Bifunctional redox flow battery - 2. V(III)/V(II)-L-cystine(O-2) system
文献类型：期刊论文
| 作者 | Wen, Y. H.; Cheng, J.1; Xun, Y.; Mac, P. H.2; Yanga, Y. S.1 |
| 刊名 | electrochimica acta
 |
| 出版日期 | 2008-08-20 |
| 卷号 | 53期号:20页码:6018-6023 |
| 关键词 | bifunctional redox flow batteries L-cystine organic electro-synthesis separator indirect oxygen electrode |
| 英文摘要 | a new bifunctional redox flow battery (brfb) system, v(iii)/v(ii)-l-cystine(o-2), was systematically investigated by using different separators. it is shown that during charge, water transfer is significantly restricted with increasing the concentration of hbr when the nafion 115 cation exchange membrane is employed. the same result can be obtained when the gas diffusion layer (gdl) hot-pressed separator is used. the organic electro-synthesis is directly correlated with the crossover of vanadium. when employing the anion exchange membrane, the electro-synthesis efficiency is over 96% due to a minimal crossover of vanadium. when the gdl hot-pressed separator is applied, the crossover of vanadium and water transfer are noticeably prevented and the electro-synthesis efficiency of over 99% is obtained. those impurities such as vanadium ions and bromine can be eliminated through the purification of organic electro-synthesized products. the purified product is identified to be l-cysteic acid by ir spectrum. the brfb shows a favorable discharge performance at a current density of 20 ma cm(-2). best discharge performance is achieved by using the gdl hot-pressed separator. the coulombic efficiency of 87% and energy efficiency of about 58% can be obtained. the cause of major energy losses is mainly associated with the cross-contamination of anodic and cathodic active electrolytes. (c) 2008 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 ; energy analysis |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257011400021 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140915]  |
| 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.Beijing Sci & Technol Univ, Res Inst Chem Def, Beijing 100083, Peoples R China 2.Dalian Inst Chem Phys, Chinese Acad Sci, Full Cell R&D Ctr, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, Y. H.,Cheng, J.,Xun, Y.,et al. Bifunctional redox flow battery - 2. V(III)/V(II)-L-cystine(O-2) system[J]. electrochimica acta,2008,53(20):6018-6023. |
| APA | Wen, Y. H.,Cheng, J.,Xun, Y.,Mac, P. H.,&Yanga, Y. S..(2008).Bifunctional redox flow battery - 2. V(III)/V(II)-L-cystine(O-2) system.electrochimica acta,53(20),6018-6023. |
| MLA | Wen, Y. H.,et al."Bifunctional redox flow battery - 2. V(III)/V(II)-L-cystine(O-2) system".electrochimica acta 53.20(2008):6018-6023. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。