Results 261 to 270 of about 209,722 (315)
Some of the next articles are maybe not open access.
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 ...
Kunpeng Lin +9 more
openaire +2 more sources
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 ...
Kunpeng Lin +9 more
openaire +2 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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
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.
openaire +1 more source
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.
openaire +1 more source
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
openaire +1 more source
Structural theory of graphite and graphitic silicon
Physical Review B, 1984The graphitic phases of C and Si are studied with the use of the pseudopotential local-density-functional approach. For graphite, good agreement with experiment is obtained for the in-plane lattice constant, interlayer spacing, isotropic bulk modulus, and graphite-diamond structural energy difference.
M. T. Yin, Marvin L. Cohen
openaire +1 more source
Compton Profiles of Graphite and Nanocrystalline Graphite
Chinese Physics Letters, 1996The Compton profiles of Polycrystalline graphite and nanometeric graphite produced by mill grinding were measured and the Compton profile of polycrystalline graphite was calculated. The theoretical and the experimental Compton profiles of polycrystalline graphite, the experimental Compton profiles of nanometeric graphite were compared.
Hai-ding Mo +5 more
openaire +1 more source

