the structure of the electrodes, with for example gold nanopillars ...
Hollow TiO2 nanofibers can be also prepared by coating carbon nanofibers by first applying titanium butoxide. Titanium dioxide ... This carbon-doped titanium dioxide is highly efficient; under artificial visible light, it breaks down chlorophenol five times ... "Carbon-doped titanium dioxide is an effective photocatalyst". Advanced Ceramics Report. 1 December 2003. Archived from the ... The efficiency of this process can be greatly improved by doping the oxide with carbon. Further efficiency and durability has ...
Гольберг, Дмитрий Викторович - Википедия
J. Q. Hu, Y. Bando, J. H. Zhan, C. Y. Zhi, F. F. Xu and D. Golberg : «Tapered Carbon Nanotubes from Activated Carbon Powders» ... Ma RZ, Y. Bando, S. Tadao, G. Dmitri : «Synthesis of boron nitride nanofibers and measurement of their hydrogen uptake capacity ... 10.1016/j.carbon.2004.05.047. *C TANG, Y BANDO and D GOLBERG : «Multi-walled BN nanotubes synthesized by carbon-free method» J ... The electrical delivery of a sublimable II-VI compound by vapor transport in carbon nanotubes» Carbon 49 (2011) 3747-3754 DOI: ...
Carbon fiber - Simple English Wikipedia, the free encyclopedia
Zhao, Z. and Gou, J. (2009). "Improved fire retardancy of thermoset composites modified with carbon nanofibers". Sci. Technol. ... Carbon fiber (British English: carbon fibre) is a type of fiber that is made of carbon atoms. It is also sometimes called ... particularly carbon fiber reinforced polymers. Reinforced carbon-carbon (RCC) is used structurally in high-temperature ... The density of carbon fiber is also much lower than the density of steel. Carbon fiber is in the form of several thousand ...
Carbon fiber reinforced polymer
"Improved fire retardancy of thermoset composites modified with carbon nanofibers". Sci. Technol. Adv. Mater. 10 (1): 015005. ... or carbon fiber reinforced thermoplastic (CFRP, CRP, CFRTP, or often simply carbon fiber, carbon composite, or even carbon), is ... Carbon-fiber microelectrodesEdit. Carbon fibers are used for fabrication of carbon-fiber microelectrodes. In this application ... In 2009, Zyvex Technologies introduced carbon nanotube-reinforced epoxy and carbon pre-pregs. Carbon nanotube reinforced ...
Bio-hybrid polymer nanofibers. Many technical applications of biological objects like proteins, viruses or bacteria such ... Carbon nanotubes, gold particles and synthetic polymers are used for this purpose. This immobilization has been achieved ... The most common type of filler particles utilized by the tire industry had traditionally been Carbon black (Cb), produced from ... Nanoparticles such as graphene, carbon nanotubes, molybdenum disulfide and tungsten disulfide are being used as reinforcing ...
Tubular virus particles such as the tobacco mosaic virus (TMV) can be used as templates to create nanofibers and nanotubes, ... and the helicoidal structures of stomatopod clubs in the fabrication of high performance carbon fiber-epoxy composites. ... which is claimed to have a low carbon impact (compared to aerosol sprays). The beetle mixes chemicals and releases its spray ...
O'Neil, Glen D.; Buiculescu, Raluca; Kounaves, Samuel P.; Chaniotakis, Nikos A. (2011). "Carbon-Nanofiber-Based Nanocomposite ...
... carbon nanotubes, carbon nanobuds and nanofibers. Several other exotic allotropes have also been discovered, ... Carbon can form very long chains of interconnecting carbon-carbon bonds, a property that is called catenation. Carbon-carbon ... The paths of carbon in the environment form the carbon cycle. For example, photosynthetic plants draw carbon dioxide from the ... Main article: Allotropes of carbon. Atomic carbon is a very short-lived species and, therefore, carbon is stabilized in various ...
Hollow TiO2 nanofibers can be also prepared by coating carbon nanofibers by first applying titanium(IV) butoxide. ... "Carbon-doped titanium dioxide is an effective photocatalyst". Advanced Ceramics Report. 1 December 2003. Archived from the ... This carbon-doped titanium dioxide is highly efficient; under artificial visible light, it breaks down chlorophenol five times ... The efficiency of this process can be greatly improved by doping the oxide with carbon. Further efficiency and durability ...
Tarakanov, A. O.; Goncharova, L. B.; Tarakanov Y. A. (2009). "Carbon nanotubes towards medicinal biochips". Wiley ... Yarin, A. L. (2010). "Nanofibers, nanofluidics, nanoparticles and nanobots for drug and protein delivery systems". Scientia ...
"Improved fire retardancy of thermoset composites modified with carbon nanofibers". Sci. Technol. Adv. Mater. 10 (1): 015005. ... Carbon filament yarns can also be knitted or braided. Microelectrodes. Carbon fibers are used for fabrication of carbon- ... The carbon can become further enhanced, as high modulus, or high strength carbon, by heat treatment processes. Carbon heated in ... Carbon fibers are also composited with other materials, such as graphite, to form reinforced carbon-carbon composites, which ...
Carbon fiber reinforced composites, for instance, have been used in such diverse applications as spacecraft and fishing rods. ... "Development of Low Pressure Filter Testing Vessel and Analysis of Electrospun Nanofiber Membranes for Water Treatment" ...
Potential applications of carbon nanotubes
"Improved fire retardancy of thermoset composites modified with carbon nanofibers". Science and Technology of Advanced Materials ... "Ignition of carbon nanotubes using a photoflash". Carbon. 45 (5): 958-964. doi:10.1016/j.carbon.2006.12.033.. ... "Potential routes to stronger carbon nanotube fibres via carbon ion irradiation and deposition". Carbon. 96: 1138-1156. doi: ... A Comparative Study on Granular Activated Carbon, Activated Carbon Fiber, and Carbon Nanotubes". Environmental Science and ...
ಇಂಗಾಲದ ನ್ಯಾನೊಟ್ಯೂಬ್ - ವಿಕಿಪೀಡಿಯ
doi:10.1016/j.carbon.2004.05.010.. *↑ Sen, S.; Puri, Ishwar K (2004). "Flame synthesis of carbon nanofibers and nanofibers ... 2008). "Small molecule delivery using carbon nano-test-tubes". Carbon. 46: 1358-1367. doi:10.1016/j.carbon.2008.05.013.. ... Abrahamson, John; Wiles, Peter G.; Rhoades, Brian L. (1999). "Structure of Carbon Fibers Found on Carbon Arc Anodes". Carbon. ... "Carbon Formation from Carbon Monoxide-Hydrogen Mixtures over Iron Catalysts. I. Properties of Carbon Formed". J. Phys. Chem. 63 ...
... or LiFePO4 and a conductive additive such as carbon black or carbon nanofibers. This slurry is cast onto a metallic current ... PVDF's carbon and fluoride elemental stability contributes to this resistance, as well as the polymeric integration of PVDF ... PVDF is also used as a binder component for the carbon electrode in supercapacitors and for other electrochemical applications ... "Polyvinylidene fluoride molecules in nanofibers, imaged at atomic scale by aberration corrected electron microscopy" ...
In addition, polyvinylidene fluoride (PVDF) nanofiber webs can be synthesized as a separator to improve both ion conductivity ... Dual n- and p-Type Dopable Electrochromic Devices Employing Transparent Carbon Nanotube Electrodes Chemistry of Materials 2009 ... "Electrospun PVDF nanofiber web as polymer electrolyte or separator" Electrochimica Acta 50 2004 339-343 Feng, J.K., Ai, X.P, ... "Electrospun PVDF nanofiber web as polymer electrolyte or separator" Electrochimica Acta 50 (2004) 339-343 (Licari, J. J., and B ...
Animal studies indicate that carbon nanotubes and carbon nanofibers can cause pulmonary effects including inflammation, ... A nanofiber has two external dimensions in the nanoscale, with nanotubes being hollow nanofibers and nanorods being solid ... "Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofibers". U.S. National Institute for ... carbon nanofibers, and ultrafine titanium dioxide. Agencies and organizations from other countries, including the ...
نیتروژن - ویکیپدیا، دانشنامهٔ آزاد
Vieira, R.; C. Pham-Huu; N. Keller; M. J. Ledoux (2002). "New carbon nanofiber/graphite felt composite for use as a catalyst ... Like carbon tetrafluoride, it is not at all reactive and is stable in water or dilute aqueous acids or alkalis. Only when ... Many organic functional groups involve a carbon-nitrogen bond, such as amides (RCONR2), amines (R3N), imines (RC(=NR)R), imides ... Since N2 is isoelectronic with carbon monoxide (CO) and acetylene (C2H2), the bonding in dinitrogen complexes is closely allied ...
The most important solubilizing agent is carbon disulfide in the presence of alkali. Other agents include Schweizer's reagent, ... Saito, Tsuguyuki; Kimura, Satoshi; Nishiyama, Yoshiharu; Isogai, Akira (August 2007). "Cellulose Nanofibers Prepared by TEMPO- ... In 1891, it was discovered that treatment of cellulose with alkali and carbon disulfide generated a soluble cellulose ... and gases such as carbon dioxide. Maximum yield of vapors which condense to a liquid called bio-oil is obtained at 500 °C. Semi ...
Outline of nanotechnology
Allotropes of carbon - Aggregated diamond nanorods - Buckypaper - Carbon nanofoam - Carbon nanotube - Nanoknot - Nanotube ... Nanofiber - Nanofoam - Nanoknot - Nanomesh - Nanopillar - Nanopin film - Nanoring - Nanorod - Nanoshell - Nanotube - Quantum ... Carbon Nanotubes (Luxembourg) Phaedon Avouris - first electronic devices made out of carbon nanotubes Gerd Binnig - co-inventor ... Discoverer of 2-D carbon film called graphene Sumio Iijima - discoverer of carbon nanotube Harry Kroto - co-discoverer of ...
Research in lithium-ion batteries
Besides graphite poorly or non-electrochemically active types of carbon are used in cells such as CNTs, carbon black, graphene ... The nanofibers were created by applying a high voltage between a rotating drum and a nozzle emitting a solution of tetraethyl ... The nanofibers contain 10 nm diameter nanopores on their surface. Along with additional gaps in the fiber network, these allow ... Another approached used carbon nanotube fiber yarns. The 1 mm diameter fibers were claimed to be lightweight enough to create ...
Potential applications of graphene
Carbon. 48 (6): 1815-23. doi:10.1016/j.carbon.2010.01.027. Wang, Yu; Chen, Xiaohong; Zhong, Yulin; Zhu, Furong; Loh, Kian Ping ... core/sheath nanofiber mats". Colloids and Surfaces B: Biointerfaces. 146: 63-69. doi:10.1016/j.colsurfb.2016.05.052. ISSN 0927- ... Carbon. 54: 396-402. doi:10.1016/j.carbon.2012.11.054. Li, Xiaoqiang; Chen, Wenchao; Zhang, Shengjiao; Wu, Zhiqian; Wang, Peng ... doi:10.1016/j.carbon.2009.06.047. Liang, Qizhen; Yao, Xuxia; Wang, Wei; Liu, Yan; Wong, Ching Ping (2011). "A Three-Dimensional ...
... often cited as one of the pioneers of carbon nanofibers and carbon nanotubes synthesis at the beginning of the 1970s. He ... Carbon Society of Japan award（The Carbon Society of Japan） 2001, Charles E. Pettinos Award（American Carbon Society） 2003, ... Carbon Science and Applications of Novel Carbon Materials Including Nanocarbons. 1974-1975, CNRS, France (Visiting Research ... The Carbon Society of Japan (chairman) 2005-2012, Institute of Carbon Science & Technology, Shinshu University (Head) 2012- , ...
Morinobu Endo (遠藤 守信), a physicist and chemist, pioneers of carbon nanofibers and carbon nanotubes synthesis. Koji Nakanishi (中 ... Sumio Iijima (飯島 澄男), a physicist, inventor of carbon nanotubes. Akira Tonomura (外村 彰), a physicist, for his development of ...
Occupational Exposure to Carbon Nanotubes & Nanofibers | NIOSH | CDC
... and carbon nanofibers (CNF) may pose a respiratory hazard ... Results from recent animal studies indicate that carbon ... Results from recent animal studies indicate that carbon nanotubes (CNT) and carbon nanofibers (CNF) may pose a respiratory ... There is no single type of carbon nanotube or nanofiber; one type can differ from another in shape, size, chemical composition ... Current Intelligence Bulletin 65: Occupational Exposure to Carbon Nanotubes and Nanofiberspdf icon [PDF - 3.41 MB] ...
Carbon Nanofibers Cut Flammability of Upholstered Furniture | NIST
Carbon, the active ingredient in charcoal, is normally not considered a fire retardant, but researchers at the National ... The foam with carbon nanofibers did not drip.. "These small-scale experiments correlate well with the fire behavior of larger ... "The carbon nanofibers help prevent the foam from dripping in a pool under the furniture and increasing the fire intensity," ... Researchers added carbon nanofibers to the foam because they knew that adding nanoparticles to a polymer normally increases the ...
Electrospun Carbon nanofibers-Based Supercapacitors
... here we present a hierarchical ternary nanocomposite film composed of carbon nanofibers (CNFs)/surface grafted with carbon ... here we present a hierarchical ternary nanocomposite film composed of carbon nanofibers (CNFs)/surface grafted with carbon ... Electrospun Carbon nanofibers-Based Supercapacitors. Authors: Z.P. Zhou. Affilation: North Dakota State University, United ... Keywords: electrospinning, polyacrylonitrile, carbon nanofibers, polyaniline, supercapacitor. Abstract:. For efficient use of ...
Carbon nanofiber - Wikipedia
Carbon nanofibers (CNFs), vapor grown carbon fibers (VGCFs), or vapor grown carbon nanofibers (VGCNFs) are cylindrical ... Allotropes of carbon Carbon nanotubes Carbon black Carbon nanocone Carbon fiber Impalefection, a method of cell transfection ... Carbon nanofibers with graphene layers wrapped into perfect cylinders are called carbon nanotubes. Carbon has a high level of ... "Carbon nanofibers for composite applications". Carbon. 42 (5-6): 1153-8. doi:10.1016/j.carbon.2003.12.043. Burchell, T.D. (1999 ...
Researchers grow carbon nanofibers using ambient air, without toxic ammonia | NSF - National Science Foundation
Effects of Carbon Nanofibers and Carboxyl Functionalized Multi-Wa...: Ingenta Connect
Effects of Carbon Nanofibers and Carboxyl Functionalized Multi-Walled Carbon Nanotubes on Mechanical Damping Behavior of Cement ... Different ratios of carbon nanofibers (CNF) and carboxyl functionalized multi-walled carbon nanotubes (CMWCNT), dispersed by ... Both total porosity and mesoporosity decreased due to the nano-filler effect from the carbon nanofilaments. The SEM technique ...
Dispersion of High Concentrations of Carbon Nanofibers in Portland Cement Mortars
P. Hvizdoš, V. Puchý, A. Duszová, and J. Dusza, "Carbon nanofibers reinforced ceramic matrix composites," in Nanofibers- ... D. Gao, M. Sturm, and Y. L. Mo, "Electrical resistance of carbon-nanofiber concrete," Smart Materials and Structures, vol. 20, ... N. Yazdani and V. Mohanam, "Carbon nano-tube and nano-fiber in cement mortar: effect of dosage rate and water-cement ratio," ... Y. L. M. Di Gao and L. M. Pend, "Mechanical and electrical properties of carbon-nanofiber self-consolidating concrete," in ...
Stainless Steel Mesh Supported Carbon Nanofibers for Electrode in Bioelectrochemical System
This design was realized by direct growth of carbon nanofibers (CNFs) onto stainless steel (SSM) via a chemical vapor ... We proposed a self-connected carbon nanofiber design for electrode in microbial bioelectrochemical system. ... which was likely to be the catalytic sites for the carbon nanofibers growth. The curved carbon nanofiber formed a macroporous ... carbon cloth, carbon felt, carbon paper, reticulated vitrified carbon, and graphite brush, which had been summarized in . ...
Public Comments | Occupational Exposure to Carbon Nanotubes and Nanofibers
... been no report in the literature of human health effects in workers or others exposed to carbon nanotubes or carbon nanofibers. ... Occupational Exposure to Carbon Nanotubes and Nanofibers ) provides some initial guidance to the potential health risks for ... ACOEM Comments on Occupational Exposure to Carbon Nanotubes and Nanofibers The NIOSH Current Intelligence Bulletin (" ... been no report in the literature of human health effects in workers or others exposed to carbon nanotubes or carbon nanofibers ...
Abstract] Analysis of Carbon Nanofibers and Porous Silicon for Neural Applications
Analysis of Carbon Nanofibers and Porous Silicon for Neural Applications. J.L. McKenzie, R. Shi, N.M. Kalkhoran, M.A. Sambito, ... Carbon nanofibers, porous silicon, astrocytes. Abstract. Chronic neural implants are usually made from silicon materials and ... Carbon nanofibers are an example of a material that may improve neural implant interactions with native cell populations since ... The objective of the present in vitro study was to determine cytocompatibility properties of carbon nanofibers and porous ...
Carbon Nanofibers Containing Ag/TiO2 Composites as a Preliminary Stage for CDI Technology
... nanofibers and converted into carbon nanofibers by stabilization and calcination was obtained and tested for capacitive ... showed silver/TiO2 nanoparticles dispersed on the surface of the carbon nanofibers. The obtained fiber was fully characterized ... Scanning electron microscopy (SEM) revealed that the diameter of the nanofibers ranged between 50 and 300 nm. Transmission ... thus obtaining PAN nanofibers containing silver/TiO2 nanoparticles. ...
Growth of SnO2 Nanoflowers on N-doped Carbon Nanofibers as Anode for Li- and Na-ion Batteries | SpringerLink
M. Dirican, Y. Lu, Y. Ge, O. Yildiz, X. Zhang, Carbon-confined SnO2-electrodeposited porous carbon nanofiber composite as high- ... N-doped carbon nanofiber accelerates the migration of Li+/Na+ ions and guides the growth of the SnO2 nanoflowers. ... W. Lei, L. Han, C. Xuan, R. Lin, H. Liu, H.L. Xin, D. Wang, Nitrogen-doped carbon nanofibers derived from polypyrrole coated ... Nevertheless, the peak of carbon for the [email protected] is not clearly observed. It is possible that the NC nanofibers were completely ...
Sensors | Free Full-Text | Laccase Biosensor Based on Electrospun Copper/Carbon Composite Nanofibers for Catechol Detection
... and copper/carbon composite nanofibers (Cu/CNFs). The two kinds of nanofibers were prepared by electrospinning and ... The amperometric results indicated that the Cu/CNFs/laccase(Lac)/Nafion/glass carbon electrode (GCE) possessed reliable ... The study compared the biosensing properties of laccase biosensors based on carbon nanofibers (CNFs) ... The study compared the biosensing properties of laccase biosensors based on carbon nanofibers (CNFs) and copper/carbon ...
Single and bundled carbon nanofibers as ultralightweight and flexible piezoresistive sensors - Research database - University...
Airbrushing could facilitate large-scale manufacture of carbon nanofibers
... opening the door for incorporating these nanofibers into gene ... ... used airbrushing techniques to grow vertically aligned carbon ... Study finds more efficient means of creating, arranging carbon nanofibers. March 17, 2011 Carbon nanofibers hold promise for ... In the reactor, carbon nanofibers formed under the nickel nanoparticles and were held upright by a silicon-enriched coating. ... "Growing carbon nanofibers on a metal substrate means the interface between the two materials is highly conductive, which makes ...
Hard carbon nanofiber aerogel becomes superelastic
In recent decades, carbon aerogels have been widely explored by using graphitic carbons and soft carbons, which show advantages ... Up to now, it has been a challenge to fabricate superelastic hard carbon-based aerogels. ... Conductive and compressible carbon aerogels are useful in a variety of applications. ... Due to the hard carbon nanofibers and abundant welded joints among the nanofibers, the hard carbon aerogels display robust and ...
Mining the Air: Turning Carbon Dioxide Into Nanofiber Building Materials | HowStuffWorks
Could we mine the air to create carbon nanofiber building materials while reducing emissions? Learn more in this HowStuffWorks ... carbon nanofiber market is analogous to the pre-World War II market for plastics, Licht argues. When carbon nanofiber costs ... Could carbon dioxide pulled from the air be turned into carbon nanofibers used in construction? The possibilities are promising ... Researchers are generating carbon nanofibers (above) from carbon dioxide, removing a greenhouse gas from the air to make ...
Carbon Nanofibers Grafted on Activated Carbon as an Electrode in High-Power Supercapacitors - Gryglewicz - 2013 - ChemSusChem -...
Carbon Nanofibers Grafted on Activated Carbon as an Electrode in High-Power Supercapacitors. Authors. *. Prof. Grażyna ... Influence of wet oxidation of herringbone carbon nanofibers on the pseudocapacitance effect, Carbon, 2013, 64, 324. CrossRef ... Wu-Jun Liu, Ke Tian, Yan-Rong He, Hong Jiang, Han-Qing Yu, High-Yield Harvest of Nanofibers/Mesoporous Carbon Composite by ... Ewa Miniach, Agata Śliwak, Adam Moyseowicz, Grażyna Gryglewicz, Growth of carbon nanofibers from methane on a hydroxyapatite- ...
Hybrid Poly(L-Lactide) (PLA) Nanofibers Incorporating POSS-Modified Multiwalled Carbon Nanotubes Prepared by Electrospinning
Specifically, the multiwalled carbon nanotube (MWNT)-polymer composites among them has expected when uniform dispersion of the ... There have been less studied on unique micristructure and properties of electrospun nanofibers incorporating POSS hybrids. In ... Hybrid Poly(L-Lactide) (PLA) Nanofibers Incorporating POSS-Modified Multiwalled Carbon Nanotubes Prepared by Electrospinning. ... Specifically, the multiwalled carbon nanotube (MWNT)-polymer composites among them has expected when uniform dispersion of the ...
Platinum Nanoparticles Supported on Nitrogen-doped Carbon Nanofibers as Efficient Poisoning Catalysts for the Hydrogenation of...
C | Free Full-Text | Catalytic Performances of Au-Pt Nanoparticles on Phosphorous Functionalized Carbon Nanofibers towards HMF...
Three carbon nanofibers (CNFs) with different graphitization degrees have been functionalized through treatment with an H3PO4- ... The structural and surface properties of carbon nanofibers determine the amount of P-functionalities, which is a key parameter ... HNO3 mixture at 150 °C, in order to incorporate P groups on carbon surface. Surface and structural properties of the ... nanofibers; functionalization; heteroatoms; HMF oxidation; preformed colloidal Au-Pt nanoparticles carbon materials; nanofibers ...
Full text] Thermodynamics and kinetic analysis of carbon nanofibers as nanozymes | NSA
... thermodynamics and kinetic properties of carbon nanofibers (CNFs) as artificial nanoscale enzymes (nanozyme).Methods: Synthesis ... The EDX spectra approved carbon element as major signal and presence of partial Ti as impurities of CNFs during CVD process. ... Thermodynamics and kinetic analysis of carbon nanofibers as nanozymes Maziar Bahreini,1 Monireh Movahedi,2 Maryam Peyvandi,3 ... Carbon nanofibers (CNFs) are carbon-based nanostructures that are examples of such structures which can be prepared by ...
Carbon Nanofibers From Wood Pulp Could Lead To Lighter Automotive Components | CleanTechnica
Carbon Nanofibers From Wood Pulp Could Lead To Lighter Automotive Components. *Facebook ... The new material could be less expensive than carbon fiber, which many manufacturers are turning to as lightweighting gains ... and combines those nanofibers with plastic to create a hybrid material strong enough to replace some of the steel used in ...
Non-Catalytic, Low-Temperature Synthesis of Carbon Nanofibers by Plasma-Enhanced Chemical Vapor Deposition | IntechOpen
Low-Temperature Synthesis of Carbon Nanofibers by Plasma-Enhanced Chemical Vapor Deposition, Nanofibers, Ashok Kumar, ... Low-Temperature Synthesis of Carbon Nanofibers by Plasma-Enhanced Chemical Vapor Deposition, Nanofibers, Ashok Kumar, ... amorphous carbon, which tends to grow isotropically, is selectively removed, and only the crystallized carbon (graphitic carbon ... TEM images of carbon nanofibers synthesized without catalyst at 90 oC. O2/CO = 3/1000. Growth time: 2 h. (a)-(c) platelets CNFs ...
Preparation of bacterial cellulose based nitrogen-doped carbon nanofibers and their applications in the oxygen reduction...
... we report a class of nitrogen-doped carbon materials with a three-dimensional nanofibrous network derived from inexpensive biom ... The products were essentially carbon nanofibers coated by a nitrogen-doped carbon layer and retained the initial structure of ... Preparation of bacterial cellulose based nitrogen-doped carbon nanofibers and their applications in the oxygen reduction ... Preparation of bacterial cellulose based nitrogen-doped carbon nanofibers and their applications in the oxygen reduction ...
All-carbon-nanofiber electrodes for high-energy rechargeable Li-O2 batteries - Energy & Environmental Science (RSC Publishing)
These all-carbon-fiber (binder-free) electrodes were found to yield high gravimetric energies (up to 2500 W h kgdischarged−1) ... Hollow carbon fibers with diameters on the order of 30 nm were grown on a ceramic porous substrate, which was used as the ... All-carbon-nanofiber electrodes for high-energy rechargeable Li-O2 batteries R. R. Mitchell, B. M. Gallant, C. V. Thompson and ... All-carbon-nanofiber electrodes for high-energy rechargeable Li-O2 batteries† ...
Tin Oxide-Carbon-Coated Sepiolite Nanofibers with Enhanced Lithium-Ion Storage Property
Shen Z, Hu Y, Chen Y, Chen R, He X, Zhang X, Shao H, Zhang Y. Controllable synthesis of carbon-coated Sn-SnO2-carbon-nanofiber ... Tin Oxide-Carbon-Coated Sepiolite Nanofibers with Enhanced Lithium-Ion Storage Property. Kai Hou,1,2 Xin Wen,3 Peng Yan,3 ... Natural sepiolite (Sep) nanofibers were coated with carbon and nanoscale SnO2 to prepare an emerging nanocomposite ([email protected] ... Fu Z, Li X, Xu G. Novel electrospun [email protected]carbon nanofibers as high performance anodes for lithium-ion batteries. Cryst Res ...
In-situ preparation and characterization of acid functionalized single walled carbon nanotubes with polyimide nanofibers |...
In-situ preparation and characterization of acid functionalized single walled carbon nanotubes with polyimide nanofibers ... "In-situ preparation and characterization of acid functionalized single walled carbon nanotubes with polyimide nanofibers", ... Nanofiber composites, Nanofibers, Polyimides, Pyromellitic dianhydride, scanning electron microscopy, Thermodynamic properties ... Carbon nanotubes, Electrospinning, High-resolution scanning electron microscopies, Hydrogen bonding interactions, Hydrogen ...
Stanford team demonstrates hollow carbon nanofiber-encapsulated sulfur cathode for high-capacity Li-S batteries - Green Car...
Schematic of design and fabrication process of hollow carbon nanofibers/sulfur composite structure. Credit: ACS, Zheng et al. ... The high aspect ratio of the carbon nanofibers provides an ideal structure for trapping polysulfides, and the thin carbon wall ... we designed a hollow carbon nanofiber-encapsulated sulfur electrode structure, comprising vertical arrays of hollow carbon ... Stanford team demonstrates hollow carbon nanofiber-encapsulated sulfur cathode for high-capacity Li-S batteries 21 September ...
CNFsCompositesNanotubes and NanofibersSynthesisComposite nanofibersElectrodeCalled carbon nanotubesVertically aligned carbonCatalystGrapheneHybrid nanofibersCNTsCellulose nanofibersElectrochemicalAerogelsDiametersAnodeGrowth of carbon nanofibersMembranesSingle walled caFabricatePolyacrylonitrilePorous Carbon NanofibersAnodes for lithium-ion batteNanocompositeElectrodesNitrogen-doped carbonCarbonizationDiameter of nanofibersFullerenesResearchersGraphiteElectrospinningMake NanofibersCatalyticCatalystsPolymersPolymer nanofibersMulti-walled carbon nanotubesBacterialAerogelMechanicalGrownMaterialsAtomsBiosensorsThermogravimetric analysisFabricationFiberPropertiesContinuous2019IonsFilamentsNanomaterialsNanoscaleMembraneGraphiticUniformThermalOxide
- To solve the problem, here we present a hierarchical ternary nanocomposite film composed of carbon nanofibers (CNFs)/surface grafted with carbon nanotubes (CNTs)/PANI.The PANI films supported by conductive CNT/CNF scaffolds were used to significantly enhance the electrochemical performance when used as electrodes of supercapacitors while very low electrical contact resistance during cycling. (nsti.org)
- Carbon nanofibers (CNFs), vapor grown carbon fibers (VGCFs), or vapor grown carbon nanofibers (VGCNFs) are cylindrical nanostructures with graphene layers arranged as stacked cones, cups or plates. (wikipedia.org)
- As carbon is readily available at low cost, CNFs are popular additives to composite materials. (wikipedia.org)
- This design was realized by direct growth of carbon nanofibers (CNFs) onto stainless steel (SSM) via a chemical vapor deposition process without addition of any external catalysts. (hindawi.com)
- This design was realized by assembly of thick layer of carbon nanofibers (CNFs) onto stainless steel mesh (SSM) (denoted as CNFs-SSM). (hindawi.com)
- The study compared the biosensing properties of laccase biosensors based on carbon nanofibers (CNFs) and copper/carbon composite nanofibers (Cu/CNFs). (mdpi.com)
- The amperometric results indicated that the Cu/CNFs/laccase(Lac)/Nafion/glass carbon electrode (GCE) possessed reliable analytical performance for the detection of catechol. (mdpi.com)
- This work demonstrates the application of electrospun single and bundled carbon nanofibers (CNFs) as piezoresistive sensing elements in flexible and ultralightweight sensors. (rug.nl)
- A hybrid electrode material for high-power supercapacitors was fabricated by grafting carbon nanofibers (CNFs) onto the surface of powdered activated carbon (AC) through catalytic chemical vapor deposition (CCVD). (wiley.com)
- A uniform thin layer of disentangled CNFs with a herringbone structure was deposited on the carbon surface through the decomposition of propane at 450 °C over an AC-supported nickel catalyst. (wiley.com)
- An in situ coating of AC with short CNFs (below 200 nm) is a very attractive method for producing the next generation of carbon composite materials with a high power performance in supercapacitors working in neutral medium. (wiley.com)
- Three carbon nanofibers (CNFs) with different graphitization degrees have been functionalized through treatment with an H 3 PO 4 -HNO 3 mixture at 150 °C, in order to incorporate P groups on carbon surface. (mdpi.com)
- Evaluation of structural features, thermodynamics and kinetic properties of carbon nanofibers (CNFs) as artificial nanoscale enzymes (nanozyme). (dovepress.com)
- The EDX spectra approved carbon element as major signal and presence of partial Ti as impurities of CNFs during CVD process. (dovepress.com)
- they can be called carbon nanotubes), CNFs grown at a lower temperature consist of stacked cone-segment shaped graphite basal plane sheets (fish-bone, herring-bone, stucked-cone, or stacked-cup structures) or the basal planes oriented perpendicular to the fibre axis (platelets structures) and CNFs with large orientation angles are often not hollow ( Fig. 1 ). (intechopen.com)
- Carbon nanofibers (CNFs) prepared by catalytic decomposition of ethylene are used as support for nickel. (springer.com)
- Herein, we report a facile preparation of meso/macroporous Co and N co-doped carbon nanofibers ([email protected]) as a high performance and cost-effective electrocatalyst toward ORR. (deepdyve.com)
- The authors describe the preparation of carbon nanofibers (CNFs) with a three-dimensional network structure by one-step carbonization of bacterial cellulose at 800 degrees C. The 3D CNFs wrapped with Nafion polymer were cast on a glassy carbon electrode (GCE) which then enables sensitive detection of Cd(II) and Pb(II). (diva-portal.org)
- This work describes the use of microwave heating for the template-assisted preparation of luminescent carbon nanofibers (CNFs) from the reaction of a range of beverage-related precursors with the nitrogen-rich polyethyleneimine. (myjournals.org)
- In this study, the adsorption of 1-chloro-4-nitrobenzene (1C4NB) on carbon nanofibers (CNFs), was investigated in a batch system. (ijnd.ir)
- The effect of nitrogen concentration in carbon nanofibers (CNFs) on the structural and electrical properties of the carbon material was studied. (catalysis.ru)
- catalyst at 823 K. Detailed investigation of the CNFs and N-CNFs by XPS, FTIR and Raman spectroscopy showed that the nitrogen introduction in carbon material distorts the graphite-like lattice and increases the structure defectiveness. (catalysis.ru)
- The electrical conductivity of N-CNFs with different nitrogen concentrations is caused by the competition of the nanofiber graphite-like structure disordering after introduction of nitrogen atoms and doping of an additional electron into the delocalized π-system of the graphite-like material. (catalysis.ru)
- We demonstrate that ionic current rectification effects are observed with a film of negatively charged carbon nanofibers (CNFs) deposited as a film or mat onto a 10 μm diameter microhole in poly-ethylene-terephthalate (PET). (bath.ac.uk)
- Carbon and nitrogen species on the surface of carbon nanotubes (N-CNTs) and nanofibers (N-CNFs) were studied by X-ray absorption (XAS) and photoelectron spectroscopy (PES) including the analysis of nitrogen distribution over the depth of materials. (catalysis.ru)
- Nitrogen enrichment in the subsurface region was found for N-CNFs, whereas the full depth analysis of N-distribution was limited by a large diameter of nanofibers. (catalysis.ru)
- Electrospinning was employed to synthesize a Ag nanoparticle (NP)-impregnated partially aligned and free-standing carbon nanofibers (CNFs) mat using a polyacrylonitrile (PAN) and silver nitrate blend followed by carbonization. (csircentral.net)
- F. Sanchez, L. Zhang, and C. Ince, "Multi-scale performance and durability of carbon nanofiber/cement composites," in Proceedings of the 3rd International Symposium on Nanotechnology in Construction , pp. 345-350, Prague, Czech Republic, 2009. (hindawi.com)
- J. M. Makar, J. C. Margeson, and J. Luh, "Carbon nanotube cement composites-early results and potential applications," in Proceedings of the 3rd International Conference on Construction Materials: Performance, Innovations and Structural Implications , pp. 1-10, Vancouver, Canada, 2005. (hindawi.com)
- At a high scan rate (100 mV s −1 ) and current loading (20 A g −1 ), the capacitance values were three- and fourfold higher than those for classical AC/carbon black composites. (wiley.com)
- Specifically, the multiwalled carbon nanotube (MWNT)-polymer composites among them has expected when uniform dispersion of the MWNTs in the polymer matrix is achieved without their aggregations. (nsti.org)
- Nanofiber composites (Polyimide/f-SWCNT) of Pyromellitic dianhydride, 4,4'-Oxydianiline, and 4,4'- (4,4'-isopropylidene diphenyl-1,1'-diyl dioxy) dianiline (PMDA-ODA/IDDA) and surface-functionalized single walled carbon nanotubes (f-SWCNT) were made by electrospinning a solution of poly(amic acid) (PAA) containing 0-2 wt% f-SWCNT followed by thermal imidization. (amrita.edu)
- Palladium/porous nitrogen-doped carbon-nanofiber (Pd/PNCNF) composites with a three-dimensional (3D) network structure have been prepared by decorating Pd nanoparticles onto PNCNFs, which were derived from KOH activated polypyrrole nanofibers. (edu.au)
- ENGLISH ABSTRACT: This study covers the successful production of poly(acrylonitrile) (PAN)/multi-walled-carbon-nanotube (MWCNT) fibrous composites by the incorporation of noncovalently functionalized MWCNTs in various loading fractions. (sun.ac.za)
- In this research, the self-sensing damage of cementitious composites with three different types of fibres (carbon nanofibre, carbon fibre and steel fibre) were experimentally investigated. (ndsl.kr)
- Composites with carbon nanofibre, carbon fibre and steel fibre. (ndsl.kr)
- Poly(lactic-co-glycolic acid): Carbon nanofiber composites f. (pubpeer.com)
- Carbon nanofiber is of great interest to scientists and engineers in fields such as materials science, composites, and energy storage due to its unique chemical, physical, and mechanical properties. (umaine.edu)
- We have developed a novel electrochemical oxalic acid (OA) sensor based on the palladium nanoparticle-loaded carbon nanofiber (Pd/CNF) composites. (edu.au)
- These composites with large amounts of spherical nanoparticles well dispersed on the carbon nanofibers (CNF) were produced by combination of electrospinning technique with thermal treatment method. (edu.au)
- The topics include synthesis, characterization and application of carbon-based namely carbon nanotubes, carbon nanofibres, fullerenes, carbon filled composites etc. (springer.com)
- Carbon fibers are also composited with other materials, such as graphite, to form reinforced carbon-carbon composites, which have a very high heat tolerance. (wikipedia.org)
- These carbon fibers had sufficient strength (modulus of elasticity and tensile strength) to be used as a reinforcement for composites having high strength to weight properties and for high temperature resistant applications. (wikipedia.org)
- The carbon-fiber production plant was sold off to form Bristol Composites . (wikipedia.org)
Nanotubes and Nanofibers2
- The NIOSH Current Intelligence Bulletin ("Occupational Exposure to Carbon Nanotubes and Nanofibers") provides some initial guidance to the potential health risks for workers who may be exposed to these nano-substances. (acoem.org)
- The study was performed with a series of bamboo-like carbon nanotubes and nanofibers having the platelet-like and herringbone-like morphology. (catalysis.ru)
- X. Zuo, X. Wang, Y. Xia, S. Yin, Q. Ji, Z. Yang, Silicon/carbon lithium-ion battery anode with 3D hierarchical macro-/mesoporous silicon network: self-templating synthesis via magnesiothermic reduction of silica/carbon composite. (springer.com)
- A facile two-step strategy involving a polyol method and subsequent thermal annealing treatment is successfully developed for the general synthesis of metal oxide/carbon coaxial nanocables. (lancs.ac.uk)
- The team provides a use of inorganic bacterial cellulose (BC) chemical regulation method pyrolyzed to achieve a large-scale synthesis, shape retention carbonization new technology, the development of carbon nanofibers preferably airgel inherited bacterial cellulose structure factors from macro to micro level, does not show significant changes with temperature super-elastic and fatigue properties over a wide temperature range. (yantuo.com.cn)
- We analyzed the nanodiamond-derived onion-like carbon (OLC) as function of synthesis temperature (1000~1400 °C), by high-resolution electron microscopy, electron energy loss spectroscopy, visible-Raman spectroscopy, ultraviolet photoemission spectroscopy, impedance spectroscopy, cyclic voltammetry and differential pulse voltammetry. (nature.com)
- Thermal activation is a desirable alternative technique, since it might be autonomously achieved within a thermal synthesis cycle as for the nanodiamond-derived onion-like carbon (OLC) 6 , apart from its advantage of the simplicity and facile mass-production. (nature.com)
- Fu J, Qiao H, Li D, Luo L, Chen K, Wei Q. Laccase Biosensor Based on Electrospun Copper/Carbon Composite Nanofibers for Catechol Detection. (mdpi.com)
- Polyvinyl alcohol (PVA) nanofibers and single-walled carbon nanotube (SWNT)/PVA composite nanofibers have been produced by electrospinning. (edu.au)
- An apparent increase in the PVA crystallinity with a concomitant change in its main crystalline phase and a reduction in the crystalline domain size were observed in the SWNT/PVA composite nanofibers, indicating the occurrence of a SWNT-induced nucleation crystallization of the PVA phase. (edu.au)
- Both the pure PVA and SWNT/PVA composite nanofibers were subjected to the following post-electrospinning treatments: (i) soaking in methanol to increase the PVA crystallinity, and (ii) cross-linking with glutaric dialdehyde to control the PVA morphology. (edu.au)
- We proposed a self-connected carbon nanofiber design for electrode in microbial bioelectrochemical system. (hindawi.com)
- Growing carbon nanofibers on a metal substrate means the interface between the two materials is highly conductive, which makes the product more useful as an electrode material for use in a range of potential applications," says Mehmet Sarac, a Ph.D. student at NC State and lead author of the paper. (phys.org)
- Hollow carbon fibers with diameters on the order of 30 nm were grown on a ceramic porous substrate, which was used as the oxygen electrode in lithium-oxygen (Li-O 2 ) batteries. (rsc.org)
- These all-carbon-fiber (binder-free) electrodes were found to yield high gravimetric energies (up to 2500 W h kg discharged −1 ) in Li-O 2 cells, translating to an energy enhancement ∼4 times greater than the state-of-the-art lithium intercalation compounds such as LiCoO 2 (∼600 W h kg electrode −1 ). (rsc.org)
- To address these requirements, we designed a hollow carbon nanofiber-encapsulated sulfur electrode structure, comprising vertical arrays of hollow carbon nanofibers filled with melted sulfur. (greencarcongress.com)
- The small dimension of the nanofibers provides a large surface area per unit mass for Li 2 S deposition during cycling and reduces pulverization of electrode materials due to volumetric expansion. (greencarcongress.com)
- Tetragonal Nb2 O5 /C and monoclinic Ti2 Nb10 O29 /C hybrid nanofibers synthesized at 1000 °C displayed the highest electrochemical performance, with capacity values of 243 and 267 mAh g-1 , respectively, normalized to the electrode mass. (americanelements.com)
- The addition of GO in the multilayer of carbon nanofibers network effectively enhanced the conductivity of the whole electrode, and greatly reduced the direct contact between Si and electrolyte. (springer.com)
- When applied to oxidation of OA, the Pd/CNF modified carbon paste electrode (Pd/CNF-CPE) exhibited high electrocatalytic performances with fast voltammetric responses and notably decreased overpotential compared to the bare and even the CNF modified CPE. (edu.au)
- The performance and stability of a direct methanol fuel cell (DMFC) with membrane electrode assemblies (MEA) using different Nafion® contents (30, 50 and 70 wt% or MEA30, MEA50 and MEA70, respectively) and graphitized carbon nanofiber (GNF) supported PtRu catalyst at the anode was investigated by a constant current measurement of 9 days (230 h) in a DMFC and characterization with various techniques before and after this measurement. (aalto.fi)
- 16] demonstrated a high performance supercapacitor using a MnO2 modified carbon nanofiber aerogel () as an electrode material. (sciencedocbox.com)
Called carbon nanotubes1
- Carbon nanofibers with graphene layers wrapped into perfect cylinders are called carbon nanotubes. (wikipedia.org)
Vertically aligned carbon7
- Materials science researchers have demonstrated that vertically aligned carbon nanofibers can be manufactured using ambient air, making the manufacturing process safer and less expensive. (nsf.gov)
- Vertically aligned carbon nanofibers hold promise for use in gene-delivery tools, sensors, batteries and other technologies. (nsf.gov)
- This image illustrates how researchers use an airbrush to grow vertically aligned carbon nanofibers. (phys.org)
- Researchers from North Carolina State University used airbrushing techniques to grow vertically aligned carbon nanofibers on several different metal substrates, opening the door for incorporating these nanofibers into gene delivery devices, sensors, batteries and other technologies. (phys.org)
- The paper, "Airbrushed Nickel Nanoparticles for Large-Area Growth of Vertically Aligned Carbon Nanofibers on Metal (Al, Cu, Ti) Surfaces," was published online Sept. 9 in ACS Applied Materials & Interfaces . (phys.org)
- The ability to control the permeability of a synthetic membrane structure formed by a spatially stochastic forest of vertically aligned carbon nanofibres is demonstrated. (sciencedom.com)
- We are investigating the use of vertically aligned carbon nanofibers (VACNFs) as a material for controlling molecular transport in a manner analogous to natural cell membranes. (nsti.org)
- Here, gas-phase molecules are decomposed at high temperatures and carbon is deposited in the presence of a transition metal catalyst on a substrate where subsequent growth of the fiber around the catalyst particles is realized. (wikipedia.org)
- The nanofiber diameter depends on the catalyst size. (wikipedia.org)
- citation needed] The most commonly used catalyst is iron, often treated with sulfur, hydrogen sulfide, etc. to lower the melting point and facilitate its penetration into the pores of carbon and hence, to produce more growth sites. (wikipedia.org)
- citation needed] In 2017, a research group in Tsinghua University reported the epytixial growth of aligned, continuous, catalyst-free carbon nanofiber from a carbon nanotube template. (wikipedia.org)
- This scanning transmission electron micrograph of carbon nanofibers grown on copper foil and elemental maps shows the presence of both nickel and copper in the catalyst nanoparticles. (phys.org)
- and is generally accepted for high-temperature conditions, but the diffusion of carbon on the catalyst surface. (intechopen.com)
- The obtained nanocomposite was successfully used as a recoverable heterogeneous catalyst in the Michael addition reaction of carbon nucleophiles such as malononitrile, indole and 2-methylindole to various α,β-unsaturated carbonyl compounds. (deepdyve.com)
- While traditional PEM catalysts depend on expensive platinum (Pt), this catalyst uses more abundant (and cheaper) metals (cobalt, iron, nickel) that are integrated into engineered carbon-fiber membranes to achieve needed performance in the fuel cell reaction. (fuelcells.io)
- When the gas (or steam) containing carbon source flows over the surface of the catalyst, it will be catalytically decomposed. (mis-asia.com)
- 10. The process of claim 9 wherein the step of separating the carbon nanotubes from the metallic catalyst further comprises treating the metallic catalyst with acid or base to dissolve the metallic catalyst thereby yielding the carbon nanotubes. (google.com)
- The optimum anode Nafion content for commercial Vulcan carbon black supported PtRu catalysts is between 20 and 40 wt%, so the GNF-supported catalyst requires more Nafion to reach its peak power. (aalto.fi)
- Because of the highly porous and interconnected 3D structure, the obtained N doped carbon aerogel was used directly as a catalyst for the oxygen reduction reaction (ORR), and it exhibited superior catalytic activity. (sciencedocbox.com)
- The multi-component materials, such as carbon nanotubes (CNTs) or graphene, have been employed to improve the conductivity and mechanical strength, as well as to buffer volume changes though with a complex preparation process and higher cost of C-based materials. (pubmedcentralcanada.ca)
- The unique structure was alternately composed of Si-encapsulated conjugated carbon nanofibers and graphene oxide (GO) layers. (springer.com)
- Carbon nanotubes, and graphene by having superelastic and thermal stability inherent mechanical, in recent years, is used as the base material prepared lightweight superelastic material. (yantuo.com.cn)
- Carbon nanotubes are seamless hollow tubes made of graphene sheets formed from carbon atoms. (mis-asia.com)
- Carbon nanotubes (CNTs) are cylinders of one or more layers of graphene (lattice). (wikipedia.org)
- Free-standing, binder-free, titanium-niobium oxide/carbon hybrid nanofibers are prepared for Li-ion battery applications. (americanelements.com)
- Carbon Nanotube/Conducting Polymer Hybrid Nanofibers as Novel Organic Bioelectronic Interfaces for Efficient Removal of Protein-Bound Uremic Toxins. (bvsalud.org)
- They were synthesized via carbonization of fibrillar cellulose impregnated with CNTs (carbon nanotubes). (gu.se)
- The ensuing composite materials consisted of a CNF (carbon nanofiber) scaffold (fiber diameter in the range of 50-250 nm) covered with layers of CNTs (tube diameter in the range of 1-20 nm). (gu.se)
- The main objective of this thesis is to produce conductive nanopapers from cellulose nanofibers (CNF) or bacterial cellulose (BC) and tree different conductive materials: polypyrrole (PPy), poly(3,4-ethylenedioxythiophene : polystyrene sulfonate (PEDOT:PSS) and multi-walled carbon nanotubes (MWCNT). (udg.edu)
- A novel process of using phthalimide to modify cellulose nanofibers (CNF) for CO 2 adsorption was studied. (tue.nl)
- In the current work, palm fruit stalks cellulose nanofibers (CNF), TEMPO-oxidized CNF (OCNF), and activated carbon (AC) were used to make thin film membranes for removal of E. coli bacteria from water. (diva-portal.org)
- Natural sepiolite (Sep) nanofibers were coated with carbon and nanoscale SnO 2 to prepare an emerging nanocomposite (SnO 2 [email protected]), which exhibited enhanced electrochemical performance. (pubmedcentralcanada.ca)
- Conclusively, the surface of carbon nanofibers can be modified by heteroatom doping or surface activation which can improve the electrochemical performance of the materials. (ump.edu.my)
- Carbon nanofibers (CNF) have shown to improve electrochemical performance when used as anode materials in Lithium‐ion batteries. (iith.ac.in)
- Electrochemical tests reveal that the rate performance and cycling ability of TiO 2 @C nanofibers have been enhanced obviously. (ingentaconnect.com)
- Conductive and compressible carbon aerogels are useful in a variety of applications. (phys.org)
- In recent decades, carbon aerogels have been widely explored by using graphitic carbons and soft carbons, which show advantages in superelasticity. (phys.org)
- Up to now, it has been a challenge to fabricate superelastic hard carbon-based aerogels. (phys.org)
- Recently, inspired by the flexibility and rigidity of natural spider silks, a research team led by Shu-Hong Yu from the University of Science and Technology of China developed a simple method to fabricate superelastic and fatigue resistant hard carbon aerogels with nanofibrous network structure by using resorcinol-formaldehyde resin as a hard carbon source. (phys.org)
- entitled "Superelastic hard carbon nanofiber aerogels. (phys.org)
- Moreover, physical properties (such as diameters of nanofiber, densities of aerogels, and mechanical properties ) can be controlled by simply tuning templates and the amount of raw materials. (phys.org)
- Zhi‐Long Yu et al, Superelastic Hard Carbon Nanofiber Aerogels, Advanced Materials (2019). (phys.org)
- The samples were prepared by treating the BC aerogels with various amounts of pyrrole to ensure a uniform coating on the surface of the BC nanofibers, followed by a carbonization process under different temperatures. (rsc.org)
- 8. The composite composition as defined in claim 1 wherein the electrochemically active material is selected from the group consisting of activated carbon, carbon aerogels, polymeric carbons, carbon foams derived from polymers, oxides, hydrous oxides, carbides, nitrides, conducting polymers, and combinations thereof. (freepatentsonline.com)
- Carbon aerogels prepared perfectly bacterial cellulose inherited from macro to micro level structure, having a significant thermal mechanical properties. (yantuo.com.cn)
- Outcomes related to Temperature-Invariant Superelastic and Fatigue Resistant Carbon Nanofiber Aerogels published in \"advancedMaterial \"(Adv. Mater. (yantuo.com.cn)
- 1. Introduction Carbon aerogels (CAs), as a special class of carbon foams, were first synthesized by Pekala  in Over the past few decades, CAs have attracted considerable attention because of their superior characteristics such as low mass density, controllable uniform micro and meso porosity, and large specific surface area [2 4]. (sciencedocbox.com)
- This process typically yields VGCF with sub-micrometre diameters and lengths of a few to 100 µm, which accords with the definition of carbon nanofibers. (wikipedia.org)
- Carbon fiber substrates were prepared from carbon fibers with either nanoscale or micron scale diameters, and both high and low surface energy fibers were investigated. (actapress.com)
- Proper operation of the rapid freezing device was shown to result in the production of lignin nanofibers with diameters of less than 100 nm, as determined by scanning electron microscopy. (umaine.edu)
- Subsequent freeze drying and carbonization yielded carbon nanofiber with diameters of similar magnitude. (umaine.edu)
- Diameters of single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs) are typically 0.8 to 2 nm and 5 to 20 nm, respectively, although MWNT diameters can exceed 100 nm. (wikipedia.org)
- Nanofibers are fibers with diameters in the nanometer range. (wikipedia.org)
- The diameters of nanofibers depend on the type of polymer used and the method of production. (wikipedia.org)
- Electrospinning is the most commonly used method to generate nanofibers because of the straightforward setup, the ability to mass-produce continuous nanofibers from various polymers, and the capability to generate ultrathin fibers with controllable diameters, compositions, and orientations. (wikipedia.org)
- Parameters such as jet stream movement and polymer concentration have to be controlled to produce nanofibers with uniform diameters and morphologies. (wikipedia.org)
Growth of carbon nanofibers1
- Toebes, M.L., Bitter, J.H., Dillen, A.J.V., Jong, K.P.D.: Impact of the structure and reactivity of nickel particles on the catalytic growth of carbon nanofibers. (springer.com)
- Dense arrays of carbon nanofibers are being used as membranes that are integrated within fluidic structures. (nsti.org)
- To prepare this system, we employed electrospinning to fabricate electrically conductive quaternary composite nanofiber mats-comprising multiwalled carbon nanotubes (MWCNTs), poly(3,4-ethylenedioxythiophene)polystyrenesulfonate (PEDOTPSS), poly( ethylene oxide ) (PEO), and (3-glycidyloxypropyl)trimethoxysilane (GOPS)-on conventional polyethersulfone (PES) dialysis membranes . (bvsalud.org)
Single walled ca1
- Compared with single-walled carbon nanotubes, carbon nanofibers are much more economical and practical than single-walled carbon nanotubes. (mis-asia.com)
- Electrospinning is the most commonly used method to fabricate nanofibers. (wikipedia.org)
- Silver/titanium dioxide composite nanoparticles imbedded in polyacrylonitrile (PAN) nanofibers and converted into carbon nanofibers by stabilization and calcination was obtained and tested for capacitive deionization technology. (scirp.org)
- The conjugated carbon nanofibers network formed by polyacrylonitrile can not only shorten the ion transport path, but also alleviate volume expansion of Si during lithium ion insertion/extraction due to its well-maintained polymer elasticity. (springer.com)
Porous Carbon Nanofibers1
- An ultra-facile fabrication process for the preparation of phosphorus doped porous carbon nanofibers (P-PCNFs) through the electrospinning and heat treatment method has been studied. (ump.edu.my)
Anodes for lithium-ion batte1
- M.-S. Wang, W.-L. Song, J. Wang, L.-Z. Fan, Highly uniform silicon nanoparticle/porous carbon nanofiber hybrids towards free-standing high-performance anodes for lithium-ion batteries. (springer.com)
- Structure and property of a nanocomposite consisting of modified carbon nanofibers (MCNFs), homogenously dispersed in an elastomeric ethylene/propylene (EP) random copolymer (84.3 wt% P) matrix, were studied by in situ synchrotron X-ray diffraction during uniaxial deformation. (uclan.ac.uk)
- Among these, carbon fiber type electrodes were promising anodes for MFCs due to their highly porous architecture. (hindawi.com)
- The fiber mat electrodes, for example, carbon/graphite felts, were bonded with a metal wire or onto a high conductive current collector (e.g., graphite plate or foil) by conductive binders in lab-scale running. (hindawi.com)
- The new process, developed by George Washington University chemistry professor Stuart Licht and a team of colleagues, uses concentrated solar energy to create a molten bath of chemicals that reaches 1,380 degrees F (749 degrees C). When air is added to the cell, the carbon dioxide dissolves when subjected to the heat and direct current from nickel and steel electrodes. (howstuffworks.com)
- As the gas breaks down, the carbon molecules cling to the electrodes and build up into nanofibers. (howstuffworks.com)
- Then the electrodes can be removed from the bath so that the carbon nanofibers can be put to use. (howstuffworks.com)
- The high gravimetric energy achieved in this study can be attributed to low carbon packing in the grown carbon-fiber electrodes and highly efficient utilization of the available carbon mass and void volume for Li 2 O 2 formation. (rsc.org)
- Binder-Free Hybrid Titanium-Niobium Oxide/Carbon Nanofiber Mats for Lithium-Ion Battery Electrodes. (americanelements.com)
- Tolosa A, Fleischmann S, Grobelsek I, Quade A, Lim E, Presser V. Binder-Free Hybrid Titanium-Niobium Oxide/Carbon Nanofiber Mats for Lithium-Ion Battery Electrodes. (americanelements.com)
- Their limit of detection and the linear range of detection, in the post-treatment-free condition, were as excellent as those of the nano-carbon electrodes post-treated by Pt-decoration, N-doping, plasma, or polymer. (nature.com)
- Nanofibers are useful for any application that benefits from a high ratio of surface area to volume - solar cells, for instance, which try to maximize exposure to sunlight, or fuel cell electrodes, which catalyze reactions at their surfaces. (scitechdaily.com)
- In one of our previous works, nitrogen-doped carbon nanofibers were self-connected to SSM and used as high performance binder-free cathode in MFCs [ 10 ]. (hindawi.com)
- In this paper, we report a class of nitrogen-doped carbon materials with a three-dimensional nanofibrous network derived from inexpensive biomass bacterial cellulose (BC) for both ORR and SIB applications. (rsc.org)
- The products were essentially carbon nanofibers coated by a nitrogen-doped carbon layer and retained the initial structure of BC. (rsc.org)
- A 3D porous nitrogen-doped carbon-nanofiber-supported palladium compos" by Jun Wang, Lili Liu et al. (edu.au)
- In this paper, we report on novel fabrication of self-supported nitrogen-doped carbon-supported titanium nanofibers (N[sbnd][email protected]) and carbon-supported titanium ([email protected]) electrocatalysts via a facile electrospinning route. (northumbria.ac.uk)
- The two kinds of nanofibers were prepared by electrospinning and carbonization under the same conditions. (mdpi.com)
- The researchers fabricated the hollow carbon nanofiber arrays using anodic aluminum oxide (AAO) templates through thermal carbonization of polystyrene. (greencarcongress.com)
- The present work investigates the feasibility of utilizing lignin to produce carbon nanofiber via an ice templating method, with subsequent carbonization. (umaine.edu)
- It is shown in the present work that carbon nanofiber may be generated from lignin via rapid freezing, freeze drying, and carbonization. (umaine.edu)
Diameter of nanofibers1
- High-resolution scanning electron microscopy images showed the average diameter of nanofibers to be below 150 nm, and transmission electron microscopy images showed that SWCNTs were aligned inside the polymer nanofiber. (amrita.edu)
- Elemental carbon has a number of allotropes(variants) including diamond, graphite, and fullerenes. (wikipedia.org)
- Carbon nanotubes (complex mixtures of artificial amorphous and/or crystalline nano-minerals), even in certain geological materials, have been detected in trace concentrations of fullerenes, such as coal-derived fly ash carbon nanotubes are widely used Use, including electronic materials, fuel cells, reinforced composite materials and medical fields. (mis-asia.com)
- Researchers believe that this "carbon foam" acts as a sponge to absorb the molten foam during burning and to prevent dripping. (nist.gov)
- Carbon, the active ingredient in charcoal, is normally not considered a fire retardant, but researchers at the National Institute of Standards and Technology (NIST) have determined that adding a small amount of carbon nanofibers to the polyurethane foams used in some upholstered furniture can reduce flammability by about 35 percent when compared to foam infused with conventional fire retardants. (nist.gov)
- Researchers added carbon nanofibers to the foam because they knew that adding nanoparticles to a polymer normally increases the viscosity, so it doesn't flow as easily. (nist.gov)
- Researchers from North Carolina State University have found a new way to develop straight carbon nanofibers on a transparent substrate. (phys.org)
- Researchers are generating carbon nanofibers (above) from carbon dioxide, removing a greenhouse gas from the air to make products. (howstuffworks.com)
- To tackle the polysulfide problem, researchers at Stanford University led by Dr. Yi Cui have developed a hollow carbon nanofiber-encapsulated sulfur cathode for effective trapping of polysulfides. (greencarcongress.com)
- a technique called electrospinning, the UCR researchers made paper-thin sheets of carbon nanofibers that contained metal ions - either cobalt, iron or nickel. (fuelcells.io)
- In the latest issue of the journal Nanotechnology , MIT researchers describe a new technique for producing nanofibers that increases the rate of production fourfold while reducing energy consumption by more than 90 percent, holding out the prospect of cheap, efficient nanofiber production. (scitechdaily.com)
- Only at the end of the 20th century have the words electrospinning and nanofiber become common language among scientists and researchers. (wikipedia.org)
- Various carbon-based materials had been widely employed for anodes in MFCs, such as graphite plate/rod, carbon cloth, carbon felt, carbon paper, reticulated vitrified carbon, and graphite brush, which had been summarized in [ 4 ]. (hindawi.com)
- Park, C., Baker, R.T.K.: Catalytic behavior of graphite nanofiber supported nickel particles. (springer.com)
- December 23, reporters learned that the University of Science and Technology of China Yushu Hong Liang Haiwei team and a research group reported by pyrolysis of chemical control, the structure of biological materials (BC, ie bacterial cellulose) heat into graphite carbon nanofibers gas condensate method gum (CNFAs) a. (yantuo.com.cn)
- According to the size, carbon nanospheres are divided into: (1) Fullerene family Cn and onion carbon structure (closed graphite layer structure with a diameter of 2-20nm), such as C60, C70 (2) The diameter of incomplete graphite nano-carbon spheres Between 50nm and 1μm. (mis-asia.com)
- Carbon fibers or carbon fibres (alternatively CF, graphite fiber or graphite fibre) are fibers about 5-10 micrometres in diameter and composed mostly of carbon atoms. (wikipedia.org)
- Last step involves electrospinning of viscous PAN solution containing silver/TiO 2 nanoparticles, thus obtaining PAN nanofibers containing silver/TiO 2 nanoparticles. (scirp.org)
- The hybrid [email protected] 2 is synthesized through the hydrothermal growth of SnO 2 nanoflowers on the surface of N-doped carbon fibers obtained by electrospinning. (springer.com)
- In this work, we synthesized a hybrid structure of N-doped carbon [email protected] 2 nanoflowers ([email protected] 2 ) by electrospinning/hydrothermal methods. (springer.com)
- Foumani, Mahdi 2017-06-06 00:00:00 Copper (II) acetylacetonate containing nanofibers of polyvinyl alcohol (Cu(acac)2-PVA) were prepared by electrospinning and characterized using scanning electron microscopy, transmission electron microscopy, X-ray diffraction analysis, Fourier transform infrared spectroscopy, inductively coupled plasma (ICP) and diffuse reflectance spectroscopy. (deepdyve.com)
- Scientists from MIT have demonstrated a systematic way to produce nanofibers through electrospinning that boosts production while cutting energy consumption by 92 percent. (scitechdaily.com)
- We have demonstrated a systematic way to produce nanofibers through electrospinning that surpasses the state of the art," says Luis Fernando Velásquez-García, a principal research scientist in MIT's Microsystems Technology Laboratories, who led the new work. (scitechdaily.com)
- The standard technique for manufacturing nanofibers is called electrospinning, and it comes in two varieties. (scitechdaily.com)
- For this purpose, ultrathin N‐doped carbon‐coated TiO 2 coaxial nanofibers have been designed and synthesized by a facile electrospinning approach. (ingentaconnect.com)
- Nanofibers were first produced via electrospinning more than four centuries ago. (wikipedia.org)
- The structural and surface properties of carbon nanofibers determine the amount of P-functionalities, which is a key parameter affecting the catalytic performances of Au-Pt. (mdpi.com)
- Campisi S, Capelli S, Motta D, Trujillo FJS, Davies TE, Prati L, Dimitratos N, Villa A. Catalytic Performances of Au-Pt Nanoparticles on Phosphorous Functionalized Carbon Nanofibers towards HMF Oxidation. (mdpi.com)
- Schematic cross-sectional illustrations of carbon nanofibers grown by catalytic CVD. (intechopen.com)
- relations, it is crucial to prepare well-defined carbon nanofibers (CNF) supports and well-defined catalytic metal phases on these supports. (uu.nl)
- Chemical vapor deposition: It is a widely used method for preparing carbon materials, which can be divided into catalytic chemical vapor deposition and non-catalytic chemical vapor deposition. (mis-asia.com)
- A method and apparatus for catalytic production of carbon nanotubes. (google.com)
- Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) gases until preferred process conditions have been attained, thereby controlling the quantity and form of carbon nanotubes produced. (google.com)
- The method also contemplates methods and apparatus which recycle and reuse the gases and catalytic particulate materials, thereby maximizing cost efficiency, reducing wastes, reducing the need for additional raw materials, and producing the carbon nanotubes, especially SWNTs, in greater quantities and for lower costs. (google.com)
- 6. The process of claim 1 wherein the step of flushing the carbon-containing gas further comprises exposing the reacted catalytic particles to a heated inert gas under elevated pressure. (google.com)
- It's common to use nickel nanoparticles as catalysts to grow carbon nanofibers , and we were able to coat metal substrates with nickel nanoparticles using an airbrush," says Dr. Joseph Tracy, an associate professor of materials science and engineering at NC State and senior author of the paper. (phys.org)
- The outstanding performance of [email protected] catalysts is attributed to i) enlarged surface area with bimodal porosity achieved by leaching of inactive species, ii) increase of exposed ORR active Co-Nx moieties and graphitic edge sites, and iii) enhanced electrical conductivity and corrosion resistance due to the existence of numerous graphitic flakes in carbon matrix. (deepdyve.com)
- The aim of the work described in this thesis was to investigate the role and nature of nanostructured carbon materials, oxygen surface groups and promoters on platinum-based catalysts for the selective hydrogenation of cinnamaldehyde. (uu.nl)
- Carbon nanofibers can be combined with other polymers to form nano-scale composite materials with excellent properties. (mis-asia.com)
- nanofibers of other water soluble polymers including poly(acrylic acid), polyacrylamide, and carboxymethylcellulose have been successfully produced. (umaine.edu)
- Nanofibers can be generated from different polymers and hence have different physical properties and application potentials. (wikipedia.org)
- For this purpose, first electrospun nanofibers of novel silane copolymers and polymer nanofibers containing Si precursor will be produced. (sabanciuniv.edu)
- All polymer nanofibers are unique for their large surface area-to-volume ratio, high porosity, appreciable mechanical strength, and flexibility in functionalization compared to their microfiber counterparts. (wikipedia.org)
Multi-walled carbon nanotubes3
- Just prior to the release of this CIB NIOSH reported at the annual meeting of the Society of Toxicology [03/11/2013] preliminary findings from a new laboratory study in which mice were exposed by inhalation to multi-walled carbon nanotubes (MWCNT) [see https://blogs.cdc.gov/niosh-science-blog/2013/03/11/mwcnt/ ]. (cdc.gov)
- Different ratios of carbon nanofibers (CNF) and carboxyl functionalized multi-walled carbon nanotubes (CMWCNT), dispersed by the polycarboxylate based superplasticizer, were added in this study to investigate mechanical damping behavior of cement paste. (ingentaconnect.com)
- have reported a novel radical initiated thermal crosslinking method to fabricated macroscopic, free-standing, porous, all-carbon scaffolds using single- and multi-walled carbon nanotubes as building blocks. (wikipedia.org)
- In this work, we developed a facile and effective route to prepare a N doped carbon nanofiber aerogel (N ) with low mass density, continuous porosity, high specific surface area, and electrical conductivity from a bacterial cellulose precursor. (sciencedocbox.com)
- They report their process thus: The polymerization of resin monomers was initiated in the presence of nanofibers as structural templates to prepare a hydrogel with nanofibrous networks, followed by drying and pyrolysis to produce hard carbon aerogel. (phys.org)
- Y. L. M. Di Gao and L. M. Pend, "Mechanical and electrical properties of carbon-nanofiber self-consolidating concrete," in Earth and Space 2010 , pp. 2577-2585, American Society of Civil Engineers, 2010. (hindawi.com)
- Carbon nanofibers are an example of a material that may improve neural implant interactions with native cell populations since these nanofibers have promising cytocompatibility, mechanical, and electrical properties. (actapress.com)
- Dynamic mechanical thermal analyses of both pure PVA and SWNT/PVA composite electrospun nanofibers indicated that SWNT-polymer interaction facilitated the formation of crystalline domains, which can be further enhanced by soaking the nanofiber in methanol and/or cross-linking the polymer with glutaric dialdehyde. (edu.au)
- Since the carbon nanofiber airgel has excellent thermal stability and mechanical properties prepared macro implemented in many areas will have important applications, particularly suitable for mechanical buffer under extreme conditions, a pressure sensor, a solar cell energy and aerospace damping Wait. (yantuo.com.cn)
- Carbon nanofiber materials are generally regarded as the matrix material of composite materials and enhance the overall conductivity and mechanical properties of the composite materials. (mis-asia.com)
- Many chemical and mechanical techniques for preparing nanofibers exist. (wikipedia.org)
- A hybrid structure of SnO 2 nanoflowers grown on N-doped carbon nanofibers ([email protected] 2 ) was successfully constructed. (springer.com)
- This image is a scanning electron micrograph of vertical carbon nanofibers grown on titanium foil. (phys.org)
- The nanofiber structure allowed for the clear visualization of Li 2 O 2 formation and morphological evolution during discharge and its disappearance upon charge, where Li 2 O 2 particles grown on the sidewalls of the aligned carbon fibers were found to be toroids, having particle sizes increasing (up to ∼1 μm) with increasing depth-of-discharge. (rsc.org)
- Carbon nanofibers are still more expensive than conventional flame retardant materials, but because the price is decreasing and so little needs to be used, they could soon be an affordable and effective option," Gilman explained. (nist.gov)
- The objective of the present in vitro study was to determine cytocompatibility properties of carbon nanofibers and porous silicon materials. (actapress.com)
- What if we somehow could suck the excess carbon dioxide that we're producing out of the atmosphere, and then actually use it to make tons of carbon nanofiber building materials? (howstuffworks.com)
- When carbon nanofiber costs drop, the market is poised to take off with explosive growth by replacing materials and applications in the building, aerospace, car, nanoelectronics, battery, sensor and related industry sectors. (howstuffworks.com)
- Our work has demonstrated a rational design of electroactive carbon materials from a low-cost precursor. (rsc.org)
- Luminescent carbon nanomaterials are important materials for sensing, imaging, and display technologies. (myjournals.org)
- To that purpose, platinum was deposited on oxidized nanostructured carbon materials, i.e. (uu.nl)
- Three different structures of carbon materials (carbon balls, bamboo-shaped carbon nanotubes, and straight carbon nanotubes) synthesized under H2 catalysis at 1000° C. can be used to change their flow rate by atmospheric pressure chemical vapor deposition (APCVD). (mis-asia.com)
- This allows carbon nanofibers to be researched and made into high-functional polymer filler materials, and then mass-produced and used. (mis-asia.com)
- For a wide variety of the nano-carbon (n-C) materials applications, the defect control is an important issue 1 . (nature.com)
- Nanofibers can also yield materials that are permeable only at very small scales, like water filters, or that are remarkably tough for their weight, like body armor. (scitechdaily.com)
- This volume covers all aspects of carbon and oxide based nanostructured materials. (springer.com)
- Carbon fibers are usually combined with other materials to form a composite . (wikipedia.org)
- And it would be almost as great if we could find some way to make large, inexpensive quantities of carbon nanofiber , a special arrangement of carbon atoms that's many times stronger and lighter than steel, and is a highly efficient conductor of heat and electricity as well. (howstuffworks.com)
- In this surface diffusion model, carbon atoms adsorbed at the top surface of the metal particles diffuse along the surface, where their motion is much faster than bulk diffusion, and then segregate at the bottom of the particles, forming graphitic planes. (intechopen.com)
- To produce a carbon fiber, the carbon atoms are bonded together in crystals that are more or less aligned parallel to the long axis of the fiber as the crystal alignment gives the fiber high strength-to-volume ratio (making it strong for its size). (wikipedia.org)
- Recentment, s'està estudiant el seu ús en elèctrodes flexibles, biosensors o supercapacitants. (udg.edu)
- The obtained fiber was fully characterized by measuring and comparing the FTIR spectra and thermogravimetric analysis (TGA) diagrams of PAN nanofiber with and without imbedded nanoparticles, in order to show the effect of silver/TiO 2 nanoparticles on the electrospun fiber properties. (scirp.org)
- The fabrication process includes thickening of continuous carbon nanotube films by gas-phase pyrolytic carbon deposition and further graphitization of the carbon layer by high temperature treatment. (wikipedia.org)
- Schematic of design and fabrication process of hollow carbon nanofibers/sulfur composite structure. (greencarcongress.com)
- These 3D all-carbon scaffolds/architectures may be used for the fabrication of the next generation of energy storage, supercapacitors, field emission transistors, high-performance catalysis, photovoltaics, and biomedical devices and implants. (wikipedia.org)
- BC pellicles are composed of highly interconnected cellulose nanofiber networks, and they are favorable precursors for the large scale fabrication of CAs. (sciencedocbox.com)
- Astrocytes (glial scar tissue-forming cells) were seeded separately onto the carbon fiber and silicon substrates. (actapress.com)
- Astrocytes preferentially adhered on the largest diameter carbon fiber with the lower surface energy and preferred the silicon sample with the greatest porosity. (actapress.com)
- Controlling carbon fiber diameter and silicon porosity may be approaches for increasing implant contact with neurons and decreasing scar tissue formation. (actapress.com)
- The new material could be less expensive than carbon fiber, which many manufacturers are turning to as lightweighting gains increased importance for meeting tighter regulations on emissions and economy. (cleantechnica.com)
- Carbon fiber is lighter than aluminum and stronger than steel. (mis-asia.com)
- For the rigid composite material made from carbon fiber used in aerospace and other applications, see Carbon fiber reinforced polymer . (wikipedia.org)
- These properties have made carbon fiber very popular in aerospace, civil engineering, military, and motorsports, along with other competition sports. (wikipedia.org)
- When impregnated with a plastic resin and baked it forms carbon-fiber-reinforced polymer (often referred to as carbon fiber) which has a very high strength-to-weight ratio , and is extremely rigid although somewhat brittle. (wikipedia.org)
-  In 1879, Thomas Edison baked cotton threads or bamboo slivers at high temperatures carbonizing them into an all-carbon fiber filament used in one of the first incandescent light bulbs to be heated by electricity. (wikipedia.org)
- This had produced a carbon fiber that contained about 55% carbon. (wikipedia.org)
- In 1960 Richard Millington of H.I. Thompson Fiberglas Co. developed a process (US Patent No. 3,294,489) for producing a high carbon content (99%) fiber using rayon as a precursor. (wikipedia.org)
- The high potential strength of carbon fiber was realized in 1963 in a process developed by W. Watt, L. N. Phillips, and W. Johnson at the Royal Aircraft Establishment at Farnborough, Hampshire . (wikipedia.org)
- Within a few years, after successful use in 1968 of a Hyfil carbon-fiber fan assembly in the Rolls-Royce Conway jet engines of the Vickers VC10 ,  Rolls-Royce took advantage of the new material's properties to break into the American market with its RB-211 aero-engine with carbon-fiber compressor blades. (wikipedia.org)
- Morganite decided that carbon-fiber production was peripheral to its core business, leaving Courtaulds as the only big UK manufacturer. (wikipedia.org)
- Courtelle's water-based inorganic process made the product susceptible to impurities that did not affect the organic process used by other carbon-fiber manufacturers, leading Courtaulds ceasing carbon-fiber production in 1991. (wikipedia.org)
- Though they all consist of elemental carbon, their properties vary widely. (wikipedia.org)
- There have been less studied on unique micristructure and properties of electrospun nanofibers incorporating POSS hybrids. (nsti.org)
- Effects of the PVA morphology on the tensile properties of the resultant electrospun nanofibers were examined. (edu.au)
- Carbon Nanofibers (CNF) have gained much interest due to very high strength, chemical purity, chemical inertness and unique electronic properties. (tue.nl)
- This process proved to be inefficient, as the resulting fibers contained only about 20% carbon and had low strength and stiffness properties. (wikipedia.org)
- The improved rate performance resulted from the excellent charge propagation in the continuous nanofiber network. (americanelements.com)
- With the development of a hydrogen-carbon nanofiber production in a continuous process carbon nanofibers can be produced in an economic way and at the same time access to environmentally friendly hydrogen is enabled. (nachhaltigwirtschaften.at)
- This is the peer reviewed version of the following article: Tshwenya, L. , Marken, F. and Arotiba, O. . (2019), Carbon Nanofibers Provide a Cationic Rectifier Material: Specific Electrolyte Effects, Bipolar Reactivity, and Prospect for Desalination. (bath.ac.uk)
- N-doped carbon nanofiber accelerates the migration of Li + /Na + ions and guides the growth of the SnO 2 nanoflowers. (springer.com)
- The high aspect ratio of the carbon nanofibers provides an ideal structure for trapping polysulfides, and the thin carbon wall allows rapid transport of lithium ions, the team noted in their paper. (greencarcongress.com)
- Upon heating, the ions formed ultrafine metal nanoparticles that catalyzed the transformation of carbon into a high-performance graphitic carbon. (fuelcells.io)
- Nanofibers - polymer filaments only a couple of hundred nanometers in diameter - have a huge range of potential applications, from solar cells to water filtration to fuel cells. (scitechdaily.com)
- The development of these multi-emissive one-dimensional (1D) carbon nanomaterials offers potential for a range of applications. (myjournals.org)
- Some typical carbon nanomaterials, such as nanospheres, can be detected in the clean coal products of low-quality Nagaland (India) coal by molten alkali leaching (MCL), while removing a considerable amount of minerals and sulfur. (mis-asia.com)
- These carbon nanomaterials are not common in this type of coal. (mis-asia.com)
- The book also includes the modeling of oxide and carbon based nanomaterials. (springer.com)
- Sepiolite could act as a steady skeleton, carbon coating principally led sepiolite from an isolated to an electric state, and decoration of nanoscale SnO 2 was beneficial to the functionization of sepiolite. (pubmedcentralcanada.ca)
- If the membrane is able to tolerate carbon from fuels such as methanol, the technology might find its way into micro fuel cell applications which can use liquid fuels. (fuelcells.io)
- Control of membrane pore size and morphology was achieved by varying the thickness of a uniform, conformal coating of SiO 2 on the nanofibre surfaces. (sciencedom.com)
- Further, statistically reproducible transport regimes are predicted for the spatially stochastic membrane as a function of the nanofibre diameter by a Monte Carlo simulation technique. (sciencedom.com)
- Iijima, S.: Helical microtubules of graphitic carbon. (springer.com)
- The obtained nanofibers were almost uniform and uniaxially aligned with their longitudinal axes oriented randomly and no entanglement was observed between them. (deepdyve.com)
- Carbon fibers have several advantages including high stiffness, high tensile strength, low weight, high chemical resistance, high temperature tolerance and low thermal expansion. (wikipedia.org)
- Oxide and carbon based thin films for electronics and sustainable energy. (springer.com)