Copper with an atomic-scale spacing for efficient electrocatalytic co-reduction of carbon dioxide and nitrate to urea

This work presents that Cu with atomic-scale spacings ( d s ) efficiently catalyses the electrochemical co-reduction of CO 2 and NO 3 − to urea. Specifically, Cu with d s near 6 Å (6 Å-Cu) produces urea with a high yield rate and partial current density.