fig7

Figure 7. (A) Proposed CO₂RR pathways using Ni-N₄/Ni₅. (B) Free-energy diagram of CO₂RR to CO^[123]. (C) Preparation of Cd SAs/NC. (D) Cd K-edge XANES spectra and first derivatives (inset) of Cd foil, Cd SAs/NC-600, and Cd(NO₃)₂. (E) Cd K-edge EXAFS spectra in the R-space and k-space (inset) of Cd foil and Cd SAs/NC-600. (F) Full charge-discharge profiles. (G) Cycling performance of Cd SAs/NC-600^[128]. These figures are reproduced with permission from Wiley^[123,128].