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Second Meeting of the |
Pappadeaux |
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Selectivity in Catalysis: Catalyst Design, Unique Activation, and Kinetic Studies
Professor Steven Suib ABSTRACT Selectivity to produce desired products in catalytic reactions is the focus of our research. Several examples of the design of catalysts to drive various reactions will be discussed. The role of redox chemistry in preparation and use of such catalysts will be discussed. Catalysts for selective oxidations, production of acrolein, and activation of CO2 are of current interest in our group. Novel methods of catalyst preparation such as in situ mixing nozzle microwave methods will be mentioned. Catalysts that are porous oxides and mixed metal oxides are used in these reactions. Effects of morphology and particle size on rates of reaction have been observed. In situ soft XPS studies of oxygenates at metal oxide surfaces have led to understanding of surface species present in oxidation reactions. Dynamic Enhancement of Catalytic Activity at the Nanoscale (DECAN) experiments can be used to selectively activate molecules and enhance yields of catalytic processes by the polarization of catalytic interfaces under certain conditions. Relationships among catalysts, preparation methods, surface species and catalytic activity and selectivity will be discussed. |
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