The proposed origin of the improved ORR activity is unlikely to be from residual metal impurities but from the creation of topological defects caused by the removal of high temperature CO desorbing oxygen functional groups.
No takes yet. Share an insight, caveat, or question.
Waki et al. (2014) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: