High temperature PEM fuel cells based on Nafion&reg;/SiO2 composite membrane

	High temperature PEM fuel cells based on Nafion®/SiO2 composite membrane
	Li XJ(李晓锦) ; Ke ZC(柯长春) ; Qu SG(屈树国) ; Li J(李进) ; Shao ZG(邵志刚) ; Yi BL(衣宝廉)
	2011
会议名称	2nd international workshop on degradation issues of fuel cells
会议日期	2011-9-21
会议地点	塞萨洛尼基
页码	97-0
通讯作者	李晓锦
中文摘要	the development of high temperature pem fuel cells (ht-pemfc, working at 100-200℃) has attracted more and more attention worldwide. proton exchange membrane, as the most important material & module during the development of the ht-pemfc, is one of the hottest topics in the pemfc area. organic –inorganic membrane based on nafion® and inorganic nanometer size fillers is considered as a promising route in the preparation of so called “composite electrolyte membranes” for fuel cells with high performance at lower relative humidity and elevated temperature. one of the most widely investigated solutions is to incorporate hydrophilic inorganic nano particles into the nafion matrix to prepare inorganic-organic composite membrane. in this presentation, preparation methods, characterization and single cell tests of sulfonation and unsulfonation nafion®/sio2 composite membrane were presented. for preparation, unsulfonation nafion®/sio2 composite membranes were fabricated via in-situ sol-gel reaction and sulfonation nafion®/sio2 composite membranes were prepared by soaking in-situ sol-gel derived nafion®/sio2 composite membrane in sulfuric acid sulfonation. a novel technique was proposed in controlling the nano particle size by altering the reactant concentrations of in-situ sol-gel reaction. then, sulfonation and unsulfonation nafion®/sio2 composite membranes were characterized by sem/edax, tem, tga, mechanical tensile test ,etc. finally, the pem fuel cell technologies with respect to system were introduced and an experimental ht-pemfc system was integrated and tested for hundred hours at elevated temperature & low humidity.
合作状况	墙报
会议主办者	european commission, dg jrc-ie; dlr, germany; forschungszentrum jülich, germany; doe, usa; enea, italy; zsw, germany; cea, france
会议录	posters
会议录出版者	待补充
会议录出版地	待补充
学科主题	电化学工程
语种	英语
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/116097]
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
推荐引用方式 GB/T 7714	Li XJ,Ke ZC,Qu SG,et al. High temperature PEM fuel cells based on Nafion®/SiO2 composite membrane[C]. 见:2nd international workshop on degradation issues of fuel cells. 塞萨洛尼基. 2011-9-21.