Porosity Enhancement of Silicon Carbide by Preparation in Micro-Mesoporous Zeolite-Like Matrices

Heat treatment of carbon–silica composites derived from micro-mesoporous zeolite-like materials yields the β-modification of silicon carbide with adsorption characteristics much superior to those of analogs obtained using large-porous silica exotemplates (meso-cellular foams). The presence of a larg...

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Bibliographic Details
Published in:Theoretical and experimental chemistry 2017, Vol.52 (6), p.358-363
Main Authors: Shcherban, N. D., Filonenko, S. M., Yaremov, P. S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Heat treatment
Porosity
Porous materials
Semiconductors (Materials)
Silicon
Silicon carbide
Silicon carbides
Silicon dioxide
Zeolites
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Summary:Heat treatment of carbon–silica composites derived from micro-mesoporous zeolite-like materials yields the β-modification of silicon carbide with adsorption characteristics much superior to those of analogs obtained using large-porous silica exotemplates (meso-cellular foams). The presence of a large volume of relatively homogeneous mesopores, which permits us to achieve a close-to-stoichiometric C/SiO 2 ratio, accounts for the formation of silica carbide with well-developed porosity.
ISSN:0040-5760
1573-935X
DOI:10.1007/s11237-017-9490-1