We thank CICYT (MAT 2003-07945-C02-01), the Auricat European Union network (HPRN-CT-2002-00174), the US National Science Foundation (CTS-0121619; JCF-G), and the US Department of Energy (FG02-04ER15513; YH) for financial support. We also thank the NSLS (supported by the US Department of Energy, DE-AC02-98CH10886) for beam time and the staff of the electron microscopy group at UPV.
CO Oxidation Catalyzed by Supported Gold: Cooperation between Gold and Nanocrystalline Rare-Earth Supports Forms Reactive Surface Superoxide and Peroxide Species†
Article first published online: 29 JUN 2005
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 44, Issue 30, pages 4778–4781, July 25, 2005
How to Cite
Guzman, J., Carrettin, S., Fierro-Gonzalez, J. C., Hao, Y., Gates, B. C. and Corma, A. (2005), CO Oxidation Catalyzed by Supported Gold: Cooperation between Gold and Nanocrystalline Rare-Earth Supports Forms Reactive Surface Superoxide and Peroxide Species. Angew. Chem. Int. Ed., 44: 4778–4781. doi: 10.1002/anie.200500659
- Issue published online: 18 JUL 2005
- Article first published online: 29 JUN 2005
- Manuscript Revised: 20 APR 2005
- Manuscript Received: 22 FEB 2005
- heterogeneous catalysis;
- EXAFS spectroscopy;
Beneficial defects: Reactive η1-superoxide and peroxide species at one-electron defect sites are formed at the metal–support interface in gold nanoclusters on nanocrystalline CeO2−x. These intermediates oxidize CO adsorbed on gold to form CO2. The reactive oxygen species are formed on nanocrystalline CeO2−x (see picture) but not on conventional CeO2, and their formation is enhanced by the gold.