期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 70, 期 -, 页码 47-50出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2016.06.018
关键词
Supercapacitor; Activated carbon; Diazonium salt; Oxocarbons; Grafting
资金
- Centre National de la Recherche Scientifique (CNRS-France)
- Universite d'Angers [ANR-13-PRGE-0011-02]
- Agence Nationale de la Recherche (ANR) [ANR-13-PRGE-0011] Funding Source: Agence Nationale de la Recherche (ANR)
A procedure for the grafting of oxocarbon compounds is proposed by condensation reaction with a benzenediamine to obtain an attached-phenazine moieties. A technical proof of concept is given by the covalent,capture of rhodizonic acid on the Norit activated carbon and potentiality for supercapacitors is evidenced. The composite material obtained was tested as positive electrode for aqueous supercapacitors in 1 M H2SO4. The redox activity covering a wide range of potential gives an unprecedented increase in specific charge of 350% and a specific energy at the discharge 3.4 times higher than the unmodified carbon. (C) 2016 Elsevier B.V. All rights reserved.
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