Carbon paper coated with supported tungsten trioxide as novel electrode for all-vanadium flow battery

	Carbon paper coated with supported tungsten trioxide as novel electrode for all-vanadium flow battery
	Yao, Chuan 1,2; Zhang, Huamin 1; Liu, Tao 1; Li, Xianfeng 1; Liu, Zonghao 3
刊名	journal of power sources
	2012-11-15
卷号	218 页码:455-461
关键词	Vanadium redox flow battery Tungsten trioxide/super activated carbon Carbon paper Electrochemical performance Voltage efficiency
英文摘要	a novel carbon paper electrode coated with supported tungsten trioxide is developed to improve the carbon fiber's electrochemical performance toward the vanadium redox couples. super activated carbon supported tungsten trioxide (wo3/sac) is prepared via an impregnation method and characterized by x-ray diffraction and scanning electron microscopy. the electrochemical performance of the prepared electrode is evaluated with cyclic voltammetry and electrochemical impedance spectroscopy. results show that wo3/sac exhibits excellent electro-catalytic activity and kinetic reversibility toward the vanadium redox couples. by adding the wo3/sac, the charge transfer resistances for both the positive and the negative reactions are significantly reduced. using as prepared electrodes, the columbic efficiency (ce), voltage efficiency (ve) and energy efficiency (ee) of the vanadium redox flow battery at 50 ma cm(-2) are 94.5%, 85.2% and 80.5%, respectively, which are much higher than that of the cell assembled with pristine carbon paper electrodes. (c) 2012 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	chemical modification ; positive electrode ; redox reactions ; graphite felt ; performance ; systems ; cell
收录类别	SCI
语种	英语
WOS记录号	WOS:000309038100062
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/143051]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Dalian Rongke Power Co Ltd, Dalian 116025, Peoples R China
推荐引用方式 GB/T 7714	Yao, Chuan,Zhang, Huamin,Liu, Tao,et al. Carbon paper coated with supported tungsten trioxide as novel electrode for all-vanadium flow battery[J]. journal of power sources,2012,218:455-461.
APA	Yao, Chuan,Zhang, Huamin,Liu, Tao,Li, Xianfeng,&Liu, Zonghao.(2012).Carbon paper coated with supported tungsten trioxide as novel electrode for all-vanadium flow battery.journal of power sources,218,455-461.
MLA	Yao, Chuan,et al."Carbon paper coated with supported tungsten trioxide as novel electrode for all-vanadium flow battery".journal of power sources 218(2012):455-461.