An inorganic/organic self-humidifying composite membranes for proton exchange membrane fuel cell application

	An inorganic/organic self-humidifying composite membranes for proton exchange membrane fuel cell application
	Zhang, Yu 1,2; Zhang, Huamin 1; Bi, Cheng 1,2; Zhu, Xiaobing 1,2
刊名	electrochimica acta
	2008-05-01
卷号	53 期号:12 页码:4096-4103
关键词	PEMFC self-humidifying membrane pt-cs2.5 catalyst SPEEK proton conductivity
通讯作者	张华民
产权排序	1;1
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.
WOS标题词	science & technology ; physical sciences
类目[WOS]	electrochemistry
研究领域[WOS]	electrochemistry
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
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000255137500005
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/100905]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
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
推荐引用方式 GB/T 7714	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.
APA	Zhang, Yu,Zhang, Huamin,Bi, Cheng,&Zhu, Xiaobing.(2008).An inorganic/organic self-humidifying composite membranes for proton exchange membrane fuel cell application.electrochimica acta,53(12),4096-4103.
MLA	Zhang, Yu,et al."An inorganic/organic self-humidifying composite membranes for proton exchange membrane fuel cell application".electrochimica acta 53.12(2008):4096-4103.