Differences in Catalytic Sites for CO Oxidation and Propylene Epoxidation on Au Nanoparticles

Wen-Sheng Lee, Birck Nanotechnology Center, Purdue University
Rong Zhang, Birck Nanotechnology Center, Purdue University
M. Cem Akatay, Birck Nanotechnology Center, Purdue University
Chelsey Baertsch, Birck Nanotechnology Center, Purdue University
E A. Stach, Birck Nanotechnology Center, Purdue University; Brookhaven National Laboratory
Fabio H. Ribeiro, Birck Nanotechnology Center, Purdue University
W. Nicholas Delgass, Birck Nanotechnology Center, Purdue University

Abstract

Sintering and increased Au loading of Au/TS-1 causes the rate of CO oxidation per mole of Au to increase, whereas that for epoxidation of propylene in O(2) and H(2) decreases. This opposite trend in rate behavior shows that the catalytic sites for the two reactions must be different.

Discipline(s)

Nanoscience and Nanotechnology