Results 241 to 250 of about 252,220 (294)
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Advanced Materials, 2021
AbstractA critical challenge for the application of graphite is low strength, which originates from the easy cleavage of graphite (0002) planes. Inspired by the burl strengthening mechanism observed in tree trunks, nanodiamond particles converted into graphite onions are used as “nanoburls” embedded in graphite (0002) lattice planes to eliminate the ...
Qinghua Zhang, Lin Gu, Wan Jiang
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AbstractA critical challenge for the application of graphite is low strength, which originates from the easy cleavage of graphite (0002) planes. Inspired by the burl strengthening mechanism observed in tree trunks, nanodiamond particles converted into graphite onions are used as “nanoburls” embedded in graphite (0002) lattice planes to eliminate the ...
Qinghua Zhang, Lin Gu, Wan Jiang
exaly +3 more sources
Journal of the American Chemical Society, 2008
Oxidation of graphite may be carried out by reaction with meta-chloroperoxybenzoic acid to yield graphite epoxide. Scanning tunneling microscopy (STM) showed that the functionalization occurs at the edges rather than on the basal plane of the graphite.
Jayanta, Chattopadhyay +8 more
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Oxidation of graphite may be carried out by reaction with meta-chloroperoxybenzoic acid to yield graphite epoxide. Scanning tunneling microscopy (STM) showed that the functionalization occurs at the edges rather than on the basal plane of the graphite.
Jayanta, Chattopadhyay +8 more
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Localizaed N2 adsorption on graphites, graphite oxides and exfoliated graphites
Materials Chemistry and Physics, 1989Abstract Two graphites were used to prepare the corresponding graphite oxides by the Staudenrnaier method. Exfoliated graphites were prepared by heating these graphite oxides in vacuum up to 368K and 448K. Samples were characterized by chemical analysis, X-ray diffraction and nitrogen adsorption at 77K and 90K. Following the method proposed by Pierce,
I. Bautista-Toledo, M.A. Ferro-Garcia
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Dynamical study of graphite and graphite intercalation compounds
Physical Review B, 1994We propose a very simple model of lattice dynamics of graphite and its intercalation compounds (GIC's): our model only uses five force constants for graphite, and seven for the GIC. It is used to calculate the dynamical matrix of the structure, and to obtain by matrix diagonalization the phonon vibration frequencies for each element of the first ...
, Lang +3 more
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A graphite foam reinforced by graphite particles
Carbon, 2007Graphite foam was obtained after carbonization and graphitization of a pitch foam formed by the pyrolysis of coal tar based mesophase pitch mixed with graphite particles in a high pressure and temperature chamber. The graphite foam possessed high mechanical strength and exceptional thermal conductivity after adding the graphite particles.
Zhu, Jiangjiang +6 more
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From Organic Matter to Graphite: Graphitization
Elements, 2014Organic compounds, which on Earth originate mainly through biological activity, are transformed under the physical conditions of Earth's crust, with the end product being graphite. In this graphitization process, they pass progressively and irreversibly through a wide variety of intermediate macrostructures and nanostructures before finally attaining ...
P. R. Buseck, O. Beyssac
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Journal of Materials Science, 1982
When a graphite intercalation compound [1] is heated past a critical temperature, a large expansion along the c-direction occurs, giving the compound a puffed-up appearance. This phenomenom is known as exfoliation. Ubbelohde [2] observed that graphite-Br2 exfoliated at 350°C from 3 mm to approximately 35 mm.
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When a graphite intercalation compound [1] is heated past a critical temperature, a large expansion along the c-direction occurs, giving the compound a puffed-up appearance. This phenomenom is known as exfoliation. Ubbelohde [2] observed that graphite-Br2 exfoliated at 350°C from 3 mm to approximately 35 mm.
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Memristive Behavior of a Graphite-Hydrogel-Graphite Nanodevice
ACS NanoIontronic nanofluidic memristors have garnered significant interest as promising platforms for mimicking energy-efficient neuromorphic functions by exploiting nonlinear ion transport in aqueous environments to emulate the signal transmission mechanisms of biological systems.
Chandan K. Das, Maria Fyta
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Magnetic Properties of Graphite and Graphitic Carbons
ChemInform, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
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Journal of Chemical Information and Computer Sciences, 2004
According to Zhu et al. the resonance energy/electron (REPE) in infinite graphite sheets is equal to 0.17 eV. In the present work the REPE was calculated for parallelogram-shaped graphite sheets (PSGSs). The number of Kekulé structures and contributions of benzene-like and naphthalene-like conjugated circuits were taken into account.
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According to Zhu et al. the resonance energy/electron (REPE) in infinite graphite sheets is equal to 0.17 eV. In the present work the REPE was calculated for parallelogram-shaped graphite sheets (PSGSs). The number of Kekulé structures and contributions of benzene-like and naphthalene-like conjugated circuits were taken into account.
openaire +2 more sources