直接甲醇燃料电池用SPES/SiO_2复合膜的研究  

Study of SPES/SiO_2 Composite Membranes for Direct Methanol Fuel Cells Usages

作　　者：郑根稳[1] 龚春丽[1] 文胜[1] 周毅[1] 

机构地区：[1]孝感学院化学与材料科学学院,湖北孝感432100

出　　处：《现代塑料加工应用》2010年第5期12-14,共3页Modern Plastics Processing and Applications

基　　金：湖北省自然科学基金指导性计划项目(2009CDZ016)

摘　　要：采用溶胶-凝胶法成功制备出新型磺化聚醚砜(SPES)/二氧化硅(SiO_2)复合质子交换膜,并对复合膜的结构和性能进行了表征。结果表明,SiO_2在复合膜中分布十分均匀,并且由于SPES与SiO_2之间的氢键相互作用使复合膜的热稳定性明显提高。SiO_2的引入虽使得复合膜的质子传导率有所下降,但其阻醇性能得到了明显改善。Novel sulfonated polyether sulfone （SFES）/silica composite proton exchange membranes were successfully prepared by sol-gel technique. The structure and performance of the composite membranes were characterized. The results show that SiO2 particles are uniformly embedded in the composite membrane. The hydrogen bond interactions between SPES and SiO2 led to a higher thermal stability of composite membranes. Although proton conductivity of the composite membranes decreases with increasing of silica content, the methanol permeability of the composite membrane is suppressed distinctly.

关 键 词：磺化聚醚砜 二氧化硅 质子交换膜 直接甲醇燃料电池 

分 类 号：TM911.4[电气工程—电力电子与电力传动]