fig12

Figure 12. (A) Atomic structure model of Cu-S-Ni/SNC; (B) The Cu K edge XANES spectra of Cu-S-Ni/SNC; (C) The Ni K edge XANES spectra of Cu-S-Ni/SNC; (D) The Cu K edge FT-EXAFS spectra of Cu-S-Ni/SNC and the references; (E) The Ni K edge FT-EXAFS spectra of Cu-S-Ni/SNC and the references; (F) The Cu K-edge XANES spectra of Cu-S-Ni/SNC at various potentials during CO₂RR; (G) The Ni K-edge XANES spectra of Cu-S-Ni/SNC at various potentials during CO₂RR; (H) The Cu K-edge FT-EXAFS at open circuit, -0.4, -0.7, and -1.0 V vs. RHE; (I) The Ni K-edge FT-EXAFS at open circuit, -0.4, -0.7, and -1.0 V vs. RHE^[75]. Copyright 2024, Wiley-VCH. SNC: Sulfur- and nitrogen-co-doped carbon; XANES: X-ray absorption near edge structure; FT-EXAFS: Fourier transform extended X-ray absorption fine structure; RHE: reversible hydrogen electrode.