heptamer, have little impact on the OH binding energy and thus on the ORR activity. Using the trend of the OH binding energies indicated by the black line in Figure , ORR activities can be calculated as a function of Ag surface concentrations for a wide range of concentrations. These calculations also demonstrated that the variation in ORR polarization curves obtained for Pt(Pt6) in all different configurations was relatively small and did not affect the order of increasing activity . While this result of predominant strain effects seems to be in contrast to the conclusions of the earlier study , the discrepancy can easily be understood by the different size of the adsorption ensembles. In [162], electronic modifications arose from changes in the composition of the direct adsorption site, the AxB3-x trimer, and strain arising for Ag outside this trimer was not included. In the study by Ozório et al. , the conclusion of dominant strain effects on the ORR activity refers to the ORR activity of Pt(Pt6) heptamers and the strain induced by Ag surface atoms outside the Pt(Pt6) ensemble, i.e., on next nearest neighbor sites relative to the central adsorbing atom or further away.