Characterization of transition-metal oxides promoted with oxoanions by means of test reactions

Autores
Benitez, Viviana Monica; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis; Grau, Javier Mario; Parera, Jose
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The catalytic activity of some transition-metal oxides known to develop strong acidity by promotion with oxoanions was compared with a set of acid-catalyzed test reactions (isomerization of n-butane, isobutene, n-hexane, and cyclohexane). They were further characterized by thermally programmed desorption of pyridine and 2,4,6-trimethylpyridine, X-ray diffraction, and sortometry. SO42--ZrO2) SO4 2--TiO2, SO42--Fe2O 3, WO3-ZrO2, WO3-TiO2, WO3-Fe2O3, B2O3-ZrO 2, B2O3-TiO2, and B 2O3-Fe2O3 were synthesized by impregnation of the oxoanion over a fresh xerogel of the transition-metal hydroxide. Certain promoter-dependent orders, irrespective of the support, could be elucidated, mainly that the number of acid sites generated by promotion follows the order S, W > B. The proportion of strong acid sites is most important for S and B. The most active catalysts are always the zirconia ones, while the Fe2O3 catalysts are the least active.
Fil: Benitez, Viviana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Parera, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Materia
Transition-Metal Oxides
Strong Acidity
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:11336/78038
Acceder
id CONICETDig_f6870fda4a9212a2bba75bfa12ef73d4
oai_identifier_str oai:ri.conicet.gov.ar:11336/78038
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization of transition-metal oxides promoted with oxoanions by means of test reactionsBenitez, Viviana MonicaYori, Juan CarlosVera, Carlos RomanPieck, Carlos LuisGrau, Javier MarioParera, JoseTransition-Metal OxidesStrong Acidityhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2The catalytic activity of some transition-metal oxides known to develop strong acidity by promotion with oxoanions was compared with a set of acid-catalyzed test reactions (isomerization of n-butane, isobutene, n-hexane, and cyclohexane). They were further characterized by thermally programmed desorption of pyridine and 2,4,6-trimethylpyridine, X-ray diffraction, and sortometry. SO42--ZrO2) SO4 2--TiO2, SO42--Fe2O 3, WO3-ZrO2, WO3-TiO2, WO3-Fe2O3, B2O3-ZrO 2, B2O3-TiO2, and B 2O3-Fe2O3 were synthesized by impregnation of the oxoanion over a fresh xerogel of the transition-metal hydroxide. Certain promoter-dependent orders, irrespective of the support, could be elucidated, mainly that the number of acid sites generated by promotion follows the order S, W > B. The proportion of strong acid sites is most important for S and B. The most active catalysts are always the zirconia ones, while the Fe2O3 catalysts are the least active.Fil: Benitez, Viviana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Parera, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaAmerican Chemical Society2005-03info: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/11336/78038Benitez, Viviana Monica; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis; Grau, Javier Mario; et al.; Characterization of transition-metal oxides promoted with oxoanions by means of test reactions; American Chemical Society; Industrial & Engineering Chemical Research; 44; 6; 3-2005; 1716-17210888-5885CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ie049233finfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:41:15Zoai:ri.conicet.gov.ar:11336/78038instacron: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:34982025-11-12 09:41:15.875CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
title Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
spellingShingle Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
Benitez, Viviana Monica
Transition-Metal Oxides
Strong Acidity
title_short Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
title_full Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
title_fullStr Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
title_full_unstemmed Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
title_sort Characterization of transition-metal oxides promoted with oxoanions by means of test reactions
dc.creator.none.fl_str_mv Benitez, Viviana Monica
Yori, Juan Carlos
Vera, Carlos Roman
Pieck, Carlos Luis
Grau, Javier Mario
Parera, Jose
author Benitez, Viviana Monica
author_facet Benitez, Viviana Monica
Yori, Juan Carlos
Vera, Carlos Roman
Pieck, Carlos Luis
Grau, Javier Mario
Parera, Jose
author_role author
author2 Yori, Juan Carlos
Vera, Carlos Roman
Pieck, Carlos Luis
Grau, Javier Mario
Parera, Jose
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Transition-Metal Oxides
Strong Acidity
topic Transition-Metal Oxides
Strong Acidity
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The catalytic activity of some transition-metal oxides known to develop strong acidity by promotion with oxoanions was compared with a set of acid-catalyzed test reactions (isomerization of n-butane, isobutene, n-hexane, and cyclohexane). They were further characterized by thermally programmed desorption of pyridine and 2,4,6-trimethylpyridine, X-ray diffraction, and sortometry. SO42--ZrO2) SO4 2--TiO2, SO42--Fe2O 3, WO3-ZrO2, WO3-TiO2, WO3-Fe2O3, B2O3-ZrO 2, B2O3-TiO2, and B 2O3-Fe2O3 were synthesized by impregnation of the oxoanion over a fresh xerogel of the transition-metal hydroxide. Certain promoter-dependent orders, irrespective of the support, could be elucidated, mainly that the number of acid sites generated by promotion follows the order S, W > B. The proportion of strong acid sites is most important for S and B. The most active catalysts are always the zirconia ones, while the Fe2O3 catalysts are the least active.
Fil: Benitez, Viviana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Parera, Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
description The catalytic activity of some transition-metal oxides known to develop strong acidity by promotion with oxoanions was compared with a set of acid-catalyzed test reactions (isomerization of n-butane, isobutene, n-hexane, and cyclohexane). They were further characterized by thermally programmed desorption of pyridine and 2,4,6-trimethylpyridine, X-ray diffraction, and sortometry. SO42--ZrO2) SO4 2--TiO2, SO42--Fe2O 3, WO3-ZrO2, WO3-TiO2, WO3-Fe2O3, B2O3-ZrO 2, B2O3-TiO2, and B 2O3-Fe2O3 were synthesized by impregnation of the oxoanion over a fresh xerogel of the transition-metal hydroxide. Certain promoter-dependent orders, irrespective of the support, could be elucidated, mainly that the number of acid sites generated by promotion follows the order S, W > B. The proportion of strong acid sites is most important for S and B. The most active catalysts are always the zirconia ones, while the Fe2O3 catalysts are the least active.
publishDate 2005
dc.date.none.fl_str_mv 2005-03
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/11336/78038
Benitez, Viviana Monica; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis; Grau, Javier Mario; et al.; Characterization of transition-metal oxides promoted with oxoanions by means of test reactions; American Chemical Society; Industrial & Engineering Chemical Research; 44; 6; 3-2005; 1716-1721
0888-5885
CONICET Digital
CONICET
url http://hdl.handle.net/11336/78038
identifier_str_mv Benitez, Viviana Monica; Yori, Juan Carlos; Vera, Carlos Roman; Pieck, Carlos Luis; Grau, Javier Mario; et al.; Characterization of transition-metal oxides promoted with oxoanions by means of test reactions; American Chemical Society; Industrial & Engineering Chemical Research; 44; 6; 3-2005; 1716-1721
0888-5885
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/ie049233f
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 American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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 13.25334

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