RESEARCH / A0057
Engineering Co-N4 active sites in heptazine-porphyrin organic polymer to boost non-radical singlet oxygen generation in peroxymonosulfate activation
Read the original paper · 10.1016/j.jece.2026.124130 ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Fig. 2. (a) XRD patterns of catalysts, (b) Co 2p XPS spectra of the HPOP-Co20, (c) Normalized XANES spectra at the Co K-edge for HPOP-Co20, Co foil, CoPc, CoO, and Co3O4. (d) The FT of k2-weighted EXAFS signals and (e) the corresponding EXAFS R space fitting curve of the HPOP-Co20. WT for the K2-weighted EXAFS signals of (f) HPOP-Co20. Optimized structural models along with calculated spatial distributions of charge density for the LUMO and HOMO, ESP surface distribution of (g) HPOP and (h) HPOP-Co20 (red is positive charge, blue is negative charge).