Cobalt(III) corroles as electrocatalysts for the reduction of dioxygen: Reactivity of a monocorrole, biscorroles, and porphyrin-corrole dyads

Three series of cobalt(III) corroles were tested as catalysts for the electroreduction of dioxygen to water. Cyclic voltammetry and rotating ring-disk electrode voltammetry were both used to examine the catalytic activity of the cobalt complexes in acid media.