Supported vanadium oxides (VOx) are alternative candidates for non-oxidative propane dehydrogenation (PDH) owing to their competitive performance. This paper describes the roles of V−O sites on PDH over monomeric VOx species supported ZrO2, Al2O3 and SiO2. With control pre-reduction, stable structures obtained PDH, including V−O-support (V−O−S), V−OH V=O sites. By tuning V densities individual ...

Two different preparation methods, viz. incipient impregnation and mechanical mixing, have been used to prepare V-based oxygen carriers with V loadings for chemical looping oxidative dehydrogenation of propane. The effect the method, loading, reaction temperature on performance these measured discussed. It was found that VOx species can be well distributed support when loading is low (5 wt.% 10...

The oxidative dehydrogenation of propane with CO2 (CO2-ODP) is a promising technology for the efficient production propene in tandem reduction to CO. However, rational design high-performance catalysts this green process still challenged by limited understanding nature active sites and reaction mechanism. In work, effects SnO2 promoter on Pt/CeO2 activity selectivity CO2-ODP are elucidated thro...

Graphene oxides (GOs) may offer extraordinary potential in the design of novel catalytic systems due to the presence of various oxygen functional groups and their unique electronic and structural properties. Using first-principles calculations, we explore the plausible mechanisms for the oxidative dehydrogenation (ODH) of propane to propene by GOs and the diffusion of the surface oxygen-contain...