On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane

Six ceria supports synthesized by various synthesis methodologies were used to deposit cobalt oxide. The catalysts were thoroughly characterized, and their catalytic activity for complete methane oxidation was studied. The supports synthesized by direct calcination and precipitation with ammonia exh...

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Detalles Bibliográficos
Autores: Choya Atencia, Andoni, De Rivas Martín, Beatriz, Gutiérrez Ortiz, José Ignacio, López Fonseca, Rubén
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/63971
Acceso en línea:http://hdl.handle.net/10810/63971
Access Level:acceso abierto
Palabra clave:catalysts
cobalt oxide
ceria
redox reactions
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spelling On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of MethaneChoya Atencia, AndoniDe Rivas Martín, BeatrizGutiérrez Ortiz, José IgnacioLópez Fonseca, Rubéncatalystscobalt oxideceriaredox reactionsSix ceria supports synthesized by various synthesis methodologies were used to deposit cobalt oxide. The catalysts were thoroughly characterized, and their catalytic activity for complete methane oxidation was studied. The supports synthesized by direct calcination and precipitation with ammonia exhibited the best textural and structural properties as well as the highest degree of oxidation. The remaining supports presented poorer textural properties to be employed as catalytic supports. The cobalt deposited over the first two supports presented a good dispersion at the external surface, which induced a significant redox effect that increased the number of Co3+ ions on their surface. Consequently, the presence of highly active lattice oxygen species on the surface of these catalysts was favored. Additionally, the optimal active catalyst (Co-DC) revealed a significant resistance to water vapor inhibition, owing to the high hydrophobicity of the ceria support.Spanish Ministry of Science and Innovation (PID2019-107105RB-I00 AEI/FEDER, UE and PDC2022-133897-I00), Basque Government (IT1509-22), University of the Basque Country UPV/EHU (DOCREC21/23)ACS202420242022info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/63971reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MICINN/PID2019-107105RB-I00/info:eu-repo/grantAgreement/MICINN/PDC2022-133897-I00/https://doi.org/10.1021/acs.iecr.2c03245info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es© 2022 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0.oai:addi.ehu.eus:10810/639712026-06-18T09:23:17Z
dc.title.none.fl_str_mv On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
title On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
spellingShingle On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
Choya Atencia, Andoni
catalysts
cobalt oxide
ceria
redox reactions
title_short On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
title_full On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
title_fullStr On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
title_full_unstemmed On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
title_sort On the Effect of the Synthesis Route of the Support in Co3O4/CeO2 Catalysts for the Complete Oxidation of Methane
dc.creator.none.fl_str_mv Choya Atencia, Andoni
De Rivas Martín, Beatriz
Gutiérrez Ortiz, José Ignacio
López Fonseca, Rubén
author Choya Atencia, Andoni
author_facet Choya Atencia, Andoni
De Rivas Martín, Beatriz
Gutiérrez Ortiz, José Ignacio
López Fonseca, Rubén
author_role author
author2 De Rivas Martín, Beatriz
Gutiérrez Ortiz, José Ignacio
López Fonseca, Rubén
author2_role author
author
author
dc.subject.none.fl_str_mv catalysts
cobalt oxide
ceria
redox reactions
topic catalysts
cobalt oxide
ceria
redox reactions
description Six ceria supports synthesized by various synthesis methodologies were used to deposit cobalt oxide. The catalysts were thoroughly characterized, and their catalytic activity for complete methane oxidation was studied. The supports synthesized by direct calcination and precipitation with ammonia exhibited the best textural and structural properties as well as the highest degree of oxidation. The remaining supports presented poorer textural properties to be employed as catalytic supports. The cobalt deposited over the first two supports presented a good dispersion at the external surface, which induced a significant redox effect that increased the number of Co3+ ions on their surface. Consequently, the presence of highly active lattice oxygen species on the surface of these catalysts was favored. Additionally, the optimal active catalyst (Co-DC) revealed a significant resistance to water vapor inhibition, owing to the high hydrophobicity of the ceria support.
publishDate 2022
dc.date.none.fl_str_mv 2022
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/63971
url http://hdl.handle.net/10810/63971
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN/PID2019-107105RB-I00/
info:eu-repo/grantAgreement/MICINN/PDC2022-133897-I00/
https://doi.org/10.1021/acs.iecr.2c03245
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ACS
publisher.none.fl_str_mv ACS
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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