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Nanoscale insights into Pt-impregnated mixtures of zeolites

2017-08Journal article Restricted access
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dc.contributor.authorMendes, Pedro S. F.
dc.contributor.authorTaleb, Anne-Lise
dc.contributor.authorGay, Anne-sophie
dc.contributor.authorDaudin, Antoine
dc.contributor.authorBouchy, Christophe
dc.contributor.authorSilva, João
dc.contributor.authorRibeiro, M. Filipa
dc.date.accessioned2017-11-15T14:44:56Z
dc.date.available2017-11-15T14:44:56Z
dc.date.issued2017-08
dc.description.abstractA series of catalysts prepared by Pt deposition over intimate mixtures of HUSY and HBEA zeolites was investigated for the first time and compared to individual Pt/zeolite solids. The samples were characterized through macroscopic techniques and at the nanoscale by electron microscopy and electron tomography, in order to evaluate both the acid and the hydrogenation functions. Comparable macroscopic properties were observed between Pt-impregnated individuals and zeolite mixtures. In contrast, at the nanoscale, differences were evident. When mixtures of zeolites were impregnated, Pt was not homogeneously distributed over the sample. In fact, Pt was located mainly on the HBEA zeolite rather than on HUSY, as confirmed by TEM-EDS semi-quantification. This selectivity in Pt location was tentatively explained by the higher amount of terminal silanol and EFAL species in the HBEA sample. The preferential Pt location at the nanoscale may open up new possibilities in the design and application of hybrid catalysts.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMENDES, Pedro S. F. [et al] - Nanoscale insights into Pt-impregnated mixtures of zeolites. Journal of Materials Chemistry A. ISSN 2050-7488. Vol. 5, N.º 32 (2017), pp. 16822-16833pt_PT
dc.identifier.doi10.1039/c7ta02534cpt_PT
dc.identifier.issn2050-7488
dc.identifier.issn2050-7496
dc.identifier.urihttp://hdl.handle.net/10400.21/7518
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.relationSYNERGIES BETWEEN ZEOLITES ON A MODEL HYDROCRACKING REACTION, FROM IDEALITY TO REALITY
dc.relation.publisherversionhttp://pubs.rsc.org/en/content/articlepdf/2017/ta/c7ta02534cpt_PT
dc.subjectN-Hexadecane Hydroisomerizationpt_PT
dc.subject3D Electron-Microscopypt_PT
dc.subjectY-Zeolitespt_PT
dc.subjectCatalystspt_PT
dc.subjectTomographypt_PT
dc.subjectPlatinumpt_PT
dc.subjectMetalpt_PT
dc.subjectQuantificationpt_PT
dc.subjectMesoporositypt_PT
dc.subjectHydrocarbonspt_PT
dc.titleNanoscale insights into Pt-impregnated mixtures of zeolitespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleSYNERGIES BETWEEN ZEOLITES ON A MODEL HYDROCRACKING REACTION, FROM IDEALITY TO REALITY
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F87927%2F2012/PT
oaire.citation.endPage16833pt_PT
oaire.citation.issue32pt_PT
oaire.citation.startPage16822pt_PT
oaire.citation.titleJournal of Materials Chemistry Apt_PT
oaire.citation.volume5pt_PT
oaire.fundingStream5876
person.familyNamegay
person.familyNameDaudin
person.familyNameSilva
person.givenNameanne-sophie
person.givenNameAntoine
person.givenNameJoão Miguel Alves da
person.identifierfWmw7kEAAAAJ
person.identifier.ciencia-id3D1F-BD3A-4A9D
person.identifier.orcid0000-0002-8353-773X
person.identifier.orcid0000-0003-3789-5277
person.identifier.orcid0000-0003-1244-6483
person.identifier.ridF-8581-2018
person.identifier.scopus-author-id55189548000
person.identifier.scopus-author-id16317291000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication89bd74e3-e919-4c97-9c34-23d04b908370
relation.isAuthorOfPublication36449517-d0f7-4619-aae3-81af776b82fd
relation.isAuthorOfPublication.latestForDiscovery36449517-d0f7-4619-aae3-81af776b82fd
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