Description
Figure 2: Mass specific ORR polarization curves of the unmodified and N-doped Pt/C catalysts obtained in MEA measurements at 80 °C and 100 %RH in oxygen atmosphere (1 atm) and in the GDE half-cell (data collected at room temperature in 2 M HClO4 in oxygen atmosphere and thereafter thermodynamically and kinetically corrected for MEA conditions). A) I/C ratio = 0.1 B) I/C ratio = 0.5 C) I/C ratio = 1.7.