Fig. 2: Electrochemical CO2RR performance.
a LSV curves of BOC-C, BOC-1, BOC-2, BOC-3 and BOC-4 in Ar-saturated (dashed lines) and CO2-saturated (solid lines) 0.5 M KHCO3 solutions. b FEformate and jformate of BOC with differnt VO concentrations at −0.68 V. c jformate on different samples as function of applied potentials. d The production rate of formate for all samples at −0.88 V. The red and black lines represent samples before and after thermal treatment, respectively. e FEformate of all samples before and after thermal treament at −0.88 V. f The FE of all products and current density for BOC-2 at different applied potentials in H-cell. The error bars represent the standard deviation of three independent experiments.
