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dc.contributor.authorQuinet, Elodie
dc.contributor.authorPiccolo, Laurent
dc.contributor.authorMorfin, Franck
dc.contributor.authorAvenier, Priscilla
dc.contributor.authorDiehl, Fabrice
dc.contributor.authorCaps, Valerie
dc.contributor.authorRousset, Jean Luc
dc.date.accessioned2015-08-12T08:59:10Z
dc.date.available2015-08-12T08:59:10Z
dc.date.issued2009-12-10
dc.identifier.issn00219517
dc.identifier.doi10.1016/j.jcat.2009.09.019
dc.identifier.urihttp://hdl.handle.net/10754/566008
dc.description.abstractThe kinetics of CO oxidation, H2 oxidation and preferential CO oxidation (PrOx) over Au/Al2O3 catalysts have been investigated. The catalysts with the smallest particles (∼2 nm) are the most active for all three reactions. As previously observed, the presence of H2 greatly promotes CO oxidation, which becomes faster than CO-free H2 oxidation at low temperature. From these results and on the basis of previous works, we propose a complete PrOx mechanism. The reaction involves Au-OOH, Au-OH and Au-H intermediates, also involved in H2 oxidation, and benefits from the presence of low-coordination sites. © 2009 Elsevier Inc. All rights reserved.
dc.publisherElsevier BV
dc.subjectCO oxidation
dc.subjectGold
dc.subjectHydrogen
dc.subjectHydroperoxy intermediates
dc.subjectPrOx or SelOx
dc.titleOn the mechanism of hydrogen-promoted gold-catalyzed CO oxidation
dc.typeArticle
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.identifier.journalJournal of Catalysis
kaust.personCaps, Valerie


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