Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation

This work investigates use of natural clays as a sustainable raw material to prepare supported vanadium catalysts for the aerobic selective oxidation of ethanol to produce acetaldehyde. As dispersion and nature of the supported V species depend on its interaction with the support surface and its spe...

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Autores: Sabre, Ema V., Casuscelli, Sandra G., Cánepa, Analía L., Cortés Corberán, Vicente
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/389855
Acceso en línea:http://hdl.handle.net/10261/389855
https://api.elsevier.com/content/abstract/scopus_id/85197400440
Access Level:acceso abierto
Palabra clave:Acetaldehyde production
Ethanol oxidation
Selective oxidation
Supported vanadium catalysts
Sustainable raw materials
Titanium modified clay
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spelling Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidationSabre, Ema V.Casuscelli, Sandra G.Cánepa, Analía L.Cortés Corberán, VicenteAcetaldehyde productionEthanol oxidationSelective oxidationSupported vanadium catalystsSustainable raw materialsTitanium modified clayThis work investigates use of natural clays as a sustainable raw material to prepare supported vanadium catalysts for the aerobic selective oxidation of ethanol to produce acetaldehyde. As dispersion and nature of the supported V species depend on its interaction with the support surface and its specific surface area, montmorillonite extracted from an Argentinian bentonite clay was pillared with titania, and vanadium was added by wet impregnation to get V/Ti-PILC catalysts. The effects of catalyst V content (0.5 – 2 wt%), reaction temperature (250 – 350 ºC) and O2/ethanol molar ratio (0.5 – 1.5) on their performance for this reaction were studied. Characterization by X-ray diffraction (XRD) and N2 adsorption/desorption isotherms showed that the synthesized catalysts maintained the mesoporous structure after the V addition, though their lamellar structure lost regularity. Under the reaction conditions explored, all the V/Ti-PILC catalysts were active and very selective to acetaldehyde (80 %), their activity increasing with V content. The highest activity was associated with the highest dispersion of isolated tetrahedral vanadium centers, identified by diffuse reflectance UV-Vis, Raman and X-ray photoelectron (XPS) spectroscopies. The highest ethanol conversion (87 %), with 85 % selectivity to acetaldehyde, was reached over the catalyst with 2 wt% of V at 350 ºC with O2/ethanol = 1. The acetaldehyde yield and selectivity values reached are comparable with those reported for related mesoporous catalysts, which allows to consider these supports a sustainable alternative for high surface area supported vanadium catalysts.The authors would like to thank Ministry of Education of Argentina Project PICT 2019-00594, UTN-FRC and CONICET (Argentina), Fundación Carolina (Spain) and Spanish Ministry of Science and Innovation (MICINN) Project PID2021-128915NB-I00 for their financial support.Peer reviewedElsevier BVMinisterio de Educación (Argentina)Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)Fundación CarolinaMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/389855https://api.elsevier.com/content/abstract/scopus_id/85197400440reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-128915NB-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.cattod.2024.114911https://doi.org/10.1016/j.cattod.2024.114911Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3898552026-05-22T06:33:51Z
dc.title.none.fl_str_mv Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
title Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
spellingShingle Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
Sabre, Ema V.
Acetaldehyde production
Ethanol oxidation
Selective oxidation
Supported vanadium catalysts
Sustainable raw materials
Titanium modified clay
title_short Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
title_full Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
title_fullStr Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
title_full_unstemmed Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
title_sort Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation
dc.creator.none.fl_str_mv Sabre, Ema V.
Casuscelli, Sandra G.
Cánepa, Analía L.
Cortés Corberán, Vicente
author Sabre, Ema V.
author_facet Sabre, Ema V.
Casuscelli, Sandra G.
Cánepa, Analía L.
Cortés Corberán, Vicente
author_role author
author2 Casuscelli, Sandra G.
Cánepa, Analía L.
Cortés Corberán, Vicente
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Educación (Argentina)
Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)
Fundación Carolina
Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Acetaldehyde production
Ethanol oxidation
Selective oxidation
Supported vanadium catalysts
Sustainable raw materials
Titanium modified clay
topic Acetaldehyde production
Ethanol oxidation
Selective oxidation
Supported vanadium catalysts
Sustainable raw materials
Titanium modified clay
description This work investigates use of natural clays as a sustainable raw material to prepare supported vanadium catalysts for the aerobic selective oxidation of ethanol to produce acetaldehyde. As dispersion and nature of the supported V species depend on its interaction with the support surface and its specific surface area, montmorillonite extracted from an Argentinian bentonite clay was pillared with titania, and vanadium was added by wet impregnation to get V/Ti-PILC catalysts. The effects of catalyst V content (0.5 – 2 wt%), reaction temperature (250 – 350 ºC) and O2/ethanol molar ratio (0.5 – 1.5) on their performance for this reaction were studied. Characterization by X-ray diffraction (XRD) and N2 adsorption/desorption isotherms showed that the synthesized catalysts maintained the mesoporous structure after the V addition, though their lamellar structure lost regularity. Under the reaction conditions explored, all the V/Ti-PILC catalysts were active and very selective to acetaldehyde (80 %), their activity increasing with V content. The highest activity was associated with the highest dispersion of isolated tetrahedral vanadium centers, identified by diffuse reflectance UV-Vis, Raman and X-ray photoelectron (XPS) spectroscopies. The highest ethanol conversion (87 %), with 85 % selectivity to acetaldehyde, was reached over the catalyst with 2 wt% of V at 350 ºC with O2/ethanol = 1. The acetaldehyde yield and selectivity values reached are comparable with those reported for related mesoporous catalysts, which allows to consider these supports a sustainable alternative for high surface area supported vanadium catalysts.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
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/10261/389855
https://api.elsevier.com/content/abstract/scopus_id/85197400440
url http://hdl.handle.net/10261/389855
https://api.elsevier.com/content/abstract/scopus_id/85197400440
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/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-128915NB-I00
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI https://doi.org/10.1016/j.cattod.2024.114911
https://doi.org/10.1016/j.cattod.2024.114911
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
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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