Abstract
The methods of regulating the porous structure and properties of carbon materials of the Sibunit type are considered. The deposition to 10–15 wt % pyrolytic carbon in the pore space of Sibunit makes it possible to regulate pore volume and pore-size distributions by decreasing the fraction of micropores and small mesopores and to enhance the strength characteristics of the support. Heat treatment in an inert atmosphere in a temperature range of 2200–2600°C imparts a number of unique specific properties to the Sibunit supports, in particular, high resistance to oxidative and electrochemical corrosion, which is comparable with the resistance of graphite. At the same time, it retains sufficiently high pore structure characteristics and adsorption properties typical of porous carbon materials. The introduction of water-soluble organic compounds capable of producing microporous carbon upon carbonization at the stage of granulation or the supporting of organic compounds on Sibunit with the subsequent polymerization and carbonization in the support pores makes it possible to form micropores with a volume to 0.20–0.25 cm3/g in Sibunit.
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Original Russian Text © G.V. Plaksin, O.N. Baklanova, A.V. Lavrenov, V.A. Likholobov, 2014, published in Khimiya Tverdogo Topliva, 2014, No. 6, pp. 26–32.
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Plaksin, G.V., Baklanova, O.N., Lavrenov, A.V. et al. Carbon materials from the Sibunit family and methods for controlling their properties. Solid Fuel Chem. 48, 349–355 (2014). https://doi.org/10.3103/S0361521914060032
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DOI: https://doi.org/10.3103/S0361521914060032