Enhanced electrochemical CO2 reduction selectivity by application of self-assembled polymer microparticles to a silver electrode.

The electrocatalytic reduction of CO2 to CO using an Ag electrode in an aqueous solution was enhanced following modification of the cathode surface with high-density self-assembled polystyrene microspheres. The modified electrode exhibited improved water repellency, which is believed to have increased its selectivity for the reduction of gaseous CO2.