CO Oxidation Catalyzed by Supported Gold: Cooperation between Gold and Nanocrystalline Rare‐Earth Supports Forms Reactive Surface Superoxide and Peroxide Species

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. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z500659_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.