Fig. 5: PEMWE performance using h-ATO/RuO2 as anode catalyst.

a Schematic illustration of PEMWE device. b The I-V curves of PEMWE device using h-ATO/RuO2 or Com-RuO2 as the anode catalyst at 60 °C. c Chronopotentiometry curve of PEMWE device using h-ATO/RuO2 as anode catalyst operated at 500 mA cm–2 and at 60 °C. The cell voltages were reported here without iR correction.