The electrochemical catalytic activity of single-walled carbon nanotubes towards VO2+/VO2+ and V3+/V2+ redox pairs for an all vanadium redox flow battery

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	The electrochemical catalytic activity of single-walled carbon nanotubes towards VO2+/VO2+ and V3+/V2+ redox pairs for an all vanadium redox flow battery
	W. Y. Li; J. G. Liu; C. W. Yan
	2012
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	79 页码:102-108
摘要	Single-walled carbon nanotube (SWCNT) was used as an electrode catalyst for an all vanadium redox flow battery (VRFB). The electrochemical property of SWCNT towards VO2+/VO2+ and V3+/V2+ was carefully characterized by cyclic voltammetric (CV) and electrochemical impedance spectroscopy (EIS) measurements. The peak current values for these redox pairs were significantly higher on the modified glassy carbon electrode compared with those obtained on the bare electrode, suggesting the excellent electrochemical activity of the SWCNT. Moreover, it was proved that the anodic process was more dependent on the surface oxygen of the SWCNT than the cathodic process through changing its surface oxygen content. Detailed EIS analysis of different modified electrodes revealed that the charge and mass transfer processes were accelerated at the modified electrode-electrolyte interface, which could be ascribed to the large specific surface area, the surface defects and the oxygen functional groups of the SWCNT. The enhanced battery performance effectively demonstrated that the SWCNT was suitable to serve as an electrode catalyst for the VRFB. (C) 2012 Elsevier Ltd. All rights reserved.
部门归属	[li, wenyue; liu, jianguo; yan, chuanwei] chinese acad sci, state key lab corros & protect, shenyang 110016, peoples r china.;yan, cw (reprint author), chinese acad sci, state key lab corros & protect, 62 wencui road, shenyang 110016, peoples r china.;cwyan@imr.ac.cn
关键词	Single-walled Carbon Nanotubes Electrochemical Catalytic Acitivity All Vanadium Redox Flow Battery Graphite Electrode Materials Chemical Modification Positive Electrode Felt Graphene Storage Oxide Ir
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WOS记录号	WOS:000307920300013
引用统计	被引频次：125[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/321006/60073
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. The electrochemical catalytic activity of single-walled carbon nanotubes towards VO2+/VO2+ and V3+/V2+ redox pairs for an all vanadium redox flow battery[J]. Electrochimica Acta,2012,79:102-108.
APA	W. Y. Li,J. G. Liu,&C. W. Yan.(2012).The electrochemical catalytic activity of single-walled carbon nanotubes towards VO2+/VO2+ and V3+/V2+ redox pairs for an all vanadium redox flow battery.Electrochimica Acta,79,102-108.
MLA	W. Y. Li,et al."The electrochemical catalytic activity of single-walled carbon nanotubes towards VO2+/VO2+ and V3+/V2+ redox pairs for an all vanadium redox flow battery".Electrochimica Acta 79(2012):102-108.