CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures

Herein, a series of highly porous and well-structured mesoporous materials are presented as supports for chromium catalysts for the mild oxidative dehydrogenation of propane using CO2 as the oxidizing agent. The materials MCM-41, SBA-1, and SBA-15 were proposed as supports for the preparation of Cr-...

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Autores: Lara-Moreno, L., Sánchez-López, P., Pawelec, Bárbara, Navarro Yerga, Rufino Manuel, Gomez, S.A., Moyado, S.F., Zepeda, T.A.
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_::cf98e499931983808487abf5f16c4bdc
Acceso en línea:http://hdl.handle.net/10261/429712
https://www.scopus.com/pages/publications/85217169423?origin=resultslist
Access Level:acceso abierto
Palabra clave:CO<sub>2</sub> utilization
Cr-catalyst
Mesostructural materials
Mild oxidative dehydrogenation
Propane dehydrogenation
Propylene
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spelling CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica StructuresLara-Moreno, L.Sánchez-López, P.Pawelec, BárbaraNavarro Yerga, Rufino ManuelGomez, S.A.Moyado, S.F.Zepeda, T.A.CO<sub>2</sub> utilizationCr-catalystMesostructural materialsMild oxidative dehydrogenationPropane dehydrogenationPropyleneHerein, a series of highly porous and well-structured mesoporous materials are presented as supports for chromium catalysts for the mild oxidative dehydrogenation of propane using CO2 as the oxidizing agent. The materials MCM-41, SBA-1, and SBA-15 were proposed as supports for the preparation of Cr-based catalysts with a Cr content of 6 wt%. These results highlight that mesostructured supports influence chromium species’ dispersion and electronic state in the catalysts. Among the catalysts tested, the Cr/SBA-1 catalyst demonstrated superior propane conversion and propylene selectivity. The results suggest that the Cr6+ species fraction significantly influences the conversion and selectivity during oxidative dehydrogenation of propane by CO2. As the Cr6+ species fraction increases, a linear increase in conversion was observed for both propane and CO2. Furthermore, an increase in the Cr6+ species fraction leads to an increased selectivity towards propylene formation while it reduces the selectivity for CO and cracking products. This indicates that Cr6+ species favor olefin formation over undesired by-products. © The Author(s) 2025.This research was funded by: CONACYT-F003, grant 117373. DGAPA-UNAM project IN112922, IN101523 and IA100822.Peer reviewedSpringerConsejo 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/10261/429712https://www.scopus.com/pages/publications/85217169423?origin=resultslistreponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésTopics in Catalysishttps://doi.org/10.1007/s11244-024-02046-zSíinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::cf98e499931983808487abf5f16c4bdc2026-05-22T06:33:51Z
dc.title.none.fl_str_mv CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
title CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
spellingShingle CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
Lara-Moreno, L.
CO<sub>2</sub> utilization
Cr-catalyst
Mesostructural materials
Mild oxidative dehydrogenation
Propane dehydrogenation
Propylene
title_short CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
title_full CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
title_fullStr CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
title_full_unstemmed CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
title_sort CO2-oxidative Dehydrogenation of Light Alkanes Catalyzed by Cr Catalysts Supported on Different Mesoporous Silica Structures
dc.creator.none.fl_str_mv Lara-Moreno, L.
Sánchez-López, P.
Pawelec, Bárbara
Navarro Yerga, Rufino Manuel
Gomez, S.A.
Moyado, S.F.
Zepeda, T.A.
author Lara-Moreno, L.
author_facet Lara-Moreno, L.
Sánchez-López, P.
Pawelec, Bárbara
Navarro Yerga, Rufino Manuel
Gomez, S.A.
Moyado, S.F.
Zepeda, T.A.
author_role author
author2 Sánchez-López, P.
Pawelec, Bárbara
Navarro Yerga, Rufino Manuel
Gomez, S.A.
Moyado, S.F.
Zepeda, T.A.
author2_role author
author
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 CO<sub>2</sub> utilization
Cr-catalyst
Mesostructural materials
Mild oxidative dehydrogenation
Propane dehydrogenation
Propylene
topic CO<sub>2</sub> utilization
Cr-catalyst
Mesostructural materials
Mild oxidative dehydrogenation
Propane dehydrogenation
Propylene
description Herein, a series of highly porous and well-structured mesoporous materials are presented as supports for chromium catalysts for the mild oxidative dehydrogenation of propane using CO2 as the oxidizing agent. The materials MCM-41, SBA-1, and SBA-15 were proposed as supports for the preparation of Cr-based catalysts with a Cr content of 6 wt%. These results highlight that mesostructured supports influence chromium species’ dispersion and electronic state in the catalysts. Among the catalysts tested, the Cr/SBA-1 catalyst demonstrated superior propane conversion and propylene selectivity. The results suggest that the Cr6+ species fraction significantly influences the conversion and selectivity during oxidative dehydrogenation of propane by CO2. As the Cr6+ species fraction increases, a linear increase in conversion was observed for both propane and CO2. Furthermore, an increase in the Cr6+ species fraction leads to an increased selectivity towards propylene formation while it reduces the selectivity for CO and cracking products. This indicates that Cr6+ species favor olefin formation over undesired by-products. © The Author(s) 2025.
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/10261/429712
https://www.scopus.com/pages/publications/85217169423?origin=resultslist
url http://hdl.handle.net/10261/429712
https://www.scopus.com/pages/publications/85217169423?origin=resultslist
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Topics in Catalysis
https://doi.org/10.1007/s11244-024-02046-z
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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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