Artificial Photosynthetic Systems for CO2 Reduction: Progress on Higher Efficiency with Cobalt Complexes as Catalysts.

The conversion of CO2 into fuels or value-added chemicals is currently a field of great research interest. Molecular cobalt catalysts have long been used as mediators of reductive transformations of CO2 . In this Minireview, the cobalt complex-based photocatalytic and photoelectrocatalytic systems for CO2 reduction are discussed and summarized, alongside progress on the design of new molecular cobalt catalysts and their performance in photocatalysis.