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	The effect of sorbates(water,methanol,TEOS)on the preparation of Nafion/SiO2 composite membrane via in situ sol-gel reaction
	Li XJ(李晓锦) ; Ke ZC(柯长春) ; Shao ZG(邵志刚) ; Yi BL(衣宝廉)
	2009-08-22
会议名称	nternational symposium on electrochemistry for energy conversion and storage
会议日期	2009-8-22
会议地点	中国
页码	47/1
通讯作者	李晓锦
中文摘要	nafion/sio2 composite membranes were studied for the h2/air proton exchange membrane fuel cells operated above 100℃. sio2/nafion 212 composite membranes were prepared via in situ sol-gel reaction of tetracthylorthosilicate(teos)on sorption behavior of nafion membranes was evaluated. the physico-chemical properties of these membranes were characterized by scanning electron microscopy the dispersion of sio2 nanoparticles, which play an important role on the water uptake and transport properties of composite membrane. further, the synthesized nafion/sio2 nanococomposite membranes was compared with unmodified nafion in terms of water uptake, proton conductivity at different relative humidity conditions(rhs), fuel cell performance, and ion exchange measurements. it was found that the composite membrane showed a high uptake of water, and that the performance and stability of a mea using the composite membrane was much higher than that of a commercial nafion 212 membrane at 110℃.
会议主办者	武汉大学
学科主题	物理化学
语种	中文
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/113792]
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,Shao ZG,et al. The effect of sorbates(water,methanol,TEOS)on the preparation of Nafion/SiO2 composite membrane via in situ sol-gel reaction[C]. 见:nternational symposium on electrochemistry for energy conversion and storage. 中国. 2009-8-22.

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