Redox chemistry of gold in a Au/FeOx/CeO2 CO oxidation catalyst Penkova, A. Laguna Espitia, Oscar Hernando Gold catalysts Au/FeOx/CeO2 CO oxidation 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. 2024-01-23T11:08:02Z 2024-01-23T11:08:02Z 2009-01-20 journal article A. Penkova, K. Chakarova, O.H. Laguna, K. Hadjiivanov, F.R. Saria, M.A. Centeno, J.A. Odriozola, Redox chemistry of gold in a Au/FeOx/CeO2 CO oxidation catalyst, Catalysis Communications, 10 (2009) 1196-1202 https://hdl.handle.net/10481/87153 doi:10.1016/j.catcom.2009.01.014 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier