fig11
Figure 11. (A) XANES and (B) FT-EXAFS spectra of the Co-SxN4-x SACs; (C) Co-N4, (D) Co-S1N3, (E) Co-S2N2 and (F) Co-S3N1[108]. Copyright 2021, Springer Nature. XANES: X-ray absorption near edge structure; FT-EXAFS: Fourier transform extended X-ray absorption fine structure; SACs: single-atom catalysts.
