Fig. 3: Coordination environment analysis.
From: Designing covalent organic frameworks with Co-O4 atomic sites for efficient CO2 photoreduction
a High-resolution XPS spectra of O 1 s in Co-2,3-DHTA-COF and 2,3-DHTA-COF. b High-resolution XPS spectra of Co 2p in Co-2,3-DHTA-COF. c, d Normalized XANES spectra and FT-EXAFS spectra at the Co k-edge of Co-2,3-DHTA-COF, Co3O4, CoO, CoPc and Co foil samples. e WT-EXAFS spectrum of discriminating radial distance and k-space resolution of Co-2,3-DHTA-COF. f Normalized XANES spectra. g FT-EXAFS spectra. h WT-EXAFS spectrum for discriminating the radial distance and k-space resolution of Co-TP-COF.
