Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder

Autores
Vilella, Irene María Julieta; de Miguel, Sergio Ruben; Salinas-Martínez de Lecea, Concepción; Linares-Solano, Ángel; Scelza, Osvaldo Antonio
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The liquid phase citral hydrogenation carried out at 70 °C and atmospheric pressure over Pt and PtSn catalysts supported on both activated carbon powder (C) and felt (ACf), was investigated. It was found that the addition of Sn to the Pt catalysts increases the reaction rate of the citral hydrogenation, this influence being more important for carbon-based catalysts. Besides, the Sn addition sharply enhances the selectivity to double unsaturated alcohols (nerol and geraniol) for both catalyst series. The secondary products were the unsaturated aldehyde (citronellal), the single-unsaturated alcohol (citronellol) and the cyclization products (isopulegol and menthol). The performance of these catalysts in the citral hydrogenation was related with the characteristics of the metallic phase, which were determined by test reactions of the metallic phase (cyclohexane dehydrogenation and cyclopentane hydrogenolysis), H2 chemisorption, TPR and XPS in order to postulate the models of the metallic surface. In this sense, a fraction of ionic Sn (detected by XPS) would be deposited near Pt aggregates, thus enhancing the polarization of the carbonyl group of the citral molecule, and leading to an increase in the selectivity to nerol and geraniol. This effect appears to be different depending on the support type.
Fil: Vilella, Irene María Julieta. 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: de Miguel, Sergio Ruben. 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: Salinas-Martínez de Lecea, Concepción. Universidad de Alicante; España
Fil: Linares-Solano, Ángel. Universidad de Alicante; España
Fil: Scelza, Osvaldo Antonio. 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
Activated Carbon Felt
Activated Carbon Powder
Characterization Of the Metallic Phase
Citral Hydrogenation
Supported Ptsn Catalysts
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:11336/78036
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/78036
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powderVilella, Irene María Julietade Miguel, Sergio RubenSalinas-Martínez de Lecea, ConcepciónLinares-Solano, ÁngelScelza, Osvaldo AntonioActivated Carbon FeltActivated Carbon PowderCharacterization Of the Metallic PhaseCitral HydrogenationSupported Ptsn Catalystshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The liquid phase citral hydrogenation carried out at 70 °C and atmospheric pressure over Pt and PtSn catalysts supported on both activated carbon powder (C) and felt (ACf), was investigated. It was found that the addition of Sn to the Pt catalysts increases the reaction rate of the citral hydrogenation, this influence being more important for carbon-based catalysts. Besides, the Sn addition sharply enhances the selectivity to double unsaturated alcohols (nerol and geraniol) for both catalyst series. The secondary products were the unsaturated aldehyde (citronellal), the single-unsaturated alcohol (citronellol) and the cyclization products (isopulegol and menthol). The performance of these catalysts in the citral hydrogenation was related with the characteristics of the metallic phase, which were determined by test reactions of the metallic phase (cyclohexane dehydrogenation and cyclopentane hydrogenolysis), H2 chemisorption, TPR and XPS in order to postulate the models of the metallic surface. In this sense, a fraction of ionic Sn (detected by XPS) would be deposited near Pt aggregates, thus enhancing the polarization of the carbonyl group of the citral molecule, and leading to an increase in the selectivity to nerol and geraniol. This effect appears to be different depending on the support type.Fil: Vilella, Irene María Julieta. 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: de Miguel, Sergio Ruben. 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: Salinas-Martínez de Lecea, Concepción. Universidad de Alicante; EspañaFil: Linares-Solano, Ángel. Universidad de Alicante; EspañaFil: Scelza, Osvaldo Antonio. 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"; ArgentinaElsevier Science2005-03info: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/11336/78036Vilella, Irene María Julieta; de Miguel, Sergio Ruben; Salinas-Martínez de Lecea, Concepción; Linares-Solano, Ángel; Scelza, Osvaldo Antonio; Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder; Elsevier Science; Applied Catalysis A: General; 281; 1-2; 3-2005; 247-2580926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2004.11.034info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:26Zoai:ri.conicet.gov.ar:11336/78036instacron: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:34982025-09-03 10:00:26.552CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
title Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
spellingShingle Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
Vilella, Irene María Julieta
Activated Carbon Felt
Activated Carbon Powder
Characterization Of the Metallic Phase
Citral Hydrogenation
Supported Ptsn Catalysts
title_short Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
title_full Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
title_fullStr Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
title_full_unstemmed Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
title_sort Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
dc.creator.none.fl_str_mv Vilella, Irene María Julieta
de Miguel, Sergio Ruben
Salinas-Martínez de Lecea, Concepción
Linares-Solano, Ángel
Scelza, Osvaldo Antonio
author Vilella, Irene María Julieta
author_facet Vilella, Irene María Julieta
de Miguel, Sergio Ruben
Salinas-Martínez de Lecea, Concepción
Linares-Solano, Ángel
Scelza, Osvaldo Antonio
author_role author
author2 de Miguel, Sergio Ruben
Salinas-Martínez de Lecea, Concepción
Linares-Solano, Ángel
Scelza, Osvaldo Antonio
author2_role author
author
author
author
dc.subject.none.fl_str_mv Activated Carbon Felt
Activated Carbon Powder
Characterization Of the Metallic Phase
Citral Hydrogenation
Supported Ptsn Catalysts
topic Activated Carbon Felt
Activated Carbon Powder
Characterization Of the Metallic Phase
Citral Hydrogenation
Supported Ptsn Catalysts
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 liquid phase citral hydrogenation carried out at 70 °C and atmospheric pressure over Pt and PtSn catalysts supported on both activated carbon powder (C) and felt (ACf), was investigated. It was found that the addition of Sn to the Pt catalysts increases the reaction rate of the citral hydrogenation, this influence being more important for carbon-based catalysts. Besides, the Sn addition sharply enhances the selectivity to double unsaturated alcohols (nerol and geraniol) for both catalyst series. The secondary products were the unsaturated aldehyde (citronellal), the single-unsaturated alcohol (citronellol) and the cyclization products (isopulegol and menthol). The performance of these catalysts in the citral hydrogenation was related with the characteristics of the metallic phase, which were determined by test reactions of the metallic phase (cyclohexane dehydrogenation and cyclopentane hydrogenolysis), H2 chemisorption, TPR and XPS in order to postulate the models of the metallic surface. In this sense, a fraction of ionic Sn (detected by XPS) would be deposited near Pt aggregates, thus enhancing the polarization of the carbonyl group of the citral molecule, and leading to an increase in the selectivity to nerol and geraniol. This effect appears to be different depending on the support type.
Fil: Vilella, Irene María Julieta. 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: de Miguel, Sergio Ruben. 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: Salinas-Martínez de Lecea, Concepción. Universidad de Alicante; España
Fil: Linares-Solano, Ángel. Universidad de Alicante; España
Fil: Scelza, Osvaldo Antonio. 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 liquid phase citral hydrogenation carried out at 70 °C and atmospheric pressure over Pt and PtSn catalysts supported on both activated carbon powder (C) and felt (ACf), was investigated. It was found that the addition of Sn to the Pt catalysts increases the reaction rate of the citral hydrogenation, this influence being more important for carbon-based catalysts. Besides, the Sn addition sharply enhances the selectivity to double unsaturated alcohols (nerol and geraniol) for both catalyst series. The secondary products were the unsaturated aldehyde (citronellal), the single-unsaturated alcohol (citronellol) and the cyclization products (isopulegol and menthol). The performance of these catalysts in the citral hydrogenation was related with the characteristics of the metallic phase, which were determined by test reactions of the metallic phase (cyclohexane dehydrogenation and cyclopentane hydrogenolysis), H2 chemisorption, TPR and XPS in order to postulate the models of the metallic surface. In this sense, a fraction of ionic Sn (detected by XPS) would be deposited near Pt aggregates, thus enhancing the polarization of the carbonyl group of the citral molecule, and leading to an increase in the selectivity to nerol and geraniol. This effect appears to be different depending on the support type.
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/11336/78036
Vilella, Irene María Julieta; de Miguel, Sergio Ruben; Salinas-Martínez de Lecea, Concepción; Linares-Solano, Ángel; Scelza, Osvaldo Antonio; Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder; Elsevier Science; Applied Catalysis A: General; 281; 1-2; 3-2005; 247-258
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/78036
identifier_str_mv Vilella, Irene María Julieta; de Miguel, Sergio Ruben; Salinas-Martínez de Lecea, Concepción; Linares-Solano, Ángel; Scelza, Osvaldo Antonio; Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder; Elsevier Science; Applied Catalysis A: General; 281; 1-2; 3-2005; 247-258
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.2004.11.034
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 13.13397

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