Chemistry Letters, Vol.47, No.11, 1424-1427, 2018
Photoelectrochemical Reduction of CO2 to CO Using a CuGaS2 Thin-film Photocathode Prepared by a Spray Pyrolysis Method
A CuGaS2 thin film was formed by annealing of spray-deposited precursor films in a sulfur atmosphere. The film worked as a photocathode for photoelectrochemical CO2 reduction in a neutral aqueous solution saturated with CO2 by applying a bias potential lower than that needed for inducing the reaction under a dark condition.