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dc.contributor.advisor33
dc.contributor.authorAguila, Gonzalo
dc.contributor.authorCalle, Rafael
dc.contributor.authorGuerrero, Sichem
dc.contributor.authorBaeza, Patricio
dc.contributor.authorAraya, Paulo
dc.coverageDOI: 10.1039/d1ra06204b
dc.date2021
dc.date.accessioned05-01-2026 18:20
dc.date.available05-01-2026 18:20
dc.date.issued33
dc.description.abstractCuO-CeO2/SiO2 catalysts lose activity when they are calcined at 600 °C and temperatures above. This loss of activity was related to a decrease in the amount of highly dispersed Cu species interacting with Ce (CuO-CeO2 interface) over the SiO2 support. These species are highly active in CO oxidation, so this reaction was selected to conduct this study. In order to avoid the activity loss in CuO-CeO2/SiO2 catalysts, the effect of high Ce loads (8, 16, 24, and 36%) on the thermal stability of these catalysts was studied. The results reveal that when increasing calcination temperature from 500 to 700 °C, the catalysts with Ce load equal to or higher than 24% increase the formation of highly dispersed Cu interacting with Ce and therefore the activity (90% of CO conversion at 120 °C). In catalysts with Ce load below 24%, Cu species agglomerate and decrease the activity (less than 5% of CO conversion at 120 °C). This journal is
dc.identifierhttps://investigadores.uandes.cl/en/publications/bb65bb86-821a-4c52-9ad3-464ec933f0c9
dc.identifier.citation33
dc.identifier.uri33
dc.languageeng
dc.language.iso33
dc.publisher33
dc.relation33
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourcevol.11 (2021) date: 2021-09-28 nr.53 p.33271-33275
dc.subjectCatalysis
dc.subjectCerium
dc.subjectThermodynamic properties
dc.subjectceria catalyses
dc.subjectCopper oxides
dc.title33
dc.titleImprovement of thermal stability of highly active species on SiO<sub>2</sub>supported copper-ceria catalystseng
dc.title33spa
dc.title33und
dc.type33
dc.typeArticleeng
dc.typeArtículospa
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