fig2

From: Structure-activity relationships of Fe/N-doped carbon catalysts for electrochemical hydrodechlorination

Figure 2. (A) Fe K-edge XANES spectra, (B) FT-EXAFS spectra in R space, and (C) WT-EXAFS spectra of Fe foil, Fe₂O₃, FePc, and Fe/NC-10. (D and E) FT-EXAFS fitting curves of Fe/NC-10 in (d) R space and (E) k space. The inset is the schematic model of Fe−N₄ SACs: Fe (purple), N (blue), and C (gray). Data plotting was performed using Origin 2022. XANES: X-ray absorption near-edge structure; FT-EXAFS: Fourier transformed X-ray absorption fine structure; WT: wavelet transform; SACs: single-atom catalysts.