fig4

Figure 4. (A) The supposed reaction mechanism of CO₂RR on the BiCu (111)-SAA (left) and Cu (111)-Nano (right); (B) FE values of different products; (C) In situ SR-FTIR spectra of BiCu SAA and Cu nanocatalyst at different potentials; (D) DFT diagram for the CO₂RR to C₂H₄ on the surface of catalysts; (E) The free energy plots for different processes. Reprinted with permission from Ref.^[59]. Copyright 2023, Wiley-VCH. SAA: Single atom alloy; FE: faraday efficiency; FTIR: fourier-transform infrared spectroscopy; DFT: density functional theory.