fig16

Figure 16. (A) EXAFS fitting and structural model of Fe/Cu-N-C catalyst; (B and C) FE_CO (B) and TOFs of CO (C) over different N-C catalysts; (A-C) are quoted with permission from Feng et al.^[272]; (D) EDS mapping of Ru₁Zr₁/Co catalyst; (E) TOF and C₅₊ selectivity of four Co-containing catalysts; (D and E) are quoted with permission from Sun et al.^[194]; (F-H) EF_CO of Cu/Ni-NC, Ni-NC, and Cu-NC in different electrolytes: acidic (F), alkaline (G), and neutral (H); (I) CO₂ utilization efficiency of Cu/Ni-NC catalyst in acidic and alkaline electrolyte; (F-I) are quoted with permission from Zhang et al.^[151]. FT: Fourier transform; TOF: turnover frequency; FE_CO: Faradaic efficiency for CO; EXAFS: extended X-ray absorption fine structure; EDS: energy-dispersive X-ray spectroscopy.