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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...
Pt–zirconium phosphate–Nafion composite membrane was fabricated for self-humidifying polymer electrolyte membrane fuel cells (PEMFC), and the effects of the size, distribution and amount of Pt impregnated in the Nafion membrane were investigated. Water was produced by the crossover of hydrogen and oxygen on Pt particles embedded in the membrane and the generated water hydrated the membrane. Zirconium...
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