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

Autores
Sabre, Ema Virginia; Casuscelli, Sandra Graciela; Cánepa, Analía Laura; Cortés Corberán, Vicente
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Fil: Sabre, Ema Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Casuscelli, Sandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Cánepa, Analía Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Cortés Corberán, Vicente. Consejo Superior de Investigaciones Científicas; España
Materia
Titanium modified clay
Supported vanadium catalysts
Selective oxidation
Ethanol oxidation
Acetaldehyde production
Sustainable raw material
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/244289
Acceder
id CONICETDig_455ac0066809f3c51dfe1139408d67dc
oai_identifier_str oai:ri.conicet.gov.ar:11336/244289
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidationSabre, Ema VirginiaCasuscelli, Sandra GracielaCánepa, Analía LauraCortés Corberán, VicenteTitanium modified claySupported vanadium catalystsSelective oxidationEthanol oxidationAcetaldehyde productionSustainable raw materialhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2This 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.Fil: Sabre, Ema Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Casuscelli, Sandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Cánepa, Analía Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Cortés Corberán, Vicente. Consejo Superior de Investigaciones Científicas; EspañaElsevier Science2024-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244289Sabre, Ema Virginia; Casuscelli, Sandra Graciela; Cánepa, Analía Laura; Cortés Corberán, Vicente; Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation; Elsevier Science; Catalysis Today; 442; 114911; 1-12-2024; 1-110920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092058612400405Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2024.114911info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:39:24Zoai:ri.conicet.gov.ar:11336/244289instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:39:24.953CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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 Virginia
Titanium modified clay
Supported vanadium catalysts
Selective oxidation
Ethanol oxidation
Acetaldehyde production
Sustainable raw material
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 Virginia
Casuscelli, Sandra Graciela
Cánepa, Analía Laura
Cortés Corberán, Vicente
author Sabre, Ema Virginia
author_facet Sabre, Ema Virginia
Casuscelli, Sandra Graciela
Cánepa, Analía Laura
Cortés Corberán, Vicente
author_role author
author2 Casuscelli, Sandra Graciela
Cánepa, Analía Laura
Cortés Corberán, Vicente
author2_role author
author
author
dc.subject.none.fl_str_mv Titanium modified clay
Supported vanadium catalysts
Selective oxidation
Ethanol oxidation
Acetaldehyde production
Sustainable raw material
topic Titanium modified clay
Supported vanadium catalysts
Selective oxidation
Ethanol oxidation
Acetaldehyde production
Sustainable raw material
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv 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.
Fil: Sabre, Ema Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Casuscelli, Sandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Cánepa, Analía Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Cortés Corberán, Vicente. Consejo Superior de Investigaciones Científicas; España
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 2024-12-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/244289
Sabre, Ema Virginia; Casuscelli, Sandra Graciela; Cánepa, Analía Laura; Cortés Corberán, Vicente; Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation; Elsevier Science; Catalysis Today; 442; 114911; 1-12-2024; 1-11
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244289
identifier_str_mv Sabre, Ema Virginia; Casuscelli, Sandra Graciela; Cánepa, Analía Laura; Cortés Corberán, Vicente; Vanadium-containing modified clays as catalysts for acetaldehyde production by ethanol selective oxidation; Elsevier Science; Catalysis Today; 442; 114911; 1-12-2024; 1-11
0920-5861
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092058612400405X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2024.114911
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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