Electrochemistry of Oxygen at Ir Single Crystalline Electrodes in Acid

[Display omitted] •The half-wave potential of ORR on Ir(111) is ca. 0.43 V in 0.1 M HClO4, which are ca. 370 mV more negative than that on Pt(111) respectively. A significant amount of H2O2 is produced in both 0.1M HClO4 and 0.5M H2SO4.•A significant amount of H2O2 is produced from O2 on Ir(111) in...

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