OF41 Synthesis, Characterization and Investigation of AuCu/SiO2 as a Catalyst for CO Oxidation and Selective Oxidation of Ethanol

Wednesday, June 8, 2011: 1:50 PM
Ambassador Ballroom 3 (Detroit Marriott Hotel at the Renaissance Center )
J. Chris Bauer1, David Mullins1, Meijun Li2, Zili Wu3, E Andrew Payzant1, Steven Overbury1 and Sheng Dai1, (1)Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, (2)Chemical Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, (3)Oak Ridge National Laboratory, Oak Ridge, TN
AuCu/SiO2 catalysts were studied for the oxidation of CO and ethanol. The intermetallic structure was inactive toward CO oxidation.  However, oxidation of the catalysts to form Au-CuOx/SiO2 was necessary to achieve 100% conversion at room-temperature.  These catalysts also show high-activity, stability and selectivity toward acetaldehyde formation at lower temperatures.

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