Fig. 4: Theoretical investigation on the CO2 reduction over Ag,S-Cu2O/Cu.
From: In situ dual doping for constructing efficient CO2-to-methanol electrocatalysts

a Schematic diagram of *CHO intermediate adsorption over Cu2O/Cu, Ag-Cu2O/Cu, S-Cu2O/Cu, and Ag,S-Cu2O/Cu. Reaction free-energy diagrams for the proposed steps of b CO2RR to methanol and c HER. d Differences in limiting potentials for CO2RR to methanol and HER over Cu2O/Cu, Ag-Cu2O/Cu, S-Cu2O/Cu, and Ag,S-Cu2O/Cu.