• Fe/Mn mixed metal oxides were synthesized facilely by a grinding method and were characterized by TEM, XRD, XPS, and BET. The characterization results revealed that mixed metal oxides were mainly composed of not highly crystallized Fe 2 O 3 and Mn 3 O 4 nanoparticles with a diameter about 3-5 nm. (hindawi.com)
  • Now, several researchers have focused on metal oxide nanoparticles and their composites for their high BET surface areas and fast adsorption kinetics when subjecting to the treatment of chromium from waste water. (hindawi.com)
  • However, the synthesis of complex metal oxide nanowires and nanoparticles is notoriously problematic due to the difficulty of controlling homogeneity and achieving the correct stoichiometry. (bl.uk)
  • This test method describes the determination of the as administered surface area of airborne metal oxide nanoparticles in inhalation exposure chambers for inhalation toxicology studies. (astm.org)
  • The test method permits the use of any modern commercial krypton adsorption instruments but strictly defines the sample collection, outgassing, and analysis procedures for metal and metal oxide nanoparticles. (astm.org)
  • Concern exists that zinc oxide nanoparticles being currently produced may, if inhaled, cause MFF. (cdc.gov)
  • We study both surface-supported metal element nanoparticles, oxide films, and transition metal complexes. (lu.se)
  • Quantum chemical investigations of semiconductor nanomaterials and surfaces, including first principles atomistic calculations of pure and sensitized transition metal oxide (MOx) wide bandgap semiconductor nanoparticles, as well as III-V nanostructured materials. (lu.se)
  • To assess the effect of adding zinc oxide nanoparticles to dental adhesives on their anti-microbial and bond strength properties. (bvsalud.org)
  • Incorporation of zinc oxide nanoparticles into dental adhesives increases their anti-microbial properties without affecting their bond strength. (bvsalud.org)
  • The purpose of this study was to assess the effect of adding zinc oxide nanoparticles to Single Bond dental adhesive on its antibacterial and bond strength properties. (bvsalud.org)
  • 3M ESPE, MN, USA) in the first group, Single Bond with 5% zinc oxide nanoparticles in the second group and Single Bond with 10% zinc oxide nanoparticles in the third group. (bvsalud.org)
  • Zinc oxide nanoparticles (Pishgaman Nano-Material Co., Mashhad, Iran) had an average particle size of 20 nm with a crystalline structure. (bvsalud.org)
  • Metal Oxide Nanostructures and Their Applications is the world's first multivolume reference covering a wide variety of advanced research and emerging developments in the field. (aspbs.com)
  • The book series cover theoretical and experimental aspects of metal oxide nanostructures dealing with materials design, modeling, synthesis, fabrication, processing, spectroscopy characterization, structure-property relationships and their device applications at nanoscale. (aspbs.com)
  • This 5 volume set is an unprecedented single reference source that provides an ideal introduction and overview of the recent advances on metal oxide nanostructures and their applications. (aspbs.com)
  • The interdisciplinary nature of research field of metal oxide nanostructures and their applications is reflected in each of the volumes of this book series. (aspbs.com)
  • The book series contains 71 state-of-the-art review chapters on various metal oxide nanostructures and their applications, thousands of literature references, illustrations, figures, tables and equations. (aspbs.com)
  • The book series are suitably divided into five volumes with topics ranging from growth to properties to applications of metal oxide nanostructures. (aspbs.com)
  • Volume 1: Growth and Properties Part-1 covers various theoretical and practical aspects of various metal oxide nanostructures. (aspbs.com)
  • Various crystal growth models and mechanisms for the formation of numerous metal oxide nanostructures have discussed in detail. (aspbs.com)
  • In addition to this, the state-of-the-art of defect chemistry, surface hydration chemistry, band-gap engineering of various metal oxide nanostructures have also been discussed. (aspbs.com)
  • Volume 3: Applications Part-1 is exclusively devoted on the metal oxide nanostructures based nanodevices, nanosensors, and energy applications. (aspbs.com)
  • Numerous theoretical and experimental aspects of metal oxide nanostructures used in the energy harvesting have been demonstrated. (aspbs.com)
  • Volume 4: Applications Part-2 consists of state-of-the-art review chapters on catalytic, field emission, non-volatile memory and tunneling devices and other general applications based on metal oxide nanostructures. (aspbs.com)
  • The ultimate goal will be an ability to predictably vary the dimensions of nanotubes -- and potentially other useful nanostructures -- employing different chemical process conditions across a broader range of metal oxide materials. (sciencedaily.com)
  • Sol-gel route is adoptable way to choose desired shape of the metal oxide (MO) nanostructures such as nanospheres, nanorods, nanoflakes, nanotubes, nanoribbons, nanospheres and nanofibers for shape-dependent applications and comparative accessibility. (intechopen.com)
  • In this chapter, we have discussed about the comprehensive ideas of sol-gel technique to synthesis metal oxide nanostructures. (intechopen.com)
  • Sol-gel process have been extensively explored for producing metal oxide nanostructures in the field of engineering and technological applications probably due to the controlled shape and size exhibited by the obtained products. (intechopen.com)
  • Moreover, the morphologies of the supported oxides on graphene with various dimensional nanostructures, such as one dimensional nanocrystals, two dimensional nanosheets/nanoplates and some special multidimensional frameworks are further reviewed. (rsc.org)
  • Schematic illustration of the synthesis of hollow binary oxide nanostructures. (advancedsciencenews.com)
  • 200 nm diameter Au contacts were fabricated by e-beam lithography on sputtered thin film vanadium oxide grown on conducting substrates and current perpendicular to plane electron transport measurements were performed with a conducting tip atomic force microscope. (harvard.edu)
  • MSHA has not adopted PELs for the following pneumoconiotic agents: tin oxide dust/fume, inorganic dusts of tin, insoluble tungsten dusts/fumes, and welding fumes (total particulate). (cdc.gov)
  • Metal fume fever. (cdc.gov)
  • Metal fume fever (MFF) is a benign, self-limited syndrome resulting from deposition of fine metal particulates in the alveoli. (cdc.gov)
  • Zinc oxide dust is considered relatively benign, whereas zinc oxide fume is considered more hazardous. (cdc.gov)
  • The environmental survey measured ambient air and breathing zone exposures to zinc-oxide (1314132), iron-oxide (1309371), and copper (7440508) fumes, manganese (7439965), carbon-monoxide (630080), nitrogen oxides, and ozone (10028156). (cdc.gov)
  • Thirteen of 21 noise exposure levels were found to exceed the NIOSH recommended standard of 85 decibels- A. The authors conclude that employees working in the heat exchanger welding area are not exposed to toxic levels of welding fumes, carbon-monoxide, nitrogen oxides, or ozone. (cdc.gov)
  • 2. Rapid onset of pulmonary edema (Makes nitrogen oxides, yellow-brown, less likely. (cdc.gov)
  • Super-Earth planets may have a form of liquid metal that makes magnesium oxide flow like water inside, allowing for magnetic fields that could shield life from space radiation. (space.com)
  • A new study suggests that the extreme pressures inside so-called super-Earth planets may create liquid magnesium oxide, a liquid metal, suggesting that similar processes may help create protective magnetic fields around the worlds. (space.com)
  • Now, researchers find that magnesium oxide, a common rocky mineral on Earth, can transform into liquid metal at the extreme pressures and temperatures found in super-Earths. (space.com)
  • What was most surprising was how well-behaved magnesium oxide is in the laboratory," said lead study author R. Stewart McWilliams, a geophysicist at the Carnegie Institution of Washington. (space.com)
  • The physical properties of magnesium oxide look very similar to what has been predicted for decades by theorists. (space.com)
  • This specification covers the requirements for magnesium oxide (MgO) and aluminum oxide (Al2O3) powders and crushable insulators used to manufacture metal-sheathed platinum resistance thermometers (PRTs), noble metal thermocouples, base metal thermocouples, and their respective cables. (astm.org)
  • The change in entropy (ΔS) for oxidation is negative (exothermic) for semi-metals, transition metals, alkali earth metals and lanthanides/actinides. (wikipedia.org)
  • Antimony ores are mined and then mixed with other metals to form antimony alloys or combined with oxygen to form antimony oxide. (cdc.gov)
  • Antimony oxide is added to textiles and plastics to prevent them from catching fire. (cdc.gov)
  • Based on metal oxides in combination with silicon and germanium, such single-walled inorganic nanotubes could be useful in a range of nanotechnology applications that require precise control over nanotube dimensions. (sciencedaily.com)
  • At the Georgia Institute of Technology, researchers are studying the formation of these metal oxide nanotubes to understand the key factors that drive the emergence of nanotubes with specific diameters and lengths from a "soup" of precursor chemicals dissolved in water. (sciencedaily.com)
  • Once the researchers fully understand the factors affecting the formation of nanotubes from aluminosilicogermanate materials, they hope to apply similar principles to other metal oxides. (sciencedaily.com)
  • Almost all metals form oxides and many of them form layered sheet-like oxides, so if one can coax them into nanotube form with dimensions comparable to single-walled carbon nanotubes, the range of useful properties would be great. (sciencedaily.com)
  • Binary metal oxide nanotubes are an important emerging class of materials because of their potential applications in many fields such as catalysis and ferroelectrics. (advancedsciencenews.com)
  • The researchers described an interfacial oxidation/reduction-directed synthesis of hollow binary oxide structures with different shapes (nanotubes and nanocubes) and compositions (Ce-MnO x , Co-MnO x and Ce-FeO x ). (advancedsciencenews.com)
  • Graphene based transition metal oxide nanocomposites have extensively been proven to be a type of promising highly efficient and economic nanocatalyst for optimizing the ORR to solve the world-wide energy crisis. (rsc.org)
  • This work aims to highlight the meaning of the multiphase establishment of graphene-based transition metal oxide nanocomposites and its structural-dependent ORR performance and mechanisms. (rsc.org)
  • They also envision that this method could be easily extended to fabricate other hollow binary oxide nanocomposites by choosing suitable templates and oxidation/reduction pairs. (advancedsciencenews.com)
  • An all-optical terahertz absorption technique for non-destructive characterization of nanometer-scale metal-oxide thin films grown on silicon substrates is described. (nist.gov)
  • In this thesis, we employ density functional theory (DFT) calculations to investigate nanoscale heterojunctions of transition metal oxide and silicon (Si), which are commonly used for photo/photoelectocatalytic and photovoltaic materials, respectively. (mit.edu)
  • Here, we introduce a combination of nanoscale self-assembled block-copolymer-based metal oxide masks with optimized deep reactive ion etching (DRIE) of silicon to permit the fabrication of porous topographies with aspect ratios of up to 50. (lu.se)
  • Most integrated circuits (ICs) and electronic components use silicon metal-oxide-semiconductor (CMOS) technology. (marketpublishers.com)
  • Here we design a suite of ligand-stabilized metal oxide clusters and find that these modulate carbon dioxide reduction pathways on a copper catalyst, enabling thereby a record activity for methane electroproduction. (nature.com)
  • Oxide films on copper, iron and AISI 304L stainless steel under aqueous solutions have been studied. (soton.ac.uk)
  • In this feature article, we concentrate on the recent leading works of different categories of introduced transition metal oxides on graphene: from the commonly-used classes (FeO x , MnO x , and CoO x ) to some rare and heat-studied issues (TiO x , NiCoO x and Co-MnO x ). (rsc.org)
  • TH40 combined with graphene oxide for the removal of metal ions from water. (bvsalud.org)
  • To the best of our knowledge the chemical, physical and toxicological properties of rhenium oxide have not been thoroughly investigated and recorded. (espimetals.com)
  • No toxic effects are known for rhenium metal. (espimetals.com)
  • Rhenium oxide decomposes in water. (espimetals.com)
  • Kinetics of the cross aldol condensation of valeraldehyde with cyclopentanone was investigated in a batch reactor under atmospheric pressure at 130 °C using heterogeneous metal modified oxides, such as CeO 2 -MgO, FeO-MgO, FeO-CaO as well as pristine CaO as catalysts. (springer.com)
  • Heterogeneous catalysts could facilitate a more environmentally benign way to produce chemicals, as for example in alkaline earth metal-transition metal oxide in biodiesel production [ 5 ], or in aldol condensation due to their easy separation and reuse. (springer.com)
  • In the present study, we would examine the diffusion of reactants and products in silica layers of the silica-coated Pt catalysts and the structure of the interface between silica layers and Pt metal particles in the catalysts. (go.jp)
  • First principles investigations of molecule-surface interactions, catalysts on solid surfaces, as well as multiscale simulations of heterogeneous catalysis involving mixed metal oxide surfaces. (lu.se)
  • Nonmetal oxides react with water to from acidic solutions. (purdue.edu)
  • The MSHA metal/nonmetal mining PELs for pneumoconiotic agents were adopted from the 1973 edition of the American Conference of Governmental Industrial Hygienists (ACGIH®) publication entitled TLVs® Threshold Limit Values for Chemical Substances in Workroom Air Adopted by ACGIH for 1973 . (cdc.gov)
  • When heated to decomposition zinc oxide may emit toxic fumes of ZnO. (espimetals.com)
  • First reported more than 150 years ago in connection with brass foundry work, MFF is primarily associated with the inhalation of zinc oxide fumes produced when zinc-coated (galvanized) steel or zinc-containing alloys (brass) are heated to high temperatures. (cdc.gov)
  • Working in closed spaces with poor ventilation, speed of metal cutting and arc ( welding ) time, and increasing thickness of metal in cutting operations all increase workers' exposure to metal fumes. (cdc.gov)
  • Fumes are produced when metal evaporates due to high heat and then condenses into small particles in the ambient air. (cdc.gov)
  • The scope of this Special Issue of Inorganics is focused on the synthesis, characterization and application of mixed-metal oxides and related materials, which are important in biomedicine, optoelectronics, catalysis, conservation and restoration of cultural heritage, and related industrial areas. (mdpi.com)
  • charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS), which measures light intensity and colour (using different filters) transmitted through the camera's lenses. (britannica.com)
  • Perovskite oxide interfaces have attracted tremendous research interest for their fundamental physics and promising all-oxide electronics applications. (arxiv.org)
  • Metal oxide adhesion is important for applications such as complementary metal oxide semiconductor devices. (wikipedia.org)
  • In this work, we design and synthesize a suite of ligand-stabilized cobalt oxide (CoO) nanoclusters. (nature.com)
  • We further interrogate electron and exciton dynamics at the metal-insulator interface of thin CsBr films grown on Cu(100). (aps.org)
  • This timeless jewelry features celestial motifs that are ethically made with sustainable stones, lab grown opals and recycled metals. (pdxpipeline.com)
  • With the possible exceptions of acute iron toxicity from intentional or unintentional ingestion and suspected lead toxicity , emergency physicians will rarely be alerted to the possibility of metal exposure. (medscape.com)
  • Yet, if unrecognized or inappropriately treated, heavy metal exposure can result in significant morbidity and mortality. (medscape.com)
  • Specific clinical manifestations vary according to the metal in question, the total dose absorbed, and whether the exposure was acute or chronic. (medscape.com)
  • Exposure to metals may occur through the diet, from medications, from the environment, or in the course of work or play. (medscape.com)
  • Where heavy metal toxicity is suspected, time taken to perform a thorough dietary, occupational, and recreational history is time well spent, since identification and removal of the source of exposure is frequently the only therapy required. (medscape.com)
  • A full dietary and lifestyle history may reveal hidden sources of metal exposure. (medscape.com)
  • 5.2 Test Methods B922 and C1274 and ISO 9277 and ISO 18757 exist for determination of the as produced surface area of bulk metal and metal oxide powders. (astm.org)
  • The strategies based on the degradation mechanisms for layered oxides cathode materials are also discussed for the future development and industrialized application. (materialstoday.com)
  • The formation reactions are chemical in nature, forming bonds between oxygen dimers and pure metals or metal alloys. (wikipedia.org)
  • At isothermic and isobaric conditions at atmosphere, the probability for a free metal surface to bind an oxygen dimer via oxidation is a function of the partial pressure of oxygen, the surface energy between the crystal and the liquid or vapor phase (see heat of formation), and time. (wikipedia.org)
  • The idea here is that oxygen is making a phase change from gas to solid, and at the same time a bond is forming between oxygen and a metal. (wikipedia.org)
  • This fact is due to the elevated surface energy of an exposed pure metal and the ability of the tiny oxygen dimer to attract to high energy sites. (wikipedia.org)
  • Compared with surface oxygen vacancies, which play a determining role on the insulator-metal transition of LaAlO3/SrTiO3 (001) interfaces, we find that surface La interstitials can be more experimentally realistic and accessible for manipulation and more stable in ambient atmospheric environment. (arxiv.org)
  • Activated carbon, processing high BET surface areas, was adopted as an adsorbent to remove the heavy metals and better adsorption efficiency was achieved [ 10 ]. (hindawi.com)
  • Thermochemical conversion of carbon oxides (CO and CO2) in combination with hydrogen to produce methanol in the presence of catalyst provides a pathway to close this carbon cycle. (tudelft.nl)
  • Wickes Red Oxide Metal Primer is an anti-corrosive primer suitable for use on ferrous metals non-ferrous metals and aluminium alloys. (diynot.com)
  • Canadian researchers develop a synthesis method for created hollow, structured binary metal oxides. (advancedsciencenews.com)
  • Although template-assisted synthesis based on interfacial reaction is one of the most effective approaches for preparing hollow, single metal oxide (MO x ) structures, this method is rarely employed for the synthesis of hollow binary metal oxide (M 1 -M 2 O x ) structures. (advancedsciencenews.com)
  • Now, a new, simple avenue for the general synthesis of hollow structured binary oxide has been reported by Guozhu Chen, Federico Rosei, and Dongling Ma from the Institut National de la Recherche Scientifique in Montreal, Canada. (advancedsciencenews.com)
  • I will present results of follow-up high-resolution transit observations of this fascinating planet and report on the plethora of metals, ions, and molecules we detect, and how the relative abundances we infer for these species compares with what we would predict from our knowledge of chemistry. (lu.se)
  • Layered oxide cathode material is considered as one of the most promising cathode materials for sodium-ion batteries due to its high energy density, rich variety, simple synthesis method and low environmental pollution. (materialstoday.com)
  • In the past years, the removal of heavy metals from industrial waste water streams has been widely studied due to the high threat of such pollutants to public health and environment [ 1 - 4 ]. (hindawi.com)
  • Srivastava [ 12 ] discovered that sawdust is effective for removal of hexavalent chromium and other heavy metals. (hindawi.com)
  • Many of the elements that can be considered heavy metals have no known benefit for human physiology. (medscape.com)
  • The toxicity of heavy metals depends on a number of factors. (medscape.com)
  • Zinc oxide dust which is not freshly formed is virtually innocuous. (espimetals.com)
  • By organizing precursor metal cations within a gel of the structural biopolymer alginate. (bl.uk)
  • We hope that this review will provide a basis for an accurate understanding of the structural evolution of layered oxides and provide some inspiration for the design and development of electrochemical systems with excellent performance. (materialstoday.com)
  • It is represented by the equation: W a d = γ m + γ o − γ m o {\displaystyle W_{ad}=\gamma _{m}+\gamma _{o}-\gamma _{mo}} where: Wad is the work of adhesion γm and γo are the respective surface energies of the metal and oxide γmo is the surface energy between the two materials in contact The following table gives some common metals and their corresponding surface energies. (wikipedia.org)
  • Developments in materials science, combining physics, chemistry, theory and even biosciences, have brought us to another level of understanding of properties of mixed-metal oxides. (mdpi.com)
  • One can get a large range of useful properties with metal oxide materials," Nair noted. (sciencedaily.com)
  • proposed the prototype batteries which used a sulfide and a Mg metal as the positive and negative electrode materials, respectively 1 . (nature.com)
  • Materials: Lead-free pewterin a brass oxide finish. (beadaholique.com)
  • This non-equilibrium wetting is an irreversible thermodynamic process that accounts for the changes of the chemical potential when forming a new boundary phase, such as an oxide. (wikipedia.org)
  • Owing to such wide and diverse application potentials of mixed-metal oxides, chemical routes for the preparation of pure and/or homogeneously doped different systems are highly desirable. (mdpi.com)
  • We use pulsed UV lasers to excite specific surface and bulk states of nano-structured metal oxides and measure velocities of desorbed atoms under controlled conditions. (aps.org)
  • By measuring O-atom kinetic energy distributions, as a function of laser frequency, we demonstrate exciton transport on the surface and in the bulk of metal-oxides. (aps.org)
  • Most recently, the term heavy metal has been used as a general term for those metals and semimetals with potential human or environmental toxicity. (medscape.com)
  • Regardless of how one chooses to define the category, heavy metal toxicity is an uncommon diagnosis. (medscape.com)
  • The toxicity of radioactive metals like polonium, which was discovered by Marie Curie but only recently brought to public attention after the 2006 murder of Russian dissident Alexander Litvinenko, relates more to their ability to emit particles than to their ability to bind cell proteins. (medscape.com)
  • Persons intentionally taking colloidal metals for their purported health benefits may ultimately develop toxicity. (medscape.com)
  • Metal toxicity may complicate some forms of drug abuse. (medscape.com)
  • Within supersized alien versions of Earth, a common transparent ceramic may become a flowing liquid metal, perhaps granting those distant worlds magnetic fields to shield life from harmful radiation, researchers say. (space.com)
  • McWilliams noted that much remains unknown about the physics of super-Earths, and that researchers need to generate computer models to see where and how this liquid metal might exist in nature. (space.com)
  • Cesium is a silvery white, soft, ductile metal with only one oxidation state (+1). (cdc.gov)
  • Antimony is a silvery-white metal that is found in the earth's crust. (cdc.gov)
  • For many decades we have usually imagined terrestrial planets - the Earth, its neighbors such as Mars, and distant super-Earths - as all having Earth-like properties: that is, they have a outer shell or mantle composed of nonmetallic oxides, and an iron rich core which is metallic and from which planetary magnetic fields originate," McWilliams told SPACE.com. (space.com)
  • Our results reveal the origin of metal-insulator transition in LaAlO3/SrTiO3 (110) heterostructures, and also shed light on the manipulation of the superior properties of LaAlO3/SrTiO3 (110) for new possibilities of electronic and magnetic applications. (arxiv.org)
  • These properties make cesium far more reactive than the other members of the alkali metal group. (cdc.gov)
  • Zinc oxide has innate antibacterial properties. (bvsalud.org)
  • Joe's supervisor remembered that the system for scanning incoming metal for radioactive material had been malfunctioning. (cdc.gov)
  • Wickes Universal Primer is a versatile water based formulation for interior and exterior use on wood metal (iron steel zinc) brick and hardboard. (diynot.com)