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

Flower-like CeO 2 nanoparticles enhance the performance of CuO nanoparticle/Cu. The system benefits from the heterojunction between p-type CuO and n-type CeO 2 . The selective reduction of CO 2 to methanol on the target catalyst is studied.