WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”

A copper-ceria bulk catalyst has been compared to a series of catalysts designed according to the as called “supported approach”, corresponding to the dispersion of low content mixed copper-ceria oxide on alumina matrix. The principal characteristics of both types of catalysts are contemplated and t...

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Detalles Bibliográficos
Autores: Ramírez-Reina, Tomás, Ivanova, Svetlana, Laguna, Óscar H., Centeno, Miguel Ángel, Odriozola, José Antonio
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/148952
Acceso en línea:http://hdl.handle.net/10261/148952
Access Level:acceso abierto
Palabra clave:WGS
Gold catalysts
Copper-ceria
bulk vs supported
CO-PROX
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spelling WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”Ramírez-Reina, TomásIvanova, SvetlanaLaguna, Óscar H.Centeno, Miguel ÁngelOdriozola, José AntonioWGSGold catalystsCopper-ceriabulk vs supportedCO-PROXA copper-ceria bulk catalyst has been compared to a series of catalysts designed according to the as called “supported approach”, corresponding to the dispersion of low content mixed copper-ceria oxide on alumina matrix. The principal characteristics of both types of catalysts are contemplated and the differences in their electronic and redox properties discussed in details. As a plus, the gold metal promotion of the catalysts is also envisaged. The advantages of the systems in the CO clean up reactions, WGS and CO-PrOx are commented. While the WGS activity appears to be ruled especially by the Cu/Ce surface to volume ratio, the CO-PrOx reaction is governed by the CuO loading. Gold addition provides benefits only at the low temperature WGS regime. Very importantly, the supported systems are always superior to the bulk configuration in terms of specific activity, a key factor from the catalyst's design perspective.Peer ReviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720162017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/148952reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1489522026-05-22T06:33:51Z
dc.title.none.fl_str_mv WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
title WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
spellingShingle WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
Ramírez-Reina, Tomás
WGS
Gold catalysts
Copper-ceria
bulk vs supported
CO-PROX
title_short WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
title_full WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
title_fullStr WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
title_full_unstemmed WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
title_sort WGS and CO-PrOx reactions using gold promoted copper-ceria catalysts: “Bulk CuO[sbnd]CeO2 vs. CuO[sbnd]CeO2/Al2O3 with low mixed oxide content”
dc.creator.none.fl_str_mv Ramírez-Reina, Tomás
Ivanova, Svetlana
Laguna, Óscar H.
Centeno, Miguel Ángel
Odriozola, José Antonio
author Ramírez-Reina, Tomás
author_facet Ramírez-Reina, Tomás
Ivanova, Svetlana
Laguna, Óscar H.
Centeno, Miguel Ángel
Odriozola, José Antonio
author_role author
author2 Ivanova, Svetlana
Laguna, Óscar H.
Centeno, Miguel Ángel
Odriozola, José Antonio
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv WGS
Gold catalysts
Copper-ceria
bulk vs supported
CO-PROX
topic WGS
Gold catalysts
Copper-ceria
bulk vs supported
CO-PROX
description A copper-ceria bulk catalyst has been compared to a series of catalysts designed according to the as called “supported approach”, corresponding to the dispersion of low content mixed copper-ceria oxide on alumina matrix. The principal characteristics of both types of catalysts are contemplated and the differences in their electronic and redox properties discussed in details. As a plus, the gold metal promotion of the catalysts is also envisaged. The advantages of the systems in the CO clean up reactions, WGS and CO-PrOx are commented. While the WGS activity appears to be ruled especially by the Cu/Ce surface to volume ratio, the CO-PrOx reaction is governed by the CuO loading. Gold addition provides benefits only at the low temperature WGS regime. Very importantly, the supported systems are always superior to the bulk configuration in terms of specific activity, a key factor from the catalyst's design perspective.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017
2017
2017
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/10261/148952
url http://hdl.handle.net/10261/148952
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv 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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score 15,812429

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