Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
51334 | Catalysis Communications | 2009 | 7 Pages |
Abstract
Calcination and evacuation of a Au/FeOx/CeO2 catalyst at 573 K leads to reduction of the deposited gold to metal. This metal state is stable under oxygen and only at 573 K some metal atoms are oxidized to Auδ+ sites (Au+ cations situated on metal gold particles). However, even at room temperature, gold is readily oxidized in a CO + O2 mixture producing, in addition to the Auδ+ sites, some isolated Au+ cations.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
A. Penkova, K. Chakarova, O.H. Laguna, K. Hadjiivanov, F. Romero Saria, M.A. Centeno, J.A. Odriozola,