Surface and structural features of Pt/CeO2-La2O3-Al2O3 catalysts for partial oxidation and steam reforming of methane

dc.creatorMortola, VB
dc.creatorDamyanova, S
dc.creatorZanchet, D
dc.creatorBueno, JMC
dc.date2011
dc.dateSEP 21
dc.date2014-07-30T20:07:10Z
dc.date2015-11-26T17:54:14Z
dc.date2014-07-30T20:07:10Z
dc.date2015-11-26T17:54:14Z
dc.date.accessioned2018-03-29T00:37:51Z
dc.date.available2018-03-29T00:37:51Z
dc.identifierApplied Catalysis B-environmental. Elsevier Science Bv, v. 107, n. 41732, n. 221, n. 236, 2011.
dc.identifier0926-3373
dc.identifierWOS:000295305500001
dc.identifier10.1016/j.apcatb.2011.07.012
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/74855
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/74855
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1290737
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionMixed xCeO(2)-yLa(2)O(3)-Al2O3 oxides (where x + y = 12 wt%) were prepared by sol-gel method. It was shown that the mixed oxides are suitable carriers for supported Pt catalysts. The catalytic performances of the catalysts were evaluated in the reaction of stem methane reforming (SMR) and partial oxidation of methane (POM). The effect of the support kind on the surface and structural properties, as well as on the redox and catalytic behavior of the catalyst was studied. It was shown that the coexistence of the Pt-0/Pt delta+- and Ce4+/Ce3+ redox couples leads to the increase of the CH4 conversion and carbon resistance over Pt catalysts. The CeO2-containing catalysts showed the highest TOFCH4 values in SMR in spite of the low metal dispersion that is related to the high capacity of the surface to carbon cleaning caused by the highest oxygen mobility at metal-support interface. The strong initial deactivation of alumina-supported Pt catalyst in POM was related to Pt sintering. (C) 2011 Elsevier B.V. All rights reserved.
dc.description107
dc.description41732
dc.description221
dc.description236
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionBulgarian Ministry of Education, Youth and Science [DTK 02/36]
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionBulgarian Ministry of Education, Youth and Science [DTK 02/36]
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationApplied Catalysis B-environmental
dc.relationAppl. Catal. B-Environ.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectSol-gel method
dc.subjectPt catalysts
dc.subjectCerium oxide
dc.subjectLanthanum oxide
dc.subjectSteam methane reforming
dc.subjectCharacterization
dc.subjectXANES
dc.subjectOxygen Storage Capacity
dc.subjectTreated Pt-gamma-al2o3 Catalysts
dc.subjectSupported Rhodium Catalysts
dc.subjectSynthesis Gas
dc.subjectCarbon-monoxide
dc.subjectSol-gel
dc.subjectPlatinum Catalysts
dc.subjectChemical Conversion
dc.subjectReduction Behavior
dc.subjectMetal-catalysts
dc.titleSurface and structural features of Pt/CeO2-La2O3-Al2O3 catalysts for partial oxidation and steam reforming of methane
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución