Fig. 2: Pt L₃-edge XAFS analysis.

a, b XANES and FT EXAFS spectra of Pt₂/mpg-C₃N₄, Pt₁/mpg-C₃N₄, and corresponding references. c, d The FT EXAFS fitting spectrum of Pt₂/mpg-C₃N₄ at R- and k-space, respectively. e WT EXAFS of Pt foil, Pt₁/mpg-C₃N₄, Pt₂/mpg-C₃N₄, and PtO₂. f The schematic model of Pt₂/mpg-C₃N₄ (C: gray; N: blue; O: red; Pt: purple).