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PEMFC Nafion~膜内电渗系数和质子电导率的研究 被引量：1

Electro-osmotic drag coefficient and proton conductivity in Nafion~ membrane for PEMFC
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摘要 介绍了一种基于氢泵原理在近似于质子交换膜燃料电池工作条件下测量Nation117膜的电渗系数和质子电导率的新方法，研究了用液态水平衡的Nation@117膜在不同温度和水含量下的电渗系数和电导率。结果表明：在20℃到90℃的温度范围内，水含量等于22．5的膜其电渗系数和质子电导率随着温度的增加而增加；25℃时膜的电渗系数和电导率随着膜中水含量的减少而减小。并结合膜的簇网模型和质子传导机理对结果进行了解释。 A new method based on hydrogen pump was presented to measure the electro-osmotic drag coefficient and proton conductivity in Nation 117 membrane under similar condition to operating PEMFC. For membranes in contact with liquid water on both sides, electro-osmotic drag coefficient and proton conductivity increase with increasing temperature from 20℃ to 90 ℃ while keeping water content inside the membrane constant （k=22.5） and decrease with decreasing water content in the membrane while keeping temperature of system constant （at 25℃）. On the basis of cluster-network model and transport mechanisms of proton and water in ionomeric membrane, the results were discussed.
作者 常章用 罗志平 张玉霞 刘震 李静
机构地区 武汉理工大学材料复合新技术国家重点实验室 九江学院理学院
出处 《电池工业》 CAS 2009年第2期97-100,共4页 Chinese Battery Industry
关键词 质子交换膜燃料电池(PEMFC) 电渗系数 质子电导率 温度 水含量 proton exchange membrane fuel cell （PEMFC） electro-osmotic drag coefficient protonconductivity temperature water content
分类号 TM911.4 [电气工程—电力电子与电力传动]
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参考文献9

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同被引文献28

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电池工业
2009年 第2期

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