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A novel deposition method of Pt catalysts onto Nafion membranes impregnated with polypyrrole (PPy) has been proposed for PEMFC application. The proton conductivity and water uptake of the chemically prepared PPy/Nafion composites were investigated. Even if polypyrrole had been combined with Nafion, PPy/Nafion membrane retained cation exchange property similar to polypyrrole film doped with large anion...
In the preparation of electrodes for the proton exchange membrane (PEMFC), the effect of the fabrication method and the thickness of the gas diffusion layer and the impregnation method of Nafion solution on the cell performance was investigated, and unit cell tests were performed. The gas diffusion layer was prepared by rolling, spraying, and screen printing methods, and Nafion solution was impregnated...
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