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学科主题: 物理化学
题名: Anion-Conductive Membranes with Ultralow Vanadium Permeability and Excellent Performance in Vanadium Flow Batteries
作者: Mai, Zhensheng1, 2;  Zhang, Huamin1;  Zhang, Hongzhang1, 2;  Xu, Wanxing1, 2;  Wei, Wenping1, 2;  Na, Hui3;  Li, Xianfeng1
通讯作者: 张华民 ;  李先锋
关键词: electrochemistry ;  ion exchange ;  membranes ;  redox chemistry ;  vanadium
刊名: CHEMSUSCHEM
发表日期: 2013-02-01
DOI: 10.1002/cssc.201200561
卷: 6, 期:2, 页:328-335
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL17
项目归属: DNL17
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
资助者: 1,1
研究领域[WOS]: Chemistry
英文摘要: Anion exchange membranes prepared from quaternized poly-(tetramethyl diphenyl ether sulfone) (QAPES) were first investigated in the context of vanadium flow battery (VFB) applications. The membranes showed an impressive suppression effect on vanadium ions. The recorded vanadium permeability was 0.02 x 10(-7)-0.09 x 10(-7) cm(2)min(-1), which was two orders of magnitude lower than that of Nafion 115. The self-discharge duration of a VFB single cell with a QAPES membrane is four times longer than that of Nafion 115. The morphological difference in hydrophilic domains between QAPES and Nafion was confirmed by TEM. After soaking the membranes in VO2+ solution, adsorbed vanadium ions can barely be found in QAPES, whereas the hydrophilic domains of Nafion were stained. In the ex situ chemical stability test, QAPES showed a high tolerance to VO2+ and remained intact after immersion in VO2+ solution for over 250 h. The performance of a VFB single cell assembled with QAPES membranes is equal to or even better than that of Nafion 115 and remains stable in a long-term cycle test. These results indicate that QAPES membranes can be an ideal option in the fabrication of high-performance VFBs with low electric capacity loss.
关键词[WOS]: CATION-EXCHANGE MEMBRANES ;  ETHER ETHER KETONE) ;  ELECTRON-MICROSCOPY ;  COMPOSITE MEMBRANE ;  REDOX-BATTERY ;  NAFION ;  DIFFUSION ;  TRANSPORT ;  CELLS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000314659100014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119534
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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.Jilin Univ, Coll Chem, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China

Recommended Citation:
Mai, Zhensheng,Zhang, Huamin,Zhang, Hongzhang,et al. Anion-Conductive Membranes with Ultralow Vanadium Permeability and Excellent Performance in Vanadium Flow Batteries[J]. CHEMSUSCHEM,2013,6(2):328-335.
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