Au/TiO2 catalysts are one of the representative systems of Au catalysis and are active in catalyzing low-temperature CO oxidation and propylene epoxidation with H2 and O2. The oxide morphology effect is now well-established in oxide-involved catalysis. In this talk I will report our recent progress of TiO2 morphology effect in Au-TiO2 catalysis. Employing TiO2 nanocrystals (NCs) with various preferentially-exposed facets as supports, we prepared Au/TiO2-NCs catalysts, characetrized their structures and evaluated their catalytic performances. Strong morphology effects were observed in both low-temperature CO oxidation and propylene epoxidation with H2 and O2, from which the most active structures were derived. Consequently, highly active Au/TiO2-NCs catalysts were successfully fabricated.

TiO2 morphology effect in Au-TiO2 catalysis

2019 Spring National Meeting

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