质子交换膜是质子交换膜燃料电池(PEMFC)的核心组成之一,它是一种选择透过性膜,不仅是隔膜材料,还是PEMFC的电解质.Nafion(R)膜是目前最常用的质子交换膜之一.本文通过比较三种Nafion(R)R膜和经过不同单电池运行时间Nafion(R)112膜的玻璃化转变温度(Tg)及离子电导率(σ),试图考察物理老化对其导电性能的影响.根据单电池寿命测试结果得到了Nafion(R)112膜老化的活化能(ΔH老化)为665.0kJ/mol.
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