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dc.contributor.author
Vilella, Irene María Julieta
dc.contributor.author
de Miguel, Sergio Ruben
dc.contributor.author
Salinas-Martínez de Lecea, Concepción
dc.contributor.author
Linares-Solano, Ángel
dc.contributor.author
Scelza, Osvaldo Antonio
dc.date.available
2019-06-12T12:39:16Z
dc.date.issued
2005-03
dc.identifier.citation
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
dc.identifier.issn
0926-860X
dc.identifier.uri
http://hdl.handle.net/11336/78036
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Activated Carbon Felt
dc.subject
Activated Carbon Powder
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Characterization Of the Metallic Phase
dc.subject
Citral Hydrogenation
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Supported Ptsn Catalysts
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Catalytic performance in citral hydrogenation and characterization of PtSn catalysts supported on activated carbon felt and powder
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-01T16:14:06Z
dc.journal.volume
281
dc.journal.number
1-2
dc.journal.pagination
247-258
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
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
dc.description.fil
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
dc.description.fil
Fil: Salinas-Martínez de Lecea, Concepción. Universidad de Alicante; España
dc.description.fil
Fil: Linares-Solano, Ángel. Universidad de Alicante; España
dc.description.fil
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
dc.journal.title
Applied Catalysis A: General
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.apcata.2004.11.034


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