Vanadium redox reactions and carbon electrodes for vanadium redox flow battery
1991; Elsevier BV; Volume: 36; Issue: 7 Linguagem: Inglês
10.1016/0013-4686(91)85108-j
ISSN1873-3859
AutoresHiroko Kaneko, Ken Nozaki, Yutaka Wada, Takamichi Aoki, Akira Negishi, Masayuki Kamimoto,
Tópico(s)Transition Metal Oxide Nanomaterials
ResumoThe redox reactions of vanadium ions in sulfuric ,acid, which are used for anolyte and catholyte in a redox flow battery, have been investigated on a GRC (graphite reinforcement carbon) electrode. Two types of carbon fiber electrodes (GF-20 and BW-309) have been evaluated for the battery electrode. As a result, the BW-309 was found to be the best. Cyclic voltammetry has been used to estimate electrode reaction rate constants of the ions on a GRC electrode and two carbon fiber electrodes and to determine the suitable concentration of sulfuric acid for vanadium redox reactions in the battery. A charge—discharge experiment of V—V system in 2 M (mol dm−3) sulfuric acid solution has also been carried out on the carbon cloth (BW-309) electrode.
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