Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone

Autores
Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Supported catalysts were prepared by in situ deposition of the cesium salt of H4PMo11VO40. Commercial silica was impregnated to incipient wetness with an aqueous solution of CsNO3. The dried and calcined solid was then impregnated an aqueous solution of H4PMo11VO40. Solids with 40% and 7% (w/w) of Cs3HPMo11VO40 were obtained. To compare on behavior catalytic, a catalyst was prepared by silica impregnation with an aqueous solution of H4PMo11VO40 (40%, w/w), using the incipient wetness technique. Impregnated silica particles showed a homogeneous distribution by scanning electron microscope (SEM). The Keggin structure was preserved for the salt in those catalysts according to the FT-IR and DRS characterization. The acidity of the solids with 40% and 7% (w/w) of Cs3HPMo11VO4 was greater than that of the silica but lower than that of bulk salt. The catalysts were used in the oxidation of 2,6-dimethylphenol with aqueous hydrogen peroxide, in acetonitrile at 20 °C. The reaction was followed by UV-vis spectroscopy. The phenol conversion was 35% at 4 h for H4PMo11VO40/SiO2, 20% at 2 h and 29% at 135 h for 7% Cs3HPMo11VO4/SiO2, and 83% at 98 h for 40% Cs3HPMo11VO4/SiO2. The behavior of the latter was also studied by HPLC technique. Similar results were achieved with both techniques. The Cs3HPMo11VO4/SiO2 catalysts were almost totally insoluble in the reaction mixture. © 2007 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 ; 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 ; 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 ; 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 ; Argentina
Materia
2,6-Dimethyl-1,4-Benzoquinone
2,6-Dimethylphenol Oxidation
Ecofriendly Catalysts
Supported Heteropolycompounds
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:11336/54039
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/54039
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinoneVillabrille, Paula IsabelRomanelli, Gustavo PabloVazquez, Patricia GracielaCaceres, Carmen Victoria2,6-Dimethyl-1,4-Benzoquinone2,6-Dimethylphenol OxidationEcofriendly CatalystsSupported Heteropolycompoundshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Supported catalysts were prepared by in situ deposition of the cesium salt of H4PMo11VO40. Commercial silica was impregnated to incipient wetness with an aqueous solution of CsNO3. The dried and calcined solid was then impregnated an aqueous solution of H4PMo11VO40. Solids with 40% and 7% (w/w) of Cs3HPMo11VO40 were obtained. To compare on behavior catalytic, a catalyst was prepared by silica impregnation with an aqueous solution of H4PMo11VO40 (40%, w/w), using the incipient wetness technique. Impregnated silica particles showed a homogeneous distribution by scanning electron microscope (SEM). The Keggin structure was preserved for the salt in those catalysts according to the FT-IR and DRS characterization. The acidity of the solids with 40% and 7% (w/w) of Cs3HPMo11VO4 was greater than that of the silica but lower than that of bulk salt. The catalysts were used in the oxidation of 2,6-dimethylphenol with aqueous hydrogen peroxide, in acetonitrile at 20 °C. The reaction was followed by UV-vis spectroscopy. The phenol conversion was 35% at 4 h for H4PMo11VO40/SiO2, 20% at 2 h and 29% at 135 h for 7% Cs3HPMo11VO4/SiO2, and 83% at 98 h for 40% Cs3HPMo11VO4/SiO2. The behavior of the latter was also studied by HPLC technique. Similar results were achieved with both techniques. The Cs3HPMo11VO4/SiO2 catalysts were almost totally insoluble in the reaction mixture. © 2007 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 ; 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 ; 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 ; 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 ; ArgentinaElsevier Science2008-01info: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/11336/54039Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria; Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone; Elsevier Science; Applied Catalysis A: General; 334; 1-2; 1-2008; 374-3800926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2007.10.025info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X07006606info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:58:42Zoai:ri.conicet.gov.ar:11336/54039instacron: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 14:58:42.565CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
title Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
spellingShingle Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
Villabrille, Paula Isabel
2,6-Dimethyl-1,4-Benzoquinone
2,6-Dimethylphenol Oxidation
Ecofriendly Catalysts
Supported Heteropolycompounds
title_short Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
title_full Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
title_fullStr Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
title_full_unstemmed Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
title_sort Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation 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-Benzoquinone
2,6-Dimethylphenol Oxidation
Ecofriendly Catalysts
Supported Heteropolycompounds
topic 2,6-Dimethyl-1,4-Benzoquinone
2,6-Dimethylphenol Oxidation
Ecofriendly Catalysts
Supported Heteropolycompounds
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Supported catalysts were prepared by in situ deposition of the cesium salt of H4PMo11VO40. Commercial silica was impregnated to incipient wetness with an aqueous solution of CsNO3. The dried and calcined solid was then impregnated an aqueous solution of H4PMo11VO40. Solids with 40% and 7% (w/w) of Cs3HPMo11VO40 were obtained. To compare on behavior catalytic, a catalyst was prepared by silica impregnation with an aqueous solution of H4PMo11VO40 (40%, w/w), using the incipient wetness technique. Impregnated silica particles showed a homogeneous distribution by scanning electron microscope (SEM). The Keggin structure was preserved for the salt in those catalysts according to the FT-IR and DRS characterization. The acidity of the solids with 40% and 7% (w/w) of Cs3HPMo11VO4 was greater than that of the silica but lower than that of bulk salt. The catalysts were used in the oxidation of 2,6-dimethylphenol with aqueous hydrogen peroxide, in acetonitrile at 20 °C. The reaction was followed by UV-vis spectroscopy. The phenol conversion was 35% at 4 h for H4PMo11VO40/SiO2, 20% at 2 h and 29% at 135 h for 7% Cs3HPMo11VO4/SiO2, and 83% at 98 h for 40% Cs3HPMo11VO4/SiO2. The behavior of the latter was also studied by HPLC technique. Similar results were achieved with both techniques. The Cs3HPMo11VO4/SiO2 catalysts were almost totally insoluble in the reaction mixture. © 2007 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 ; 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 ; 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 ; 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 ; Argentina
description Supported catalysts were prepared by in situ deposition of the cesium salt of H4PMo11VO40. Commercial silica was impregnated to incipient wetness with an aqueous solution of CsNO3. The dried and calcined solid was then impregnated an aqueous solution of H4PMo11VO40. Solids with 40% and 7% (w/w) of Cs3HPMo11VO40 were obtained. To compare on behavior catalytic, a catalyst was prepared by silica impregnation with an aqueous solution of H4PMo11VO40 (40%, w/w), using the incipient wetness technique. Impregnated silica particles showed a homogeneous distribution by scanning electron microscope (SEM). The Keggin structure was preserved for the salt in those catalysts according to the FT-IR and DRS characterization. The acidity of the solids with 40% and 7% (w/w) of Cs3HPMo11VO4 was greater than that of the silica but lower than that of bulk salt. The catalysts were used in the oxidation of 2,6-dimethylphenol with aqueous hydrogen peroxide, in acetonitrile at 20 °C. The reaction was followed by UV-vis spectroscopy. The phenol conversion was 35% at 4 h for H4PMo11VO40/SiO2, 20% at 2 h and 29% at 135 h for 7% Cs3HPMo11VO4/SiO2, and 83% at 98 h for 40% Cs3HPMo11VO4/SiO2. The behavior of the latter was also studied by HPLC technique. Similar results were achieved with both techniques. The Cs3HPMo11VO4/SiO2 catalysts were almost totally insoluble in the reaction mixture. © 2007 Elsevier B.V. All rights reserved.
publishDate 2008
dc.date.none.fl_str_mv 2008-01
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/11336/54039
Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria; Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone; Elsevier Science; Applied Catalysis A: General; 334; 1-2; 1-2008; 374-380
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54039
identifier_str_mv Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria; Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone; Elsevier Science; Applied Catalysis A: General; 334; 1-2; 1-2008; 374-380
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.2007.10.025
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X07006606
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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