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Preparation and Characteristics of Expanded Graphite
Advanced Materials Research, 2011Expanded 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
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Graining of thermo-expanded graphite
Materials Today: Proceedings, 2018Abstract The results of investigation of the process of graining thermo-expanded graphite in the epicyclic granulator have been presented. Procedure of graining and the sequence of grains’ formation have been described. It has been obtained the experimental dependencies of the grains’ fractional distribution and their strength against epicyclic ωρ ...
Elena Matygullina +6 more
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Absorption Process of Expanded Graphite
2010 4th International Conference on Bioinformatics and Biomedical Engineering, 2010Different expansion volume of expanded graphite was used for oil absorption experiments. The structure of expanded graphite was studied by scanning electron microscope (SEM) and optical microscope before oil-absorption and after oil-absorption. It was found that viscosity, expansion volume and particle size are the three key factors for the higher ...
Qi Lai +4 more
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Intercalation of CuCl2 into expanded graphite
Carbon, 1997In 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
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On lower-nitrogen expandable graphite
Materials Research Bulletin, 2000Abstract The intercalation reaction of a mixture of HNO 3 and acetic anhydride to form expandable graphite was investigated. Expandable graphites were prepared from the intercalation compounds (GICs) by rapid heating up to 900°C. The effects of reaction conditions on the quality of the expandable graphites were studied and the optimum conditions for
Song Kemin, Dun Huijuan
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The Study on the Preparation of Expanded Graphite by Fine Squama Graphite
Advanced Materials Research, 2010The experiment improved the synthetic methods of preparing expanded graphite, using the mixture of H2SO4 and HNO3 as the acid, KMnO4 as oxidizing agent and adopting chemical oxidization method to prepare the expanded graphite under the conditions of different temperature.
Min Jie Li, Qi Lai, Yu Feng Li
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Effect of Expanded Graphite Lattice in Exfoliated Graphite Nanofibers on Hydrogen Storage
The Journal of Physical Chemistry B, 2005A 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 +3 more
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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 ...
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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 ...
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Synthesis and studies of properties of graphite oxide and thermally expanded graphite
Protection of Metals and Physical Chemistry of Surfaces, 2014Graphite oxide is synthesized using various reaction parameters. Stagewise evaluation of graphite oxidation dynamics in the course of synthesis is carried out using the method of sample collection and thermogravimetric analysis. Thermally expanded graphite with high texture characteristics was obtained from graphite oxide.
A. G. Bannov +6 more
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Fabrication of polyethylene/graphite nanocomposite from modified expanded graphite
Polymer International, 2006AbstractA novel process was employed to fabricate a polymer/expanded graphite nanocomposite by modifying the conducting filler expanded graphite (EG) with unsaturated polyester resin (UPR). The modified expanded graphite (MEG) was prepared from EG in which the graphite nanosheets, already present in EG, were wrapped and isolated by the UPR during ...
Yinhui She, Guohua Chen, Dajun Wu
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