Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts

tCuMn2O4prepared by a microemulsion method is employed as support of ceria with different loadinglevel (between 5 and 80 wt.%) and the CO-PROX properties of corresponding catalysts are explored. Thecatalysts have been characterized by XRD, SBETmeasurement, HREM and XEDS, XPS and TPR, which allowsest...

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Autores: Elmhamdi, A., Pascual, Laura, Nahdi, K., Martínez-Arias, Arturo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/414535
Acceso en línea:http://hdl.handle.net/10261/414535
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020033624&doi=10.1016%2Fj.apcatb.2017.05.070&partnerID=40&md5=188d3e8e09816fbde8653dc57b8f3962
Access Level:acceso abierto
Palabra clave:CO oxidation
CO-PROX
Hydrogen purification
Nanostructured CeO2/CuMn2O4 catalysts
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spelling Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalystsElmhamdi, A.Pascual, LauraNahdi, K.Martínez-Arias, ArturoCO oxidationCO-PROXHydrogen purificationNanostructured CeO2/CuMn2O4 catalyststCuMn2O4prepared by a microemulsion method is employed as support of ceria with different loadinglevel (between 5 and 80 wt.%) and the CO-PROX properties of corresponding catalysts are explored. Thecatalysts have been characterized by XRD, SBETmeasurement, HREM and XEDS, XPS and TPR, which allowsestablishing a complete model of the structural and chemical characteristics of the catalysts. The charac-terization results have been correlated with the analysis of CO-PROX catalytic properties performed bymeans of activity measurements complemented by operando-DRIFTS. Important differences in structural,redox and catalytic properties are detected as a function of the amount of ceria present in the catalyst.These are shown to depend basically on the size of the supported ceria nanocrystals as well as the factthat the increase in the ceria loading gradually increases the interfacial character of surface exposed sitesof the support with important implications for the CO-PROX properties of the catalyst.© 2017 Elsevier B.V. All rights reservedMinisterio de Economía, Industria y Competitividad (Plan Nacional Project CTQ2015-71823-R).Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/414535https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020033624&doi=10.1016%2Fj.apcatb.2017.05.070&partnerID=40&md5=188d3e8e09816fbde8653dc57b8f3962reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//CTQ2015-71823-RApplied Catalysis B: Environmentalhttps://doi.org/10.1016/j.apcatb.2017.05.070Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4145352026-05-22T06:33:51Z
dc.title.none.fl_str_mv Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
title Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
spellingShingle Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
Elmhamdi, A.
CO oxidation
CO-PROX
Hydrogen purification
Nanostructured CeO2/CuMn2O4 catalysts
title_short Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
title_full Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
title_fullStr Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
title_full_unstemmed Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
title_sort Structure/redox/activity relationships in CeO2/CuMn2O4 CO-PROX catalysts
dc.creator.none.fl_str_mv Elmhamdi, A.
Pascual, Laura
Nahdi, K.
Martínez-Arias, Arturo
author Elmhamdi, A.
author_facet Elmhamdi, A.
Pascual, Laura
Nahdi, K.
Martínez-Arias, Arturo
author_role author
author2 Pascual, Laura
Nahdi, K.
Martínez-Arias, Arturo
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv CO oxidation
CO-PROX
Hydrogen purification
Nanostructured CeO2/CuMn2O4 catalysts
topic CO oxidation
CO-PROX
Hydrogen purification
Nanostructured CeO2/CuMn2O4 catalysts
description tCuMn2O4prepared by a microemulsion method is employed as support of ceria with different loadinglevel (between 5 and 80 wt.%) and the CO-PROX properties of corresponding catalysts are explored. Thecatalysts have been characterized by XRD, SBETmeasurement, HREM and XEDS, XPS and TPR, which allowsestablishing a complete model of the structural and chemical characteristics of the catalysts. The charac-terization results have been correlated with the analysis of CO-PROX catalytic properties performed bymeans of activity measurements complemented by operando-DRIFTS. Important differences in structural,redox and catalytic properties are detected as a function of the amount of ceria present in the catalyst.These are shown to depend basically on the size of the supported ceria nanocrystals as well as the factthat the increase in the ceria loading gradually increases the interfacial character of surface exposed sitesof the support with important implications for the CO-PROX properties of the catalyst.© 2017 Elsevier B.V. All rights reserved
publishDate 2017
dc.date.none.fl_str_mv 2017
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/414535
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020033624&doi=10.1016%2Fj.apcatb.2017.05.070&partnerID=40&md5=188d3e8e09816fbde8653dc57b8f3962
url http://hdl.handle.net/10261/414535
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85020033624&doi=10.1016%2Fj.apcatb.2017.05.070&partnerID=40&md5=188d3e8e09816fbde8653dc57b8f3962
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO//CTQ2015-71823-R
Applied Catalysis B: Environmental
https://doi.org/10.1016/j.apcatb.2017.05.070
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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