Abstract
Using the anodic oxidation of graphite in Fe(NO3)3-HNO3 mixed electrolytes, followed by heat treatment, we obtained exfoliated graphite modified with iron oxides. All of the samples obtained were characterized by X-ray diffraction, Mössbauer spectroscopy, and scanning electron microscopy. The results demonstrate that the proposed approach allows one to produce exfoliated graphite containing up to 14% Fe in the form of oxides and hydroxides, whose composition depends on the exfoliation temperature.
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Yasuda, E., Inagaki, M., Kaneko, K., et al., Carbon Alloys: Novel Concept to Develop Carbon Science and Technology, Amsterdam: Elsevier, 2003.
Furdin, G., Exfoliation Process and Elaboration of New Carbonaceous Materials, Fuel, 1998, vol. 77, pp. 479–485.
Toyoda, M. and Inagaki, M., Heavy Oil Sorption Using Exfoliated Graphite, Carbon, 1999, vol. 38, pp. 199–210.
Ischenko, E.V., Matzui, L.Y., Gayday, S.V., et al., Thermo-Exfoliated Graphite Containing CuO/Cu2(OH)3NO3:(Co2+/Fe3+) Composites: Preparation, Characterization and Catalytic Performance in CO Conversion, Materials, 2010, vol. 3, pp. 572–584.
Mitra, S., Lokesh, K.S., and Sampath, S., Exfoliated Graphite-Ruthenium Oxide Composite Electrodes for Electrochemical Supercapacitors, J. Power Sources, 2008, vol. 185, pp. 1544–1549.
Skowronski, J.M., Krawczyk, P., and Rozmanowski, T., Electrochemical Behavior of Exfoliated NiCl2-Graphite Intercalation Compound Affected by Hydrogen Sorption, Energy Convers. Management, 2008, vol. 49, pp. 2440–46.
Beguin, F. and Frackowiak, E., Electrochemical Synthesis of Iron Supported on Exfoliated Graphite, J. Phys. Chem. Solids, 1996, vol. 57, pp. 841–847.
Urbaniak, J., Skowronski, M., and Olejnik, B., Preparation of Fe2O3-Exfoliated Graphite Composite and Its Electrochemical Properties Investigated in Alkaline Solution, J. Solid State Electrochem., 2010, vol. 14, pp. 1629–1635.
Huan, Z., Zhao-hui, J., Lu, H., and Cheng-hua, Q., Synthesis of Nanoscale Zero-Valent Iron Supported on Exfoliated Graphite for Removal of Nitrate, Trans. Nonferrous Met. Soc. China, 2006, vol. 16, pp. 345–349.
Shornikova, O.N., Sorokina, N.E., and Avdeev, V.V., The Effect of Graphite Nature on the Properties of Exfoliated Graphite Doped with Nickel Oxide, J. Phys. Chem. Solids, 2008, vol. 69, pp. 1168–1170.
Beck, F. and Jiang, J., Potential Oscillation during Galvanostatic Overoxidation of Graphite in Aqueous Sulphuric Acids, J. Electroanal. Chem., 1995, vol. 389, pp. 161–165.
Music, S., Virtes, A., Simmons, G.W., et al., Mossbauer Spectroscopic Study of the Formation of Fe(III) Oxyhydroxides and Oxides by Hydrolysis of Aqueous Fe(III) Salt Solutions, J. Colloid Interface Sci., 1982, vol. 85, pp. 256–266.
Rodriguez, A.M. and Jimenez, P.V., Thermal Decomposition of the Graphite Oxidation Products, Thermochim. Acta, 1984, vol. 78, pp. 113–122.
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Original Russian Text © M.A. Lutfullin, O.N. Shornikova, K.V. Pokholok, N.E. Sorokina, V.V. Avdeev, 2012, published in Neorganicheskie Materialy, 2012, Vol. 48, No. 12, pp. 1340–1347.
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Lutfullin, M.A., Shornikova, O.N., Pokholok, K.V. et al. Preparation and properties of exfoliated graphite modified with iron compounds. Inorg Mater 48, 1175–1182 (2012). https://doi.org/10.1134/S0020168512120035
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DOI: https://doi.org/10.1134/S0020168512120035