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Carbon paper coated with supported tungsten trioxide as novel electrode for all-vanadium flow battery
Yao, Chuan1,2; Zhang, Huamin1; Liu, Tao1; Li, Xianfeng1; Liu, Zonghao3
关键词Vanadium Redox Flow Battery Tungsten Trioxide/super Activated Carbon Carbon Paper Electrochemical Performance Voltage Efficiency
刊名JOURNAL OF POWER SOURCES
2012-11-15
DOI10.1016/j.jpowsour.2012.06.072
218页:455-461
收录类别SCI
文章类型Article
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
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.
语种英语
WOS记录号WOS:000309038100062
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143051
专题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.
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