This work was supported by the Deutsche Forschungsgemeinschaft through Priority Programme SPP 1181 (Be 1201/13-3).
Active Oxygen on a Au/TiO2 Catalyst: Formation, Stability, and CO Oxidation Activity†
Article first published online: 20 JUL 2011
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 50, Issue 43, pages 10241–10245, October 17, 2011
How to Cite
Widmann, D. and Behm, R. J. (2011), Active Oxygen on a Au/TiO2 Catalyst: Formation, Stability, and CO Oxidation Activity. Angew. Chem. Int. Ed., 50: 10241–10245. doi: 10.1002/anie.201102062
- Issue published online: 11 OCT 2011
- Article first published online: 20 JUL 2011
- Manuscript Received: 23 MAR 2011
- Deutsche Forschungsgemeinschaft. Grant Number: Be 1201/13-3
- heterogeneous catalysis;
- reaction mechanism
Ideal location: The active oxygen for CO oxidation on Au/TiO2 catalysts is a highly stable oxygen species, whose formation is facile and hardly activated. This species is proposed to be surface lattice oxygen at the perimeter of the Au–TiO2 interface, activated by the presence of the Au nanoparticle. At higher temperatures, thermally activated Olatt migration also gives access to adjacent Olatt species.