Fig. 3: Local geometric environments of Pt anchored by integrated Sn species in Pt@Sn-MFI.
From: Highly efficient catalytic propane dehydrogenation driven by MFI zeolite defect sites
a XANES spectra. b EXAFS spectra. c WT-EXAFS spectra. d In-situ DRIFTS spectra using CO as a probe molecule. e, f Fitting EXAFS curves. e Pt@MFI; f, Pt@Sn-MFI. In each panel, the upper and lower lines are the FT magnitude and imaginary components, respectively. g Schematic atomic model of Pt@Sn-MFI. Yellow, red, white, gray, and navy-blue spheres represent Si, O, H, Sn and Pt atoms, respectively.
