scheme4
Scheme 4. (A) The deep dehydrogenation of propane at the oxygen species of Al2O3 support in Pt/Al2O3 sample; (B) Formation mechanism of the coke precursor and dehydrogenation mechanism on Pt/Al2O3 in PDH, the red ball and line represent the active hydrogen species; (C) Formation mechanism of the coke precursor and dehydrogenation mechanism on the Pt/Sn-Al2O3 catalyst. PDH: Propane dehydrogenation.
