Rice Husk Derived Micro-Mesoporous Carbon Materials as Active Components of Supercapacitor Electrodes Full article
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Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2018, Volume: 10, Number: 2, Pages: 173-180 Pages count : 7 DOI: 10.1134/S2070050418020125 | ||||
| Tags | activated carbon materials, rice husk, carbonization, supercapacitors, ionic liquids | ||||
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0016 |
Abstract:
Activated carbon materials (CM) were prepared from rice husk carbonized in the fluidized catalysts bed reactor. Textural characteristics of CM were studied by the adsorption of nitrogen at 77 K. Variation of synthesis conditions (conditions of carbonization and following activation) allowed to obtain materials with specific BET surface area from 440 to 2290 m2/g. Utilization of sodium or potassium carbonates results in the BET surface area up to 1200 m2/g. Activation by hydroxides of sodium or potassium yields the samples with the more developed surface up to 2290 m2/g. Electrochemical properties and capacitive characteristics were examined by cyclic voltammetry and chronopotentiometry in galvanostatic mode in aqueous electrolyte 1 M H2SO4 and ionic liquid BMIMBF4. It was shown, that at low charge/discharge rate (0.2 А/g) gravimetric capacitance depends linearly on specific surface of CM and does not depend on electrolyte nature. Insignificant (in the case of 1 М H2SO4) and significant (in the case of ionic liquid) decrease of specific capacitance is observed at high rates of charge/discharge (2 А/g), which is explained by influence of porous structure.
Cite:
Lebedeva M.V.
, Yeletsky P.M.
, Ayupov A.B.
, Kuznetsov A.N.
, Gribov E.N.
, Parmon V.N.
Rice Husk Derived Micro-Mesoporous Carbon Materials as Active Components of Supercapacitor Electrodes
Catalysis in Industry. 2018. V.10. N2. P.173-180. DOI: 10.1134/S2070050418020125 WOS Scopus РИНЦ OpenAlex
Rice Husk Derived Micro-Mesoporous Carbon Materials as Active Components of Supercapacitor Electrodes
Catalysis in Industry. 2018. V.10. N2. P.173-180. DOI: 10.1134/S2070050418020125 WOS Scopus РИНЦ OpenAlex
Original:
Лебедева М.В.
, Елецкий П.М.
, Аюпов А.Б.
, Кузнецов А.Н.
, Грибов Е.Н.
, Пармон В.Н.
Микро-мезопористые углеродные материалы из карбонизированной рисовой шелухи как активные компоненты электродов суперконденсаторов
Катализ в промышленности. 2017. Т.17. №6. С.534-542. DOI: 10.18412/1816-0387-2017-6-534-542 РИНЦ AN OpenAlex
Микро-мезопористые углеродные материалы из карбонизированной рисовой шелухи как активные компоненты электродов суперконденсаторов
Катализ в промышленности. 2017. Т.17. №6. С.534-542. DOI: 10.18412/1816-0387-2017-6-534-542 РИНЦ AN OpenAlex
Dates:
| Submitted: | Nov 14, 2017 |
| Published print: | Apr 1, 2018 |
| Published online: | Jul 5, 2018 |
Identifiers:
| Web of science: | WOS:000437444000013 |
| Scopus: | 2-s2.0-85049577108 |
| Elibrary: | 35747889 |
| OpenAlex: | W2861002855 |