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题名: Highly conductive, methanol resistant fuel cell membranes fabricated by layer-by-layer self-assembly of inorganic heteropolyacid
作者: Zhao, Chengji1;  Lin, Haidan1;  Cui, Zhiming2;  Li, Xianfeng3;  Na, Hui1;  Xing, Wei2
关键词: Sulfonated poly(arylene ether ketone) ;  Proton-exchange membrane ;  Layer-by-layer ;  Chitosan ;  Phosphotungstate
刊名: JOURNAL OF POWER SOURCES
发表日期: 2009-10-20
DOI: 10.1016/j.jpowsour.2009.05.021
卷: 194, 期:1, 页:168-174
收录类别: SCI ;  ISTP
文章类型: Article
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: Layer-by-layer (LBL) self-assembly is a simple and elegant method of constructing organic-inorganic composite thin films from environmentally benign aqueous solutions. In this paper, we utilize this method to develop proton-exchange membranes for fuel cells. The multilayer film is constructed onto the surface of sulfonated poly(arylene ether ketone) (SPAEK-COOH) membrane by LBL self-assembly of polycation chitosan (CTS) and negatively charged inorganic particle phosphotungstic acid (VIA). The highly conductive inorganic nanoparticles ensure SPAEK-COOH-(CTS/PTA)(n) membranes to maintain high proton conductivity values up to 0.086 S cm(-1) at 25 degrees C and 0.24S cm(-1) at 80 degrees C, which are superior than previous LBL assembled electrolyte systems. These multilayer systems also exhibit extremely low water swelling ratio and methanol permeability. The selectivity of SPAEK-COOH-(CTS/PTA)(8) is 2 orders of more than Nafion (R) 117, which is attractive in direct methanol fuel cells (DMFCs). (C) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: PROTON-EXCHANGE MEMBRANES ;  ETHER KETONE)S SPEEK ;  POLYELECTROLYTE COMPLEXES ;  COMPOSITE MEMBRANES ;  PEMFC SCIENCE ;  QUANTUM JUMPS ;  TECHNOLOGY ;  NANOPARTICLES ;  COPOLYMERS ;  USAGES
语种: 英语
WOS记录号: WOS:000269584400023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141323
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.Jilin Univ, Coll Chem, Alan G MacDiarmid Inst, Changsha 130012, Jilin, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Proton Exchange Membrane Fuel Cell Key Mat & Tech, Dalian 116023, Peoples R China

Recommended Citation:
Zhao, Chengji,Lin, Haidan,Cui, Zhiming,et al. Highly conductive, methanol resistant fuel cell membranes fabricated by layer-by-layer self-assembly of inorganic heteropolyacid[J]. JOURNAL OF POWER SOURCES,2009,194(1):168-174.
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