Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction

In this work, the influence of the porous structure of the catalyst, as well as the effect of La doping on the performance of Ni-ceria-based catalysts for the reverse water-gas shift reaction (rWGS) has been studied. Thus, Ni-ceria and Ni-La doped ceria catalysts have been prepared using nanocasting...

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Autores: Bachiller-Baeza, B., Wu, Jiajie, García García, Mónica, Alonso, J. A., Álvarez Galván, María Consuelo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::664951152393e5a16b07de7e17e44690
Acceso en línea:http://hdl.handle.net/10261/430724
https://www.scopus.com/pages/publications/105012285466?origin=resultslist
Access Level:acceso abierto
Palabra clave:Mesoporous ceria
Nanocasting
Ni
RWGS
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spelling Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS ReactionBachiller-Baeza, B.Wu, JiajieGarcía García, MónicaAlonso, J. A.Álvarez Galván, María ConsueloMesoporous ceriaNanocastingNiRWGSIn this work, the influence of the porous structure of the catalyst, as well as the effect of La doping on the performance of Ni-ceria-based catalysts for the reverse water-gas shift reaction (rWGS) has been studied. Thus, Ni-ceria and Ni-La doped ceria catalysts have been prepared using nanocasting or hard-templating method, also studying the influence of the incorporation method of the nickel phase. Samples prepared by sol-gel were also prepared for comparison. The catalysts were tested in the rWGS and characterized by different techniques: X-ray diffraction (XRD), electron microscopy (TEM and STEM-EDX), adsorption-desorption N2 isotherms (BET), temperature programmed reduction (TPR-H2), and X-ray photoelectron spectroscopy. The results obtained indicate that the mesoporous catalysts prepared by hard-templating, regardless of the nickel incorporation method have developed a mesoporous structure and a relatively large specific surface area that increases CO formation per catalyst weight, compared to those prepared by sol-gel. The method of incorporating Ni into mesoporous catalysts influences the level of catalyst deactivation and the evolution of CO selectivity with reaction time. © 2025 The Author(s). ChemCatChem published by Wiley-VCH GmbH.We acknowledge grant PID2021-123287OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by ERDF/UE. M.G.G. thanks theSECAT for a “Introducción a la Investigación en Catálisis” SECAT-Intro-2023 grant.Peer reviewedJohn Wiley and Sons IncConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/430724https://www.scopus.com/pages/publications/105012285466?origin=resultslistreponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésChemCatChemhttps://doi.org/10.1002/cctc.202500789Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::664951152393e5a16b07de7e17e446902026-05-22T06:33:51Z
dc.title.none.fl_str_mv Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
title Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
spellingShingle Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
Bachiller-Baeza, B.
Mesoporous ceria
Nanocasting
Ni
RWGS
title_short Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
title_full Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
title_fullStr Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
title_full_unstemmed Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
title_sort Efficient Mesoporous NiCeLaOx-Based Catalysts Prepared by Nanocasting for the RWGS Reaction
dc.creator.none.fl_str_mv Bachiller-Baeza, B.
Wu, Jiajie
García García, Mónica
Alonso, J. A.
Álvarez Galván, María Consuelo
author Bachiller-Baeza, B.
author_facet Bachiller-Baeza, B.
Wu, Jiajie
García García, Mónica
Alonso, J. A.
Álvarez Galván, María Consuelo
author_role author
author2 Wu, Jiajie
García García, Mónica
Alonso, J. A.
Álvarez Galván, María Consuelo
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 Mesoporous ceria
Nanocasting
Ni
RWGS
topic Mesoporous ceria
Nanocasting
Ni
RWGS
description In this work, the influence of the porous structure of the catalyst, as well as the effect of La doping on the performance of Ni-ceria-based catalysts for the reverse water-gas shift reaction (rWGS) has been studied. Thus, Ni-ceria and Ni-La doped ceria catalysts have been prepared using nanocasting or hard-templating method, also studying the influence of the incorporation method of the nickel phase. Samples prepared by sol-gel were also prepared for comparison. The catalysts were tested in the rWGS and characterized by different techniques: X-ray diffraction (XRD), electron microscopy (TEM and STEM-EDX), adsorption-desorption N2 isotherms (BET), temperature programmed reduction (TPR-H2), and X-ray photoelectron spectroscopy. The results obtained indicate that the mesoporous catalysts prepared by hard-templating, regardless of the nickel incorporation method have developed a mesoporous structure and a relatively large specific surface area that increases CO formation per catalyst weight, compared to those prepared by sol-gel. The method of incorporating Ni into mesoporous catalysts influences the level of catalyst deactivation and the evolution of CO selectivity with reaction time. © 2025 The Author(s). ChemCatChem published by Wiley-VCH GmbH.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/430724
https://www.scopus.com/pages/publications/105012285466?origin=resultslist
url http://hdl.handle.net/10261/430724
https://www.scopus.com/pages/publications/105012285466?origin=resultslist
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv ChemCatChem
https://doi.org/10.1002/cctc.202500789
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley and Sons Inc
publisher.none.fl_str_mv John Wiley and Sons Inc
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 15,811543

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