H2O2 detection analysis of oxygen reduction reaction on cathode and anode catalysts for polymer electrolyte fuel cells

► The Pt loading amount of Pt/C is independent of the percentage of generated H2O2. ► The generated H2O2 percentage of Pt-Co/C is lower than that of Pt/C at cathode potential. ► The generated H2O2 percentage of Pt-Ru/C is lower than that of Pt/C at anode potential.