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Abstract Highly dispersed silica-supported CuO x /SiO 2 catalysts were synthesized via solution-phase deposition and studied for their activity, selectivity, and stability in catalyzing the selective oxidation of propylene to… Click to show full abstract
Abstract Highly dispersed silica-supported CuO x /SiO 2 catalysts were synthesized via solution-phase deposition and studied for their activity, selectivity, and stability in catalyzing the selective oxidation of propylene to acrolein. Strategies for ensuring high metal dispersion included controlling the surface density of silanols (via covalent silanol-capping) or by pre-installing different “promoter” transition metals at submonolayer coverages. A comparison of the effect of first row transition metal promoters showed that V and Cr significantly boost catalyst performance and stabilize CuO x sites against aggregation. Graphic Abstract
Journal Title: Catalysis Letters
Year Published: 2019
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