Graphite-graphite oxide composite electrode for vanadium redox flow battery

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	Graphite-graphite oxide composite electrode for vanadium redox flow battery
	W. Y. Li; J. G. Liu; C. W. Yan
	2011
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	56 期号:14 页码:5290-5294
摘要	A graphite/graphite oxide (GO) composite electrode for vanadium redox battery (VRB) was prepared successfully in this paper. The materials were characterized with X-ray diffraction, X-ray photoelectron spectroscopy and scanning electron microscopy. The specific surface area was measured by the Brunauer-Emmett-Teller method. The redox reactions of [VO(2)](+)/[VO](2+) and V(3+)/V(2+) were studied with cyclic voltammetry and electrochemical impedance spectroscopy. The results indicated that the electrochemical performances of the electrode were improved greatly when 3 wt% GO was added into graphite electrode. The redox peak currents of [VO(2)](+)/[VO](2+) and V(3+)/V(2+) couples on the composite electrode were increased nearly twice as large as that on the graphite electrode, and the charge transfer resistances of the redox pairs on the composite electrode are also reduced. The enhanced electrochemical activity could be ascribed to the presence of plentiful oxygen functional groups on the basal planes and sheet edges of the GO and large specific surface areas introduced by the GO. (C) 2011 Elsevier Ltd. All rights reserved.
部门归属	[li, wenyue; liu, jianguo; yan, chuanwei] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;yan, cw (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china;cwyan@imr.ac.cn
关键词	Vanadium Redox Battery Graphite Oxide Composite Electrode Electrochemical Activity Carbon Electrodes Transfer Kinetics Graphene Storage
URL	查看原文
WOS记录号	WOS:000291907300053
引用统计	被引频次：120[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30488
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Y. Li,J. G. Liu,C. W. Yan. Graphite-graphite oxide composite electrode for vanadium redox flow battery[J]. Electrochimica Acta,2011,56(14):5290-5294.
APA	W. Y. Li,J. G. Liu,&C. W. Yan.(2011).Graphite-graphite oxide composite electrode for vanadium redox flow battery.Electrochimica Acta,56(14),5290-5294.
MLA	W. Y. Li,et al."Graphite-graphite oxide composite electrode for vanadium redox flow battery".Electrochimica Acta 56.14(2011):5290-5294.