Results 211 to 220 of about 5,046 (257)

Preparation and Characteristics of Expanded Graphite

Advanced Materials Research, 2011
Expanded graphite (EG) was prepared using fine flake graphite that could go through 50 mesh as raw material, perchloric acid as inserting agent and concentrated nitric acid as oxidant. The effects of amount of raw materials, reaction time and reaction temperature on expanded volume and sorption capacity of EG were studied, and microstructure of EG were
Yan Feng Yang, Xue Jun Zhang, Xiao Xu
openaire   +1 more source

Colloidal-Graphite Suspension Based on Thermally Expanded Graphite

Russian Journal of Physical Chemistry B
Currently, modified oxidized (intercalated) graphites and thermally expanded graphites obtained from them are used in solving many applied problems. This is due to the fact that while retaining all the properties of layered graphite compounds, split graphite particles have important new properties, such as ease of molding, low bulk density, and active ...
openaire   +1 more source

Surface area of compressed expanded graphite

Carbon, 2002
In a previous work [Carbon (2002) in press], the densification of expanded graphite was modelled. This very light material consists of worm- or accordion-like particles in a loose packing. Worm-like particles are made up of thin disc-shaped graphite sheets, and the average disorientation angle of the thin discs was estimated based on the excluded ...
A. Celzard, J.F. Marêché, G. Furdin
openaire   +1 more source

Expandable graphite modification by boric acid

Journal of Materials Research, 2012
Abstract
Makhsud I. Saidaminov, Natalia V. Maksimova, Viktor V. Avdeev   +2 more
openaire   +1 more source

Intercalation of CuCl2 into expanded graphite

Carbon, 1997
In this study, we have successfully synthesized CuCl 2 -GIC flakes with a particle size 0,5-2 mm by using expanded graphite. A chloride of lower Cl 2 pressure might also intercalate into graphite.
X. Chuan, D. Chen, X. Zhou
openaire   +1 more source

Effect of Expansion Temperature of Expandable Graphite on Anti-Friction Effect of Graphite Nonasheets from Sonicating Expanded Graphite

Applied Mechanics and Materials, 2011
Three graphite nanosheets were prepared by sonicating three expanded graphites that were formed by rapidly heating expandable graphite at 600, 800 and 1000 °C, respectively. The graphite nanosheets were characterized by scanning electron microscope. The anti-friction effects of the graphite nanosheets used as lubricating additives were investigated ...
openaire   +1 more source

HDPE/expanded graphite electrically conducting composite

Composite Interfaces, 2004
In this study, HDPE/expanded graphite electrically conducting composites were prepared in the presence of expanded graphite (EG) via a melt-blending process. The microstructure, electrical, mechanical and thermal properties of the resulting HDPE/EG composites were investigated. The experimental results revealed that EG could be dispersed in the form of
Wen-Gui Weng, Guo-Hua Chen, Da-Jun Wu, Wen-Li Yan   +3 more
openaire   +1 more source

Effect of Expanded Graphite Lattice in Exfoliated Graphite Nanofibers on Hydrogen Storage

The Journal of Physical Chemistry B, 2005
A graphite exfoliation technique, using intercalation of a concentrated sulfuric/nitric acid mixture followed by a thermal shock, has successfully exfoliated a herringbone graphite nanofiber (GNF). The exfoliated GNF retains the overall nanosized dimensions of the original GNF, with the exfoliation temperature determining the degree of induced defects,
Angela D, Lueking, Ling, Pan, Deepa L, Narayanan, Caroline E B, Clifford   +3 more
openaire   +2 more sources

Expanded Graphite-Polyurethane Foams for Water–Oil Filtration

ACS Applied Materials & Interfaces, 2019
Herein, expanded graphite is successfully combined with waterborne polyurethane to develop porous foams with underwater oleophobic properties for the separation of surfactant-free, oil-in-water mixtures and emulsions. To obtain foams with different pore sizes and therefore with different performances in the oil-water filtration process, two solvent ...
Lía Vásquez, Laura Campagnolo, Athanassia Athanassiou, Despina Fragouli   +3 more
openaire   +2 more sources

Nickel/Carbon composite materials based on expanded graphite

New Carbon Materials, 2011
Abstract Monolithic nickel/carbon (Ni/C) composites were prepared from coal tar pitch-impregnated compressed expanded graphite pre-decorated with NiO particles (EGNiO) by pyrolysis at 550 °C and subsequent steam activation at 800 °C. The microstructural arrangement of the Ni-comprising nanoparticles in the composites was investigated using ...
Afanasov, I.M., Lebedev, Oleg, Kolozhvary, B.A., Smirnov, A.V,, Van Tendeloo, Gustaaf   +4 more
openaire   +2 more sources