Abstract
To develop a water splitting system operating at high efficiency and rate is challenging. We recently found a class of mononuclear artificial water oxidation complexes (WOC) that show a consecutive four-step proton coupled electron transfer (PCET) mechanism for oxygen generation. Surface anchored electrocatalytic assemblies generate > 250,000 turnover number at rapid rates up to 80 per sec with a moderate overpotential at high current densities.