Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane

Autores
Murgia, Viviana; Farfan Torres, Elsa Monica; Gottifredi, Juan Carlos Agustin; Sham, Edgardo Ling
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The sol-gel method was used to prepare V-SiO2 catalyst by hydrolysis of vanadium acetylacetonate and silicon alkoxide. Structural changes in the vanadium species upon heat treatment at various temperatures were studied by means of XRD, XPS; DRS UV-vis, FTIR and FTIR of absorbed pyridine. From characterization studies, it was possible to conclude that during the synthesis process, vanadium acetylacetonate, is adsorbed on the external surface of silica particles formed by tetraethoxysilane hydrolysis. A catalyst prepared by wet impregnation of commercial SiO2, with identical V/Si surface ratio was used for comparative purposes. The catalytic behaviour of the solids was studied for the oxidative dehydrogenation of n-butane. The results indicate that vanadium silicate gel calcined at 500 °C is the most active solid. It was found that this preparation procedure leads to the formation of a solid with a high surface area which allows a better dispersion of active species. A direct correlation between catalytic activity and Brönsted acidity was also observed. © 2006 Elsevier B.V. All rights reserved.
Fil: Murgia, Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina
Fil: Farfan Torres, Elsa Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Exactas; Argentina
Fil: Gottifredi, Juan Carlos Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina
Fil: Sham, Edgardo Ling. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina
Materia
Acidity
Butenes
N-Butane
Oxidative Dehydrogenation
Silica
Sol-Gel
Vanadium Catalyst
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/66897
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/66897
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butaneMurgia, VivianaFarfan Torres, Elsa MonicaGottifredi, Juan Carlos AgustinSham, Edgardo LingAcidityButenesN-ButaneOxidative DehydrogenationSilicaSol-GelVanadium Catalysthttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The sol-gel method was used to prepare V-SiO2 catalyst by hydrolysis of vanadium acetylacetonate and silicon alkoxide. Structural changes in the vanadium species upon heat treatment at various temperatures were studied by means of XRD, XPS; DRS UV-vis, FTIR and FTIR of absorbed pyridine. From characterization studies, it was possible to conclude that during the synthesis process, vanadium acetylacetonate, is adsorbed on the external surface of silica particles formed by tetraethoxysilane hydrolysis. A catalyst prepared by wet impregnation of commercial SiO2, with identical V/Si surface ratio was used for comparative purposes. The catalytic behaviour of the solids was studied for the oxidative dehydrogenation of n-butane. The results indicate that vanadium silicate gel calcined at 500 °C is the most active solid. It was found that this preparation procedure leads to the formation of a solid with a high surface area which allows a better dispersion of active species. A direct correlation between catalytic activity and Brönsted acidity was also observed. © 2006 Elsevier B.V. All rights reserved.Fil: Murgia, Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; ArgentinaFil: Farfan Torres, Elsa Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Exactas; ArgentinaFil: Gottifredi, Juan Carlos Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; ArgentinaFil: Sham, Edgardo Ling. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; ArgentinaElsevier Science2006-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66897Murgia, Viviana; Farfan Torres, Elsa Monica; Gottifredi, Juan Carlos Agustin; Sham, Edgardo Ling; Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane; Elsevier Science; Applied Catalysis A: General; 312; 1-2; 9-2006; 134-1430926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X06005175info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2006.06.042info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:53Zoai:ri.conicet.gov.ar:11336/66897instacron: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:34982025-09-29 09:38:54.245CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
title Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
spellingShingle Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
Murgia, Viviana
Acidity
Butenes
N-Butane
Oxidative Dehydrogenation
Silica
Sol-Gel
Vanadium Catalyst
title_short Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
title_full Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
title_fullStr Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
title_full_unstemmed Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
title_sort Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane
dc.creator.none.fl_str_mv Murgia, Viviana
Farfan Torres, Elsa Monica
Gottifredi, Juan Carlos Agustin
Sham, Edgardo Ling
author Murgia, Viviana
author_facet Murgia, Viviana
Farfan Torres, Elsa Monica
Gottifredi, Juan Carlos Agustin
Sham, Edgardo Ling
author_role author
author2 Farfan Torres, Elsa Monica
Gottifredi, Juan Carlos Agustin
Sham, Edgardo Ling
author2_role author
author
author
dc.subject.none.fl_str_mv Acidity
Butenes
N-Butane
Oxidative Dehydrogenation
Silica
Sol-Gel
Vanadium Catalyst
topic Acidity
Butenes
N-Butane
Oxidative Dehydrogenation
Silica
Sol-Gel
Vanadium Catalyst
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The sol-gel method was used to prepare V-SiO2 catalyst by hydrolysis of vanadium acetylacetonate and silicon alkoxide. Structural changes in the vanadium species upon heat treatment at various temperatures were studied by means of XRD, XPS; DRS UV-vis, FTIR and FTIR of absorbed pyridine. From characterization studies, it was possible to conclude that during the synthesis process, vanadium acetylacetonate, is adsorbed on the external surface of silica particles formed by tetraethoxysilane hydrolysis. A catalyst prepared by wet impregnation of commercial SiO2, with identical V/Si surface ratio was used for comparative purposes. The catalytic behaviour of the solids was studied for the oxidative dehydrogenation of n-butane. The results indicate that vanadium silicate gel calcined at 500 °C is the most active solid. It was found that this preparation procedure leads to the formation of a solid with a high surface area which allows a better dispersion of active species. A direct correlation between catalytic activity and Brönsted acidity was also observed. © 2006 Elsevier B.V. All rights reserved.
Fil: Murgia, Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina
Fil: Farfan Torres, Elsa Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Exactas; Argentina
Fil: Gottifredi, Juan Carlos Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina
Fil: Sham, Edgardo Ling. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina. Universidad Nacional de Cuyo. Facultad de Ingeniería; Argentina
description The sol-gel method was used to prepare V-SiO2 catalyst by hydrolysis of vanadium acetylacetonate and silicon alkoxide. Structural changes in the vanadium species upon heat treatment at various temperatures were studied by means of XRD, XPS; DRS UV-vis, FTIR and FTIR of absorbed pyridine. From characterization studies, it was possible to conclude that during the synthesis process, vanadium acetylacetonate, is adsorbed on the external surface of silica particles formed by tetraethoxysilane hydrolysis. A catalyst prepared by wet impregnation of commercial SiO2, with identical V/Si surface ratio was used for comparative purposes. The catalytic behaviour of the solids was studied for the oxidative dehydrogenation of n-butane. The results indicate that vanadium silicate gel calcined at 500 °C is the most active solid. It was found that this preparation procedure leads to the formation of a solid with a high surface area which allows a better dispersion of active species. A direct correlation between catalytic activity and Brönsted acidity was also observed. © 2006 Elsevier B.V. All rights reserved.
publishDate 2006
dc.date.none.fl_str_mv 2006-09
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/11336/66897
Murgia, Viviana; Farfan Torres, Elsa Monica; Gottifredi, Juan Carlos Agustin; Sham, Edgardo Ling; Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane; Elsevier Science; Applied Catalysis A: General; 312; 1-2; 9-2006; 134-143
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66897
identifier_str_mv Murgia, Viviana; Farfan Torres, Elsa Monica; Gottifredi, Juan Carlos Agustin; Sham, Edgardo Ling; Sol-gel synthesis of V2O5-SiO2 catalyst in the oxidative dehydrogenation of n-butane; Elsevier Science; Applied Catalysis A: General; 312; 1-2; 9-2006; 134-143
0926-860X
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/S0926860X06005175
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2006.06.042
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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 13.070432

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