Fig. 1: Isomorphous substitution by Sn atoms in the MFI framework.
From: Highly efficient catalytic propane dehydrogenation driven by MFI zeolite defect sites

a XRD patterns. b DR UV-Vis spectra. c Quasi-in situ Sn 3 d XPS spectra.
From: Highly efficient catalytic propane dehydrogenation driven by MFI zeolite defect sites
a XRD patterns. b DR UV-Vis spectra. c Quasi-in situ Sn 3 d XPS spectra.