Highly Efficient Photoelectrocatalytic Reduction of CO2 to Methanol by a p–n Heterojunction CeO2/CuO/Cu Catalyst

Flower-like CeO2 nanoparticles enhance the performance of CuO nanoparticle/Cu. The system benefits from the heterojunction between p-type CuO and n-type CeO2. The selective reduction of CO2 to methanol on the target catalyst is studied.