Fig. 4.
Characterization of other TM2/mpg-C3N4 clusters. a XANES spectra at the Pd k-edge of Pd2/mpg-C3N4, PdO, and Pd foil. b Fourier transform (FT) at the Pd k-edge of Pd2/mpg-C3N4, PdO, and Pd foil. c Corresponding fits of the EXAFS spectrum of Pd2/mpg-C3N4 at R space. The inset of (c) is the AC HADDF-STEM of Pd2/mpg-C3N4, scale bar, 1 nm. d XANES spectra at the Ir L3-edge of Ir2/mpg-C3N4, IrO2, and Ir powder. e Fourier transform at the Ir L3-edge of Ir2/mpg-C3N4, IrO2, and Ir powder. f Corresponding fits of the EXAFS spectrum of Ir2/mpg-C3N4 at R space. The inset of (f) is the AC HADDF-STEM of Ir2/mpg-C3N4, scale bar, 1 nm