Nafion/SiO_2/PTFE复合膜的制备及性能  

Preparation and performance of Nafion/SiO_2/PTFE composite membrane

作　　者：王晓恩[1] 唐浩林[1] 潘牧[1] 李道喜[1] 余军[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《电池》2006年第4期263-264,共2页Battery Bimonthly

摘　　要：采用Nafion/SiO2溶液和多孔PTFE薄膜为原料,制备了Nafion/SiO2/PTFE复合膜。SEM图片表明:复合膜具有良好的树脂填充度;FTIR测试表明:SiO2被引入到复合膜中,没有影响膜的本体结构;TG-DTA测试表明:复合膜具有良好的保水性能。充放电测试表明:由于SiO2的保水作用,复合膜在高电流密度时(】0.4 A/cm2)具有更好的输出能力。Nafion/SiO2/PTFE composite membrane was prepared with Nafion/SiO2 solution and porous PTFE film as raw materials. SEM photographs showed the composite membrane had good resin degree of filling. FTIR test showed SiO2 filling had no influence on the ontic structure of the composite membrane. TG-DTA test showed the composite membrane had excellent water-holding power. The charge-discharge test showed the composite membrane had better output performance in the high current density region （ 〉 0.4 A/cm^2） due to the excellent water-holdlng property of SiO2.

关 键 词：NAFION SIO2 多孔PTFE 质子交换膜燃料电池(PEMFC) 

分 类 号：TM911.4[电气工程—电力电子与电力传动]