“…The only difference is that we have drawn the peroxide intermediate, *OOH, with the hydrogen atom abstracted to a neighboring surface-bound oxygen atom, as has been proposed to take place on Ru(110), stabilizing this intermediate and lowering the OER overpotential. 29,41,42 We have labelled the peroxide intermediate as the ''active state'' or S RDS , *O as S RDS-1 , and *OH as S RDS-2 based on the analysis in the first article of this series. 35 The destabilized state that we propose as the link between labelled oxygen evolution and metal dissolution is indicated at the start of the middle row.…”