Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation

Autores
Fuchs, Vanesa Maria; Pizzio, Luis Rene; Blanco, Mirta Noemi
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New hybrid materials were prepared by the immobilization of aluminum tungstophosphate or tungstosilicate in a polymeric blend formed by polyvinyl alcohol and polyethylene glycol by the freeze-thawing method. The salts retained the Keggin structure of the heteropolyanions during their synthesis and immobilization. Materials with spherical shape and a mean size of 2 mm were obtained, with an almost constant distribution of the salts along the sphere width. Besides, the immobilized salts presented very strong acid sites. The synthesized catalysts showed an excellent yield in anisole acylation with a catalytic activity higher than that of the catalyst obtained from AlCl3 immobilized in the same polymeric matrix, related to a higher effectiveness in acylium ion formation of Keggin heteropolyanions with respect to chloride, due to their soft base nature. © 2007 Elsevier B.V. All rights reserved.
Fil: Fuchs, Vanesa Maria. 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: Pizzio, Luis Rene. 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: Blanco, Mirta Noemi. 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
Aluminum Keggin Salts
Anisole Acylation
Catalysts
Polymer-Immobilized Keggin Salts
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:11336/54149
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylationFuchs, Vanesa MariaPizzio, Luis ReneBlanco, Mirta NoemiAluminum Keggin SaltsAnisole AcylationCatalystsPolymer-Immobilized Keggin Saltshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2New hybrid materials were prepared by the immobilization of aluminum tungstophosphate or tungstosilicate in a polymeric blend formed by polyvinyl alcohol and polyethylene glycol by the freeze-thawing method. The salts retained the Keggin structure of the heteropolyanions during their synthesis and immobilization. Materials with spherical shape and a mean size of 2 mm were obtained, with an almost constant distribution of the salts along the sphere width. Besides, the immobilized salts presented very strong acid sites. The synthesized catalysts showed an excellent yield in anisole acylation with a catalytic activity higher than that of the catalyst obtained from AlCl3 immobilized in the same polymeric matrix, related to a higher effectiveness in acylium ion formation of Keggin heteropolyanions with respect to chloride, due to their soft base nature. © 2007 Elsevier B.V. All rights reserved.Fil: Fuchs, Vanesa Maria. 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: Pizzio, Luis Rene. 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: Blanco, Mirta Noemi. 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 Science2008-04info: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/11336/54149Fuchs, Vanesa Maria; Pizzio, Luis Rene; Blanco, Mirta Noemi; Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation; Elsevier Science; Catalysis Today; 133-135; 1-4; 4-2008; 181-1860920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2007.12.047info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586107008851info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:21Zoai:ri.conicet.gov.ar:11336/54149instacron: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 09:40:21.44CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
title Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
spellingShingle Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
Fuchs, Vanesa Maria
Aluminum Keggin Salts
Anisole Acylation
Catalysts
Polymer-Immobilized Keggin Salts
title_short Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
title_full Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
title_fullStr Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
title_full_unstemmed Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
title_sort Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation
dc.creator.none.fl_str_mv Fuchs, Vanesa Maria
Pizzio, Luis Rene
Blanco, Mirta Noemi
author Fuchs, Vanesa Maria
author_facet Fuchs, Vanesa Maria
Pizzio, Luis Rene
Blanco, Mirta Noemi
author_role author
author2 Pizzio, Luis Rene
Blanco, Mirta Noemi
author2_role author
author
dc.subject.none.fl_str_mv Aluminum Keggin Salts
Anisole Acylation
Catalysts
Polymer-Immobilized Keggin Salts
topic Aluminum Keggin Salts
Anisole Acylation
Catalysts
Polymer-Immobilized Keggin Salts
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv New hybrid materials were prepared by the immobilization of aluminum tungstophosphate or tungstosilicate in a polymeric blend formed by polyvinyl alcohol and polyethylene glycol by the freeze-thawing method. The salts retained the Keggin structure of the heteropolyanions during their synthesis and immobilization. Materials with spherical shape and a mean size of 2 mm were obtained, with an almost constant distribution of the salts along the sphere width. Besides, the immobilized salts presented very strong acid sites. The synthesized catalysts showed an excellent yield in anisole acylation with a catalytic activity higher than that of the catalyst obtained from AlCl3 immobilized in the same polymeric matrix, related to a higher effectiveness in acylium ion formation of Keggin heteropolyanions with respect to chloride, due to their soft base nature. © 2007 Elsevier B.V. All rights reserved.
Fil: Fuchs, Vanesa Maria. 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: Pizzio, Luis Rene. 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: Blanco, Mirta Noemi. 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 New hybrid materials were prepared by the immobilization of aluminum tungstophosphate or tungstosilicate in a polymeric blend formed by polyvinyl alcohol and polyethylene glycol by the freeze-thawing method. The salts retained the Keggin structure of the heteropolyanions during their synthesis and immobilization. Materials with spherical shape and a mean size of 2 mm were obtained, with an almost constant distribution of the salts along the sphere width. Besides, the immobilized salts presented very strong acid sites. The synthesized catalysts showed an excellent yield in anisole acylation with a catalytic activity higher than that of the catalyst obtained from AlCl3 immobilized in the same polymeric matrix, related to a higher effectiveness in acylium ion formation of Keggin heteropolyanions with respect to chloride, due to their soft base nature. © 2007 Elsevier B.V. All rights reserved.
publishDate 2008
dc.date.none.fl_str_mv 2008-04
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/11336/54149
Fuchs, Vanesa Maria; Pizzio, Luis Rene; Blanco, Mirta Noemi; Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation; Elsevier Science; Catalysis Today; 133-135; 1-4; 4-2008; 181-186
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54149
identifier_str_mv Fuchs, Vanesa Maria; Pizzio, Luis Rene; Blanco, Mirta Noemi; Hybrid materials based on aluminum tungstophosphate or tungstosilicate as catalysts in anisole acylation; Elsevier Science; Catalysis Today; 133-135; 1-4; 4-2008; 181-186
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/doi/10.1016/j.cattod.2007.12.047
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586107008851
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 13.069144

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