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*  Carbon - Wikipedia
Graphite. Main article: Graphite. Commercially viable natural deposits of graphite occur in many parts of the world, but the ... It is present as a powder, and is the main constituent of substances such as charcoal, lampblack (soot) and activated carbon. ... The atoms of carbon can bond together in different ways, termed allotropes of carbon. The best known are graphite, diamond, and ... Amorphous is used for lower value graphite products and is the lowest priced graphite. Large amorphous graphite deposits are ...
  https://en.wikipedia.org/wiki/Carbonaceous
*  Recent Developments of Nanostructured Electrodes for Bioelectrocatalysis of Dioxygen Reduction
For pristine SWCNTs, four main peaks should be present in the Raman spectrum: D, G, G′ and a low frequency peak (. , 300 cm−1 ... RBM corresponds to the symmetric in-phase displacements of all carbon atoms in SWCNT in the radial direction and its frequency ... O. Lazarus, T. W. Woolerton, A. Parkin et al., "Water-gas shift reaction catalyzed by redox enzymes on conducting graphite ... The last two main bands present in SWCNTs Raman spectrum are the disorder-induced D band (at ~1350 cm−1) and its overtone, the ...
  https://www.hindawi.com/journals/apc/2011/947637/
*  Structural and Electronic Properties of Low-Dimensional C-Nanoassemblies and Possible Analogues for Si (and Ge)
B and N atoms), either in pairs [14, 15] or with all three different types of atoms present, and second to gain understanding ... The similarities among graphite and other sp2-like bonded materials such as hexagonal boron nitride and boron-carbon-nitrogen ... While their main objective was to examine theoretically, as chemical bonds were stretched, whether there would be a Coulson- ... 13], the B12 clusters were surrounded by just two layers of C atoms. Then H atoms, as mentioned above, are added at the ...
  https://www.hindawi.com/journals/jnm/2011/932350/
*  Carbon - Wikipedia
It is present as a powder, and is the main constituent of substances such as charcoal, lampblack (soot) and activated carbon. ... The atoms of carbon can bond together in different ways, termed allotropes of carbon. The best known are graphite, diamond, and ... Amorphous is used for lower value graphite products and is the lowest priced graphite. Large amorphous graphite deposits are ... For example, graphite is opaque and black while diamond is highly transparent. Graphite is soft enough to form a streak on ...
  https://en.wikipedia.org/wiki/Carbon
*  Crystallographic defects in diamond - Wikipedia
... nitrogen impurity originates from the atmosphere or from the graphite source. One nitrogen atom per 100,000 carbon atoms will ... The four main nitrogen forms are as follows: The C center corresponds to electrically neutral single substitutional nitrogen ... Voidites are octahedral nanometer-sized clusters present in many natural diamonds, as revealed by electron microscopy. ... Because the nitrogen atoms have five available electrons (one more than the carbon atoms they replace), they act as "deep ...
  https://en.wikipedia.org/wiki/Crystallographic_defects_in_diamond
*  Graphite furnace atomic absorption - Wikipedia
... the amount of light absorbed can be linearly correlated to the concentration of analyte present. Free atoms of most elements ... The main advantages of the graphite furnace comparing to aspiration atomic absorption are the following: The detection limits ... In GFAAS, samples are deposited in a small graphite or pyrolytic carbon coated graphite tube, which can then be heated to ... and nonuniformity of concentration and path length of analyte atoms (in graphite furnace AA). Concentration measurements are ...
  https://en.wikipedia.org/wiki/Graphite_furnace_atomic_absorption
*  First Direct Chemical Analysis of Interstellar Dust, by Krueger and Kissel
Graphite grains or those constituted by very large PAH's, if at all present, would be hindered from entering the inner solar ... atoms) indicates graphite or large PAH's (Polyaromatic hydrocarbons) with little contribution of hydrogen in ion formation. ... Its main task in January 2004 is sampling cometary dust by aerogel plates made from silicon dioxide of very low density (approx ... The main basis mass numbers are thus odd, especially with the 3rd and 5th impact: with these particles nitrogen apparently ...
  https://panspermia.org/kissel.htm
*  Water for Atomic Absorption | Application | Water Purification | Merck
The graphite furnace is a much more efficient atomizer because all of the analyte is atomize and the atoms are retained within ... or graphite furnace (GFAA). The main purpose of the monochromator in the AA instrument is to isolate the absorption line from ... AA is used to determine the amount of catalyst present in that final product. In the manufacturing industry, many raw materials ... The samples are usually liquids or solids, so the analyte atoms or ions must be vaporized in a flame or graphite furnace. If ...
  http://www.merckmillipore.com/INTL/en/water-purification/learning-centers/applications/inorganic-analysis/atomic-absorption/MTWb.qB.3_MAAAFAC8UQWTrQ,nav
*  Graphite Oxide-TiO2 Nanocomposite Type Photocatalyst for Methanol Photocatalytic Reforming Reaction | Springer for Research &...
... composite materials were prepared by heterocoagulation method from Brodie's graphite-oxide (GO) in order to test them as ... The other main feature around 286.2 eV is due to carbon atoms singly bonded to oxygen, such as in sp2 or sp3 C-OH or C-O-C in ... 3C) fit to the characteristic spectrum of TiO2 [62]. In the composites water could be present related to TiO2 by adsorption and ... Graphite-oxide/TiO2 (GO/TiO2) composite materials were prepared by heterocoagulation method from Brodie's graphite-oxide (GO) ...
  https://rd.springer.com/article/10.1007%2Fs11244-018-0989-z
*  Organic compound - Wikipedia
... are also excluded automatically the allotropes of carbon such as diamond and graphite, because they are formed by atoms of the ... The main tools are proton and carbon-13 NMR spectroscopy, IR Spectroscopy, Mass spectrometry, UV/Vis Spectroscopy and X-ray ... covers the scientific literature from 1771 to the present, and is today accessible via Reaxys. Structures and a large diversity ... those natural products with large or stereoisometrically complicated molecules present in reasonable concentrations in living ...
  https://en.wikipedia.org/wiki/Organic_compound
*  Patente US4953234 - Impact resistant helmet - Google Patentes
The present invention is an impact resistant composite and helmet made thereof. The helmet comprises an impact resistant ... that may contain minor amounts of chain branching or comonomers not exceeding 5 modifying units per 100 main chain carbon atoms ... The present invention is directed to a helmet 10 comprising an impact resistant composite shell 12. The design of the present ... Such fibers include but are not limited to asbestos, carbon, graphite, boron, cellulose, alumina, and metal fibers. ...
  http://www.google.es/patents/US4953234?dq=flatulence
*  Procedures and Properties for a Direct Nano-Micro Integration of Metal and Semiconductor Nanowires on Si Chips
In present case the cracks are formed in a rectangular strip of 10 μm width, 200 μm length, and ~700 nm height in the ... The main steps involved in thin film fracture (TFF) approach are described below in Figure 3. The photoresist is deposited ( ... Addition of graphite powder helps to reduce the decomposition temperature of ZnO via chemical reaction [16, 17]. The ceramic ... and Zn vapor atoms are transported by the carrier gas (oxygen and Ar mixture) to the substrates carrying catalytic particles. ( ...
  https://www.hindawi.com/journals/jnt/2012/325732/
*  Patent US6835332 - Process for producing an electrode material for a rechargeable lithium ... - Google Patents
... graphite capable of intercalating lithium ion at intercalation sites of its six-membered network plane provided by carbon atoms ... In the present invention, these compounds can be used either singly or in combination of two or more of the as the compound (a ... 8(1). And there were observed two main peaks one at 2θ=30.2 and another at 2θ=43.6 in the X-ray diffraction chart, having a ... In the present invention, these compounds can be used either singly or in combination of two or more of them as the compound (b ...
  http://www.google.co.uk/patents/US6835332
*  organic chemistry facts, information, pictures | Encyclopedia.com articles about organic chemistry
Graphite, for instance, is just a series of "sheets" of carbon atoms bonded tightly in a hexagonal, or six-sided, pattern, ... The simplest member of the alkane series is methane, CH4, the main component of natural gas. The names of some alkanes are ... These are the hydrocarbons, present in deposits of fossil fuels: natural gas, petroleum, and coal. ... Carbon atoms form strong bonds not only with other carbon atoms but also with atoms of other elements. In addition to hydrogen ...
  https://www.encyclopedia.com/science-and-technology/chemistry/organic-chemistry/organic-chemistry
*  Electronic Properties of Transition Metal Dichalcogenides and Their Intercalation Complexes | SpringerLink
... complexes belong to a large class of the so-called two-dimensional solids in which there is a good deal of interest at present ... Atoms within a layer are bound by strong covalent or ionic forces while individual layers are held together by relatively much ... Dresselhaus, M.S., Dresselhaus, G., Fischer, J.E. and Moran, M.J., 1983, Materials Research Society, Intercalated graphite: ... Skip to main content This service is more advanced with JavaScript available, learn more at http://activatejavascript.org ...
  https://link.springer.com/chapter/10.1007/978-1-4757-5556-5_2
*  US Patent # 9,819,006. Battery - Patents.com
First, to facilitate understanding of the present disclosure, a technical background related to the present disclosure will be ... It may be more desirable to use one including at least a compound in which a part or all of replaceable hydrogen atoms of the ... In the analysis of the waveform, the position of a main peak existing closer to the lowest binding energy is used as an energy ... In particular, graphite may be desirable because of its large electrochemical equivalent and capability of providing high ...
  http://patents.com/us-9819006.html
*  Oxohalide - Wikipedia
... pπ bonding between the metal and oxygen atoms. Oxygen bridges are present in more complex configurations like M(cp)2(OTeF5)2 (M ... They have the general formula AOmXn, X = F, Cl, Br, I. The element A may be a main group element, a transition element or an ... This layered, graphite-like structure results in a relatively low hardness of bismoclite (Mohs 2-2.5) and most other oxohalide ... In relation to the oxide or halide, for a given oxidation state of an element A, if two halogen atoms replace one oxygen atom, ...
  https://en.wikipedia.org/wiki/Oxohalide
*  Organic chemistry - Wikipedia
... and hydrogen atoms can either be notated explicitly or assumed to be present as implied by tetravalent carbon. The depiction of ... The other main classes are amino acids (monomer building blocks of peptides and proteins), carbohydrates (which includes the ... Using a laser to vaporize graphite rods in an atmosphere of helium gas, these chemists and their assistants obtained cagelike ... The principal constituent atoms of organic chemistry - hydrogen and carbon - exist naturally with NMR-responsive isotopes, ...
  https://en.wikipedia.org/wiki/Organic_chemistry
*  Intercalation Compounds of Graphite | SpringerLink
Intercalation compounds of graphite are of interest, both scienfically and technologically because of unusual properties that ... This paper will present intercalation compounds of graphite from the point of view of a quest for a synthetic material of high ... This structure, composed of atoms tightly bonded in loosely stacked planes, produces a two dimensionality that yields a high in ... Skip to main content This service is more advanced with JavaScript available, learn more at http://activatejavascript.org ...
  https://link.springer.com/chapter/10.1007/978-1-4684-3480-4_27
*  Transmission Electron Aberration-Corrected Microscope - Wikipedia
In the images of graphene-a single sheet of graphite-not only the atoms, but also the chemical bonds could be observed. A movie ... The project's main activity is design and application of a transmission electron microscope (TEM) with a spatial resolution ... N. Tanaka (2008). "Present status and future prospects of spherical aberration corrected TEM/STEM for study of nanomaterials". ... The filter makes it possible to select electrons scattered by specific chemical elements and so identify individual atoms in ...
  https://en.wikipedia.org/wiki/Transmission_Electron_Aberration-Corrected_Microscope
*  New spectroscopic technique may help zero in on Martian life - The Archaeology News Network
For example, graphite is composed of a very orderly arrangement of carbon atoms. The bonds between these carbon atoms vibrate ... A typical spectrum for a sample containing organic matter appears as a curve with two main peaks -- one wide peak, and a ... That is, the higher these sub-peaks, the more hydrogen is present -- an indication that the sample has been relatively less ... naturally, at a frequency that scientists can measure when they focus a laser beam on graphite's surface.. As atoms and ...
  https://archaeologynewsnetwork.blogspot.com/2016/09/new-spectroscopic-technique-may-help.html
*  transport chair: April 2011
However, unlayered graphene Could Definitely (hk0) hoops gets present in Any Root As to presolar graphite onions. transmitting ... The main compound of your Mobile phone consists of all the 222 atoms but is considerations to own benzene additional and more ... A Even further main concern would certainly State they experience should Put Help and advice Absolutely bootlegged to make use ... First, microcrystalline graphite Could be helped by a Honestly citrus combination of acidity And as well nitric acid. a number ...
  http://transportchair.blogspot.com/2011/04/
*  Pebble-bed reactor - Wikipedia
... density nonporous pyrolytic carbon The fission fuel is in the form of metal oxides or carbides Pyrolytic graphite is the main ... When the nuclear fuel increases in temperature, the rapid motion of the atoms in the fuel causes an effect known as Doppler ... Trying to restart the pebbles' movement by increasing gas flow led to stirring up of dust, always present in PBRs, which was ... When the graphite burns, fuel material could be carried away in smoke from the fire. Since burning graphite requires oxygen, ...
  https://en.wikipedia.org/wiki/Pebble-bed_reactor
*  Elastic recoil detection - Wikipedia
The difference in the energy δE2 of recoil atoms after collision when two types of atoms differ in their masses by a quantity ... One of the main advantages of silicon detectors is their simplicity. However, they have to be used with a so-called "range foil ... This method does not present the same issues, as those for the silicon detector. However, the throughput of TOF detectors is ... High levels of carbon contamination could be associated with beam excursions on the support, such as a graphite support. This ...
  https://en.wikipedia.org/wiki/Elastic_recoil_detection
*  Atomic spectroscopy - Wikipedia
The type of atoms present in a sample, or the amount of atoms present in a sample can be deduced from measuring these changes ... With the exception of flames and graphite furnaces, which are most commonly used for atomic absorption spectroscopy, most ... In the latter case, the main division is between optical and mass spectrometry. Mass spectrometry generally gives significantly ... The relationship between the concentration of atoms, the distance the light travels through the collection of atoms, and the ...
  https://en.wikipedia.org/wiki/Atomic_spectroscopy