Bifunctional redox flow battery-1 V(III)/V(II)-glyoxal(O-2) system | |
Wen, Y. H.1; Cheng, J.1,2; Ma, P. H.3; Yang, Y. S.1,2 | |
刊名 | electrochimica acta |
2008-03-20 | |
卷号 | 53期号:9页码:3514-3522 |
关键词 | bifunctional redox flow battery organic electro-synthesis glyoxal V(III)/V(II) separator |
英文摘要 | bifunctional redox flow batteries (brfb) possess functions of both electricity storage and electrochemical preparation, having the potential for increasing the electrical energy utilization. a v(iii)/v(ii)-glyoxal(o-2) system has been developed. separators of the brfb play a key role in brfb performance. a nation solution was sprayed on a gas diffusion layer (gdl) at the nafion loading of 2 mg cm(-2), and the gdl was then hot-pressed onto a nafion 115 cation exchange membrane, obtaining a modified separator. this separator not only prevents the crossover of vanadium but also has favorable conductivity, obtaining optimal charge and organic electro-synthesis performance of the brfb. the effects of the concentrations of glyoxal and hcl on the performance of brfb were also investigated. it is shown that the optimal concentration of glyoxal and hcl should be 1.2 and 3 m, respectively. as a result, the current efficiency of organic electro-synthesis is further increased. an acceptable discharge performance is achieved for a period exceeding 20 h at the current density of 20 ma cm(-2). the average discharge voltage of 0.73 v and the coulombic efficiency of 66% are obtained. it is demonstrated that the principle of the brfb is feasible. however, further experiments are needed to improve the performance. (c) 2007 elsevier ltd. all rights reserved. |
WOS标题词 | science & technology ; physical sciences |
类目[WOS] | electrochemistry |
研究领域[WOS] | electrochemistry |
关键词[WOS] | photovoltaic systems ; exchange membranes ; energy analysis ; transport |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000254375600010 |
公开日期 | 2015-11-17 |
内容类型 | 期刊论文 |
源URL | [http://159.226.238.44/handle/321008/140941] |
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.Res Inst Chem Def, Beijing 100083, Peoples R China 2.Beijing Univ Sci & Technol, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Full Cell R&D Ctr, Dalian 116023, Peoples R China |
推荐引用方式 GB/T 7714 | Wen, Y. H.,Cheng, J.,Ma, P. H.,et al. Bifunctional redox flow battery-1 V(III)/V(II)-glyoxal(O-2) system[J]. electrochimica acta,2008,53(9):3514-3522. |
APA | Wen, Y. H.,Cheng, J.,Ma, P. H.,&Yang, Y. S..(2008).Bifunctional redox flow battery-1 V(III)/V(II)-glyoxal(O-2) system.electrochimica acta,53(9),3514-3522. |
MLA | Wen, Y. H.,et al."Bifunctional redox flow battery-1 V(III)/V(II)-glyoxal(O-2) system".electrochimica acta 53.9(2008):3514-3522. |
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