Carbonate-coordinated cobalt co-catalyzed BiVO4/WO3 composite photoanode tailored for CO2 reduction to fuels

A scheme of Co-Ci/BiVO4/WO3 photoanode - Cu cathode system is shown for solar fuel production from H2O and CO2. The productivity of CH4 demonstrates unique effectiveness of carbonate-coordinated cobalt as a tailored oxygen evolution co-catalyst for the system.