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Influence of La2O3 Addition on CuO/CeO2 Catalysts for the Water-Gas Shift Reaction

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dc.contributor.authorde Freitas Silva, Tatiana
dc.contributor.authorAssaf, José Mansur
dc.contributor.authorLucrédio, Alessandra Fonseca [UNESP]
dc.contributor.authorReis, Cristhiane Guimarães Maciel
dc.contributor.authorAlmeida, Karina Arruda
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionFederal University of Itajubá
dc.contributor.institutionFederal University of São João del-Rei
dc.date.accessioned2025-04-29T20:06:42Z
dc.date.issued2025-02-11
dc.description.abstractCuO/CeO2 and CuO/xCeO2-yLa2O3 catalysts, synthesized with varying CeO2 and La2O3 molar ratios (1:1, 1:2, and 2:1), were prepared via the hydrothermal method and tested in the water-gas shift reaction (150-350 °C). La2O3 addition altered structural properties, reducing surface area and copper dispersion. XANES and in situ XRD confirmed metallic Cu species during reduction and reaction. Catalytic tests revealed CuO/CeO2 excelled at low temperatures, while La2O3-doped catalysts, especially CuO/1CeO2-1 La2O3, performed better at 250-350 °C. Stability tests showed La2O3-doped catalysts resisted deactivation and sintering better than CuO/CeO2, even with CO2 and H2 in the feed.en
dc.description.affiliationFederal University of São Carlos
dc.description.affiliationSão Paulo State University
dc.description.affiliationFederal University of Itajubá
dc.description.affiliationFederal University of São João del-Rei
dc.description.affiliationUnespSão Paulo State University
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent3108-3120
dc.identifierhttp://dx.doi.org/10.1021/acs.langmuir.4c03606
dc.identifier.citationLangmuir, v. 41, n. 5, p. 3108-3120, 2025.
dc.identifier.doi10.1021/acs.langmuir.4c03606
dc.identifier.issn1520-5827
dc.identifier.issn0743-7463
dc.identifier.scopus2-s2.0-85216669451
dc.identifier.urihttps://hdl.handle.net/11449/306616
dc.language.isoeng
dc.relation.ispartofLangmuir
dc.sourceScopus
dc.titleInfluence of La2O3 Addition on CuO/CeO2 Catalysts for the Water-Gas Shift Reactionen
dc.typeArtigopt
dspace.entity.typePublication
unesp.author.orcid0000-0002-8112-7788[2]
unesp.author.orcid0000-0002-6531-9448[5]

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