fig3

Figure 3. eCO₂RR performance: partial current density on (A) Cu-O₄ SAC and (B) Cu/C at varying applied potentials; FE of various eCO₂RR products on (C) Cu-O₄ SAC and (D) Cu/C; (E) Stability test of Cu-O₄ SAC at -1.0 V; (F) Comparison of performance indexes of eCO₂RR to CH₄ with reported catalysts. eCO₂RR: Electrocatalytic carbon dioxide reduction; SAC: single atom catalyst; FE: faradaic efficiency; CH₄: methane.