Morphological effect to proton conductivity Nafion thin-film on platinum cathode for polymer electrolyte fuel cells

Abstract

Improving oxygen reduction reaction (ORR) activity of cathode catalyst is required for wide spread of polymer electrolyte fuel cells. Since ORR occurs at the interface between cathode catalyst and ionomer, understanding the structure of Nafion on the cathode catalyst is important to design reaction field with high activity. In this study, we investigate the correlation between morphology and proton conductivity.