Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone

Autores
Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Molybdovanadophosphate heteropolycompounds, H4PMo 11VO40 and H9PMo6V6O 40 and the corresponding Cs salts, were synthesized. The influence of thermal treatment on their Keggin primary structures and their acidic properties were studied. The presence of Keggin units and the V incorporation into these units were observed by TGA, DTA, DRS and FT-IR. H4PMo 11VO40 possesses an acid strength higher than that of the V-free sample and H9PMo6V6O40, at room temperature. Heating above 200°C leads to considerable structural changes and acidity decrease. The Cs salts from H4PMo 11VO40 possesses stronger acidic sites than those from H9PMo6V6O40. Moreover when the Cs number increases, the acidic properties decrease. The salts with one, two, and three Cs are more unstable with temperature than the salt with 2.5 Cs. The specific surface area for the Cs salts depends on the temperature and Cs number. The prepared heteropolycompounds were used as catalysts for the liquid phase reaction of synthesis of 2,6-dimethyl-p-benzoquinone from 2,6-dimethylphenol, using hydrogen peroxide, with high yields. A selectivity to the p-benzoquinone of 79-59% was obtained when the reaction was catalyzed by Cs salts from the H4PMo11VO40 acid. © 2004 Elsevier B.V. All rights reserved.
Fil: Villabrille, Paula Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Romanelli, Gustavo Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química; Argentina
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Caceres, Carmen Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Materia
2,6-Dimethyl-1,4-Quinone
Catalytic Oxidation
Keggin Heteropolycompounds
Molybdovanadophosphate
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:11336/57792
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/57792
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinoneVillabrille, Paula IsabelRomanelli, Gustavo PabloVazquez, Patricia GracielaCaceres, Carmen Victoria2,6-Dimethyl-1,4-QuinoneCatalytic OxidationKeggin HeteropolycompoundsMolybdovanadophosphatehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Molybdovanadophosphate heteropolycompounds, H4PMo 11VO40 and H9PMo6V6O 40 and the corresponding Cs salts, were synthesized. The influence of thermal treatment on their Keggin primary structures and their acidic properties were studied. The presence of Keggin units and the V incorporation into these units were observed by TGA, DTA, DRS and FT-IR. H4PMo 11VO40 possesses an acid strength higher than that of the V-free sample and H9PMo6V6O40, at room temperature. Heating above 200°C leads to considerable structural changes and acidity decrease. The Cs salts from H4PMo 11VO40 possesses stronger acidic sites than those from H9PMo6V6O40. Moreover when the Cs number increases, the acidic properties decrease. The salts with one, two, and three Cs are more unstable with temperature than the salt with 2.5 Cs. The specific surface area for the Cs salts depends on the temperature and Cs number. The prepared heteropolycompounds were used as catalysts for the liquid phase reaction of synthesis of 2,6-dimethyl-p-benzoquinone from 2,6-dimethylphenol, using hydrogen peroxide, with high yields. A selectivity to the p-benzoquinone of 79-59% was obtained when the reaction was catalyzed by Cs salts from the H4PMo11VO40 acid. © 2004 Elsevier B.V. All rights reserved.Fil: Villabrille, Paula Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Romanelli, Gustavo Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química; ArgentinaFil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Caceres, Carmen Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaElsevier Science2004-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/57792Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria; Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone; Elsevier Science; Applied Catalysis A: General; 270; 1-2; 8-2004; 101-1110926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2004.04.028info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X04004004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:07:14Zoai:ri.conicet.gov.ar:11336/57792instacron: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 15:07:14.738CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
title Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
spellingShingle Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
Villabrille, Paula Isabel
2,6-Dimethyl-1,4-Quinone
Catalytic Oxidation
Keggin Heteropolycompounds
Molybdovanadophosphate
title_short Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
title_full Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
title_fullStr Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
title_full_unstemmed Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
title_sort Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone
dc.creator.none.fl_str_mv Villabrille, Paula Isabel
Romanelli, Gustavo Pablo
Vazquez, Patricia Graciela
Caceres, Carmen Victoria
author Villabrille, Paula Isabel
author_facet Villabrille, Paula Isabel
Romanelli, Gustavo Pablo
Vazquez, Patricia Graciela
Caceres, Carmen Victoria
author_role author
author2 Romanelli, Gustavo Pablo
Vazquez, Patricia Graciela
Caceres, Carmen Victoria
author2_role author
author
author
dc.subject.none.fl_str_mv 2,6-Dimethyl-1,4-Quinone
Catalytic Oxidation
Keggin Heteropolycompounds
Molybdovanadophosphate
topic 2,6-Dimethyl-1,4-Quinone
Catalytic Oxidation
Keggin Heteropolycompounds
Molybdovanadophosphate
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Molybdovanadophosphate heteropolycompounds, H4PMo 11VO40 and H9PMo6V6O 40 and the corresponding Cs salts, were synthesized. The influence of thermal treatment on their Keggin primary structures and their acidic properties were studied. The presence of Keggin units and the V incorporation into these units were observed by TGA, DTA, DRS and FT-IR. H4PMo 11VO40 possesses an acid strength higher than that of the V-free sample and H9PMo6V6O40, at room temperature. Heating above 200°C leads to considerable structural changes and acidity decrease. The Cs salts from H4PMo 11VO40 possesses stronger acidic sites than those from H9PMo6V6O40. Moreover when the Cs number increases, the acidic properties decrease. The salts with one, two, and three Cs are more unstable with temperature than the salt with 2.5 Cs. The specific surface area for the Cs salts depends on the temperature and Cs number. The prepared heteropolycompounds were used as catalysts for the liquid phase reaction of synthesis of 2,6-dimethyl-p-benzoquinone from 2,6-dimethylphenol, using hydrogen peroxide, with high yields. A selectivity to the p-benzoquinone of 79-59% was obtained when the reaction was catalyzed by Cs salts from the H4PMo11VO40 acid. © 2004 Elsevier B.V. All rights reserved.
Fil: Villabrille, Paula Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Romanelli, Gustavo Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química; Argentina
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Caceres, Carmen Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
description Molybdovanadophosphate heteropolycompounds, H4PMo 11VO40 and H9PMo6V6O 40 and the corresponding Cs salts, were synthesized. The influence of thermal treatment on their Keggin primary structures and their acidic properties were studied. The presence of Keggin units and the V incorporation into these units were observed by TGA, DTA, DRS and FT-IR. H4PMo 11VO40 possesses an acid strength higher than that of the V-free sample and H9PMo6V6O40, at room temperature. Heating above 200°C leads to considerable structural changes and acidity decrease. The Cs salts from H4PMo 11VO40 possesses stronger acidic sites than those from H9PMo6V6O40. Moreover when the Cs number increases, the acidic properties decrease. The salts with one, two, and three Cs are more unstable with temperature than the salt with 2.5 Cs. The specific surface area for the Cs salts depends on the temperature and Cs number. The prepared heteropolycompounds were used as catalysts for the liquid phase reaction of synthesis of 2,6-dimethyl-p-benzoquinone from 2,6-dimethylphenol, using hydrogen peroxide, with high yields. A selectivity to the p-benzoquinone of 79-59% was obtained when the reaction was catalyzed by Cs salts from the H4PMo11VO40 acid. © 2004 Elsevier B.V. All rights reserved.
publishDate 2004
dc.date.none.fl_str_mv 2004-08
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/11336/57792
Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria; Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone; Elsevier Science; Applied Catalysis A: General; 270; 1-2; 8-2004; 101-111
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/57792
identifier_str_mv Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria; Vanadium-substituted Keggin heteropolycompounds as catalysts for ecofriendly liquid phase oxidation of 2,6-dimethylphenol to 2,6-dimethyl-1,4- benzoquinone; Elsevier Science; Applied Catalysis A: General; 270; 1-2; 8-2004; 101-111
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/doi/10.1016/j.apcata.2004.04.028
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X04004004
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
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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