fig9

Figure 9. (A) Schematic illustration of the FE of C₂₊ products for CO₂RR by Cu@Ag core-shell catalyst and (B) Schematic illustration of the FE of C₂₊ products for CO₂RR at low potentials by Cu catalyst^[37]. (C) Schematic illustration of the catalytic mechanism of Cu@Ag heterostructure , (D) FE for C₂ products and (E) FE for C₂H₄ of Cu@Ag core-shell catalysts^[78]. (F) Ratio between FE for C₂₊/C₁ products of Ag@Cu catalysts with different pore sizes^[77].