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题名: Self-humidifying Cs2.5H0.5PW12O40/Nafion/PTFE composite membrane for proton exchange membrane fuel cells
作者: Li, MQ;  Shao, ZG;  Zhang, HM;  Zhang, YM;  Zhu, XB;  Yi, BL
刊名: ELECTROCHEMICAL AND SOLID STATE LETTERS
发表日期: 2006
DOI: 10.1149/1.2154373
卷: 9, 期:2, 页:A92-A95
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Materials Science, Multidisciplinary
研究领域[WOS]: Electrochemistry ;  Materials Science
英文摘要: A Cs2.5H0.5PW12O40/Nafion/polytetrafluoroethylene (PTFE) self-humidifying composite membrane was developed for proton exchange membrane fuel cells. It was prepared by recasting the Cs2.5H0.5PW12O40/Nafion self-humidifying layer onto the two sides of a Nafion/PTFE composite membrane with a solution-recast method. Due to the strong acidic, hydrophilic, and redox properties of Cs2.5H0.5PW12O40, the Cs2.5H0.5PW12O40/Nafion self-humidifying layer not only contributes to humidify the membrane but also contributes to the improvement of the open-circuit voltage of the fuel cell. When the self-humidifying composite membrane was employed as an electrolyte in H-2/O-2 PEMFC, a higher maximum power density value (1.1 W/cm(2)) was obtained than that of Nafion/PTFE composite membrane (0.6 W/cm(2)), under the operating conditions of 70 degrees C and at the humidified temperature of 20 degrees C. (c) 2005 The Electrochemical Society.
关键词[WOS]: 12-TUNGSTOPHOSPHORIC ACID ;  TEMPERATURE OPERATION ;  CATALYTIC-ACTIVITY ;  ALKYLATION ;  NAFION(R)
语种: 英语
WOS记录号: WOS:000234142000016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140214
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, Fuel Cell Res & Dev Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Li, MQ,Shao, ZG,Zhang, HM,et al. Self-humidifying Cs2.5H0.5PW12O40/Nafion/PTFE composite membrane for proton exchange membrane fuel cells[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS,2006,9(2):A92-A95.
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