By focusing on only a single LPL cycle (Figure ) along with the mechanistic insights gained from the WPW cycles (Figures ), we can also start to make sense of the mechanisms behind the observed metal dissolution peaks. In both the case of Pt-Cu and Pt-Ni alloys (Figure ), we see a single peak corresponding to Pt dissolution. This peak corresponds to the reduction of Pt-oxide and thus, cathodic transient dissolution of Pt (C1).