Nafion/Analcime and Nafion/Faujasite Composite Membranes for High Temperature Operation of PEMFC
نویسنده
چکیده
─The Nafion/zeolite composite membranes were synthesized for polymer electrolyte fuel cells (PEMFCs) by adding zeolite in the matrix of Nafion polymer. Two kinds of zeolites, Analcime and Faujasite, were used. The physicochemical properties of the composite membranes such as water uptake, ion-exchange capacity, hydrogen permeability, and proton conductivity were determined. The fabricated composite membranes show the significant improvement of all tested properties compared to that of pure Nafion membrane. The maximum proton conductivity of 0.4373 S/cm was obtained from Nafion/Analcime (15%) at 80 °C which is 6.8 times of pure Nafion (0.0642 S/cm at 80 °C). Conclusively, Analcime yielded higher improvement than Faujasite. Index Terms─Composite membrane, Fuel Cell, Nafion, Zeolite
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