Effect of the composition of (Mo, Nb, V, Ti)/γ-Al2O3 surface oxide structures on the oxidative dehydrogenation of ethane to ethylene

Abstract

Molecular layering method was used to synthesize on the surface of γ-Al₂O₃ vanadium-titanium oxide structures of varied composition and structure from the gas phase and niobium- and molybdenum-containing additives from the liquid phase. The resulting composites and the starting aluminum oxide were studied by X-ray diffraction analysis and chemical-analytical and adsorption methods. The catalytic properties of the synthesized products were examined in the oxidative dehydrogenation of ethane. It was shown that the activity of the samples is affected not only by the composition and structure of surface structures, but also by the relative amounts of components in mechanical mixing of vanadium-titanium oxide and niobium oxide supported systems.