Fig. 6: Experimental and theoretical interpretation of propylene selectivity.
From: Sulfur stabilizing metal nanoclusters on carbon at high temperatures
a In-situ TGA of Pt/S–C and Pt/S-free-C under reactive atmosphere of PDH. b Schematic illustration of the crucial role of interfacial electronic effects between Pt and S–C in promoting the selectivity and stability of PDH reaction. c Calculated energy barriers for dehydrogenation steps of propane on Pt38/S–Graphene, Pt38/Graphene, and Pt (111). The dotted lines indicate the desorption barriers of C3H6* to gaseous C3H6.
