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题名: An inorganic/organic self-humidifying composite membranes for proton exchange membrane fuel cell application
作者: Zhang, Yu1, 2;  Zhang, Huamin1;  Bi, Cheng1, 2;  Zhu, Xiaobing1, 2
通讯作者: 张华民
关键词: PEMFC ;  self-humidifying membrane ;  pt-cs2.5 catalyst ;  SPEEK ;  proton conductivity
刊名: ELECTROCHIMICA ACTA
发表日期: 2008-05-01
DOI: 10.1016/j.electacta.2007.12.045
卷: 53, 期:12, 页:4096-4103
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
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: With an aim to operate the proton exchange membrane fuel cells (PEMFCs) with dry reactants, an inorganic/organic self-humidifying membrane based on sulfonated polyether ether ketone (SPEEK) hybrid with Cs2.5H0.5PW12O40 supported Pt catalyst (Pt-Cs2.5 catalyst) has been investigated. The Pt-Cs2.5 catalysts incorporated in the SPEEK matrix provide the site for catalytic recombination of permeable H-2 and O-2 to form water, and meanwhile avoid short circuit through the whole membrane due to the insulated property Of Cs2.5H0.5PW12O40 support. Furthermore, the Pt-Cs2.5 catalyst can adsorb the water and transfer proton inside the membrane for its hygroscopic and proton-conductive properties. The structure of the SPEEK/Pt-Cs2.5 composite membrane was characterized by XRD, FT-IR, SEM and EDS. Comparison of the physicochemical and electrochemical properties, such as ion exchange capacity (IEC), water uptake and proton conductivity between the plain SPEEK and SPEEK/Pt-Cs2.5 composite membrane were investigated. Additive stability measurements indicated that the Pt-Cs2.5 catalyst showed improved stability in the SPEEK matrix compared to the PTA particle in the SPEEK matrix. Single cell tests employing the SPEEK/Pt-Cs2.5 self-humidifying membrane and the plain SPEEK membrane under wet or dry operation conditions and primary 100 h fuel cell stability measurement were also conducted in the present study. (c) 2007 Elsevier Ltd. All rights reserved.
关键词[WOS]: POLYMER ELECTROLYTE MEMBRANES ;  POLY(ETHER ETHER KETONE) ;  CESIUM HYDROGEN SALTS ;  12-TUNGSTOPHOSPHORIC ACID ;  SKELETAL ISOMERIZATION ;  HETEROPOLY COMPOUNDS ;  GAS-CROSSOVER ;  N-BUTANE ;  FABRICATION ;  OPERATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000255137500005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100905
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, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Zhang, Yu,Zhang, Huamin,Bi, Cheng,et al. An inorganic/organic self-humidifying composite membranes for proton exchange membrane fuel cell application[J]. ELECTROCHIMICA ACTA,2008,53(12):4096-4103.
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