直接乙醇燃料电池用Nafion/SiO_2复合膜的制备及性能研究  

Preparation and properties of Nafion/SiO_2 composite membrane of direct ethanol fuel cell

作　　者：倪红军[1] 吕灿灿[1] 张成进[1] 廖萍[1] 黄明宇[1] 

机构地区：[1]南通大学机械工程学院,南通226019

出　　处：《化工新型材料》2010年第10期65-66,75,共3页New Chemical Materials

基　　金：江苏省自然科学基金重点项目(BK2007704);江苏高校自然科学重大基础研究项目(08KJA480001);南通市应用研究计划项目(K2008002);南通市2009年科技计划应用研究项目(K2008002和K2009007)

摘　　要：用纳米SiO2对Nafion117进行了掺杂改性并制膜,采用气相色谱分析仪和电化学工作站分别对膜的渗透率和质子电导率等进行了研究。结果表明,掺杂改性后,经60℃硅溶胶处理的膜具有高的质子导电率和高温保水性能,同时使膜的乙醇渗透率大幅度降低。经60℃硅溶胶处理的膜和其它条件处理的膜的渗透系数为4.07×10-4cm2/s、8.13×10-4cm2/s,表明经过60℃硅溶胶处理的Nafion膜乙醇渗透系数降低一半。Membranes formed by Nafion 117 supported on nano-silica（SiO2） have been prepared.The penetration and the proton conductivity of composite membrane were studied by gas chromatograph and electrochemical workstation.The results showed that after doped,the sol handled by 60℃ of composite membrane were improved with high proton conductivity and high temperature water performance,while the permeability of ethanol composite membrane were reduced in a significant.The permeability coefficient of 60℃ sol processing and other conditions to deal with membrane were 4.07 × 10-4 cm2 / s and 8.13×10-4 cm2/s,60℃ sol processing of ethanol membrane was reduced by half in permeability coefficient.

关 键 词：直接乙醇燃料电池 质子交换膜 乙醇渗透率 质子电导率 

分 类 号：TM911.4[电气工程—电力电子与电力传动]