Figures and) is related to the desorption ('stripping') of Cu from the Pt surface (CuUPD) . On the other hand, the origin of A2' Ni dissolution peak (Pt-Ni alloy; Figures and; see also SI, Figure ) cannot be yet determined accurately. What we can presume, however, is that in both cases, the alloyed less noble metal is stable until Pt-oxide (or perhaps the less noble metal oxide) is reduced. In accordance to the protocol presented in Figure of the SI, after the end of II. LPL, the electrocatalyst is briefly exposed to OCP conditions, followed by a jump to 0.05 VRHE (where the Pt-oxide gets reduced) and start of WPW cycles.