Fig. 10. (a) CVs of the NiCo/ErN-GO/CCE at different scan rates in 0.1 M KOH + 0.1 M methanol and (b) CVs of the same electrocatalyst at different scan rates in 0.1 M KOH + 0.1 M ethanol at 50 mV s−1. Insets (I) are the plot of anodic peak current densities (Ja) vs. ν1/2 and insets (II) are the plot of peak potential (Epf) vs. ln(ν).
