Catalytic Dehydrogenation of Hydrocarbons over Iron-silicate ZSM-5

We present an investigation of the chemistry at the acid sites in Fe-ZSM-5 zeolites using the monomolecular propane reaction. Surprisingly, very high selectivity toward dehydrogenation is observed for the propane conversion over H-Fe-ZSM-5. This work can provide evidence for different catalytic chemistry in H-Fe-ZSM-5 other than typical protolytic chemistry.