fig8

Figure 8. (A) Forward scans of the 1st CV in 0.5 M H₂SO₄ at a scan rate of 50 mV s^-1. (B) Corresponding Tafel plots. (C) Polarization curves, illustrating a PEMWE single cell equipped with a SED Pt#/CP cathode and electrodeposited IrO₂ anode. (D) Tafel plots of polarization curves for a PEMWE single cell using a SED Pt300/CP cathode and a Pt/C/CP cathode. Insets are FESEM images of SED Pt300/CP (in red) and Pt/C/CP (in blue). (E) Total mass activity and (F) Pt-specific mass activity. This figure is quoted with permission from Kim et al.^[54].