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题名: Grafted porous PTFE/partially fluorinated sulfonated poly(arylene ether ketone) composite membrane for PEMFC applications
作者: Bi, Cheng1, 2;  Zhang, Huamin1;  Xiao, Shaohua1, 2;  Zhang, Yu1;  Mai, Zhensheng1, 2;  Li, Xianfeng1
关键词: Grafted PTFE reinforced composite membrane ;  Mechanical stability ;  Interfacial compatibility with electrode ;  Proton exchange membrane fuel cell
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2011-07-01
DOI: 10.1016/j.memsci.2011.04.017
卷: 376, 期:1-2, 页:170-178
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: A low cost and mechanically stabilized composite membrane (25 mu m) based on grafted porous polytetrafluoroethylene (grPTFE) substrate and partially fluorinated sulfonated poly(arylene ether ketone) (FSPAEK) polymer was fabricated and investigated for proton exchange membrane fuel cell (PEMFC) applications. In order to improve interfacial compatibility between hydrocarbon membrane and Nafion (R) bonded electrode, partially fluorinated FSPAEK polymer was utilized as a proton conductor. In order to improve the combination between porous substrate and polymer, hydrophilic polystyrenesulfonate was chemically grafted onto hydrophobic PTFE substrate. The experimental results indicated that grPTFE showed richer sulfur concentration, lower water contact angle and better hydrophilicity, which made grPTFE substrate exhibit enhanced combination state with FSPAEK polymer. A relatively high mechanical stability of FSPAEK/grPTFE composite membrane was obtained and was attributed to reinforced effect of grPTFE substrate. The preliminary single cell evaluation had also confirmed FSPAEK/grPTFE composite membrane was stable. As a novel, low cost and reinforced membrane, FSPAEK/grPTFE composite membrane showed potential in PEMFC applications. (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: PROTON-EXCHANGE MEMBRANE ;  FUEL-CELL APPLICATIONS ;  POLYMER ELECTROLYTE MEMBRANES ;  ENGINEERING POLYMERS ;  METALATION ROUTE ;  BLEND-MEMBRANES ;  LOW-TEMPERATURE ;  FABRICATION ;  CONDUCTIVITY ;  CHALLENGES
语种: 英语
WOS记录号: WOS:000292437600019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142624
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.CAS, Dalian Inst Chem Phys, Key Mat Lab PEMFCs, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Bi, Cheng,Zhang, Huamin,Xiao, Shaohua,et al. Grafted porous PTFE/partially fluorinated sulfonated poly(arylene ether ketone) composite membrane for PEMFC applications[J]. JOURNAL OF MEMBRANE SCIENCE,2011,376(1-2):170-178.
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