We start our analysis with a clean Pt(111) surface model and immediately note that the picture emerging in Figure The strong potential dependence for O 2 * adsorbing on Au(111) was recently reported and investigated in detail using AIMD. In that study, our analysis specifically allowed to decompose the potential dependence into two distinct contributions of different physical origin: (i) a dipole-field type interaction dominating close to the PZC, and (ii) stabilizing H-bonds from the solvent H 2 O network at more reducing potentials. The latter contribution in particular sets in around the ORR onset, marking the transition from a superoxo-like to a preferred peroxo-like O 2 * state at the surface. It is a priori unclear, however, how each of the above two contributions will manifest at a different metal surface such as Pt.