Effect of Ce doping on the structure–activity relationship of MoVO_x composite metal oxides

Abstract

Ce-doped MoVOx with disperse rod-shaped exhibits excellent catalytic performance in selective oxidation of benzyl alcohol.

Preparation of a Nanorod-like Mo-VOx Catalyst for Gas Phase Selective Oxidation of Methyl Lactate with Air

“…In gas phase selective oxidation of higher alcohols with heterogeneous catalysts, great efforts have been put on the development of vanadium-based oxide catalysts. , Besides, it is universally accepted that the V 4+ /V 5+ redox couples have been pinpointed as the effectively active sites, − and oxygen vacancies as well as highly active surface oxygen species (e.g., O 2 2– and O – ) enriched on the surface and/or subsurface are beneficial to improving the selective oxidation of ethyl lactate (EL) to ethyl pyruvate (EP) with O 2 . − Zhang et al prepared supported V 2 O 5 catalysts to study the effect of different supports on the catalytic performance in the oxidation of EL to EP. V 2 O 5 /TiO 2 showed superior activity compared to vanadium supported on MgO, Al 2 O 3 , ZrO 2 , and CeO 2 with 48% EP yield and 62% EL conversion at 180 °C resulting from the specific structure of VO x and the higher surface density of V 4+ /V 5+ redox couples.…”