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题名: Sulfonated polyimide/PTFE reinforced membrane for PEMFCs
作者: Wang, L.;  Yi, B. L.;  Zhang, H. M.;  Liu, Y. H.;  Xing, D. M.;  Shao, Z.-G.;  Cai, Y. H.
通讯作者: 衣宝廉
关键词: PEMFC ;  composite membrane ;  sulfonated polyimide ;  nafion ;  multilayer
刊名: JOURNAL OF POWER SOURCES
发表日期: 2007-05-01
DOI: 10.1016/j.jpowsour.2006.12.111
卷: 167, 期:1, 页:47-52
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 303
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: A sulfonated polyimide (SPI)/PTFE reinforced membrane was synthesized by impregnating PTFE (porous polytetrafluoroethylene) membrane with a SPI/DMSO solution. The resulting composite membrane was mechanically durable and quite thin relative to traditional perfluorosulfonated ionomer membranes (PFSI). We expect the PTFE to restrict the swelling and dimensional change of the SPI when it is immersed into water. And the reinforcement with PTFE can increase the hydrolysis stability of the SPI due to the low swelling and low dimensional change. From ex-situ testing and a short term fuel cell "life" test, we conclude that the PTFE reinforced sulfonated polyimide had a higher hydrolytic stability than pure sulfonated polyimide. The thin SPI/PTFE membrane showed comparable fuel cell performance with the commercial NRE-212 membrane with H(2)/O(2) at 80 degrees C under fully humidified conditions. The chemically modified membrane with Nation layer showed good stability in a 120 h fuel cell test. (C) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: POLYMER ELECTROLYTE MEMBRANES ;  FUEL-CELL APPLICATIONS ;  PROTON CONDUCTIVITY ;  COMPOSITE MEMBRANE ;  WATER STABILITY ;  ACID ;  POLYELECTROLYTES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000246256300007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98993
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, Proton Exchange Membrane Fuel Cell Key Mat & Tech, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Wang, L.,Yi, B. L.,Zhang, H. M.,et al. Sulfonated polyimide/PTFE reinforced membrane for PEMFCs[J]. JOURNAL OF POWER SOURCES,2007,167(1):47-52.
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