Fig. 3: Anion-cation double doping effect.
From: In situ dual doping for constructing efficient CO2-to-methanol electrocatalysts

a The performance of CO2RR catalyzed by different dual-doping catalysts at the potential of −1.18 V vs. RHE. b Plot of the experimentally measured partial current density of methanol versus the theoretically calculated Gibbs free-energy differences of ΔG*CHO and ΔG*CO for different doping catalysts.