fig12

Figure 12. (A) Schematic illustration of the synthesis of N SACs; (B) HAADF-STEM image of NiSA-NGA; (C) STEM images and the corresponding EDS elemental maps of C, N, and Ni for NiSA-NGA; (D) LSV curves of NiSA-NGA catalysts in CO₂-saturated and N₂-saturated 0.5 m KHCO₃ electrolyte; (E) CO Faradaic efficiency. Reproduced from Ref.^[136] with permission from Wiley-ACH. (F-H) HADDF-STEM images of CuNC-DCD after the CO₂RR test for 30 min at (F) -0.20 V, (G) -0.30 V, and (H) -0.50 V; (I) Size histograms of Cu nanoclusters from CuNC-DCD after the CO₂RR test at -0.50 V for 30 min; Reproduced from Ref.^[137] with permission from the Royal Society of Chemistry.