SUPPORTED CORE-SHELL STRUCTURED ZnO CATALYST, AND PREPARATION METHOD AND USE THEREOF

Abstract

The present invention belongs to the technical field of supported catalysts, and discloses a supported core-shell structured ZnO catalyst, and a preparation method and use thereof. With Al2O3 as a support and ZnO as active sites, the catalyst is characteristic of a NiZn@ZnO core-shell structure, which consists of a NiZn alloy core and a ZnO shell The preparation method comprises firstly dissolving Ni(NO3)3.6H2O and Zn(NO3)2.6H2O in deionized water; then impregnating Al2O3 with the solution described above, followed by uniform ultrasonic dispersion and complete drying; and finally the obtained solid is calcinated and reduced to obtain the target catalyst, which exhibits high activity, selectivity and stability. The catalyst can be used for the dehydrogenation of light alkanes to alkenes, especially in dehydrogenation of propane to propylene.

Dependencies are inferred from the claim text.