O-Th-Com-19 Kinetics Studies on Au CO Oxidation Catalysts: Understanding the Effects of Water, Carbonates, and Deuterium on CO Oxidation over Supported Gold Catalysts

Thursday, June 6, 2013: 5:00 PM
Combs Chandler (Galt House Hotel)
Bert D. Chandler, Johnny Saavedra, Basu Panthi and Christopher J. Pursell, Trinity University, USA.
CO oxidation over Au/TiO2 catalysts is shown to depend heavily on the production of surface carboxylates, which poison the reaction.  A large kinetic isotope effect (kH/kD =2) indicates that O-H bond scission is a key part of the rate determining step, and that water is required for the reaction mechanism.

Extended Abstracts: