Porous Carbon–Silica Composites and Carbon Materials from Rice Husk: Production Technology, Texture, and Dispersity Full article
| Journal |
Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2013, Volume: 5, Number: 4, Pages: 350 - 357 Pages count : 8 DOI: 10.1134/S2070050413040065 | ||
| Tags | carbon materials, carbon-mineral composites, fluidized bed, rice husks, SAXS | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Council for Grants of the President of the Russian Federation | МК-4805.2011.3 |
Abstract:
A method based on carbonization in a fluidized-bed catalytic reactor is suggested for utilization of rice husks, which are hard-to-recycle waste from paddy production. The bottom ash resulting from carbonization at 465–600°C is a carbon–silica nanocomposite (C/SiO2) with a SiO2 content of 58.7–81.8 wt % and a specific surface area of SBET = 152–232 m2/g. Leaching of SiO2 with hydrofluoric acid yields porous carbon materials with a specific surface area of 165–494 m2/g and a SiO2 content of <1%. These materials have been characterized by small-angle X-ray scattering (SAXS), transmission electron microscopy, and X-ray diffraction. Particle size data for SiO2 in the carbon–silica nanocomposite have been obtained for the first time. As the carbonization temperature is raised from 465 to 600°C, the average particle size of silica increases from 5.5 to 8.1 nm. Development of the SAXS procedure for determining the size of silica particles in the carbon matrix would provide a promising tool for knowingly designing porous carbon materials with preset properties. The carbonization of rice husks in a fluidized catalyst bed is among the most promising methods of their conversion into C/SiO2 nanocomposites and porous carbon materials with the use of template synthesis approaches.
Cite:
Larichev Y.V.
, Eletskii P.M.
, Tuzikov F.V.
, Yakovlev V.A.
Porous Carbon–Silica Composites and Carbon Materials from Rice Husk: Production Technology, Texture, and Dispersity
Catalysis in Industry. 2013. V.5. N4. P.350 - 357. DOI: 10.1134/S2070050413040065 WOS Scopus РИНЦ OpenAlex
Porous Carbon–Silica Composites and Carbon Materials from Rice Husk: Production Technology, Texture, and Dispersity
Catalysis in Industry. 2013. V.5. N4. P.350 - 357. DOI: 10.1134/S2070050413040065 WOS Scopus РИНЦ OpenAlex
Original:
Ларичев Ю.В.
, Елецкий П.М.
, Тузиков Ф.В.
, Яковлев В.А.
Разработка технологии получения пористых углеродкремнеземных композитов и углеродных материалов из рисовой шелухи, исследование их текстурных и дисперсных характеристик
Катализ в промышленности. 2013. №2. С.72-79. РИНЦ ANCAN
Разработка технологии получения пористых углеродкремнеземных композитов и углеродных материалов из рисовой шелухи, исследование их текстурных и дисперсных характеристик
Катализ в промышленности. 2013. №2. С.72-79. РИНЦ ANCAN
Dates:
| Submitted: | Nov 21, 2012 |
| Published print: | Oct 1, 2013 |
| Published online: | Dec 17, 2013 |
Identifiers:
| Web of science: | WOS:000433667800009 |
| Scopus: | 2-s2.0-84891806158 |
| Elibrary: | 21466943 |
| OpenAlex: | W1988604320 |