Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support

Autores
Lederhos, Cecilia Rosa; Badano, Juan Manuel; Carrara, Nicolás Ricardo; Coloma Pascual, Fernando; Almansa, M. Cristina; Liprandi, Domingo Antonio; Quiroga, Monica Esther
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Palladium, platinum and ruthenium supported on activated carbon were used as catalysts for the selective hydrogenation of 1-heptyne, a terminal alkyne. All catalysts were characterized by Temperature Programmed Reduction, X-Ray Diffraction, Transmission Electron Microscopy and X-Ray Photoelectron Spectroscopy. TPR and XPS suggest that the metal in all catalysts is reduced after the pretreatment with H2 at 673 K. The TPR trace of the PdNRX catalyst shows that the support surface groups are greatly modified as a consequence of the use of HNO3 during the catalyst preparation. During the hydrogenation of 1-heptyne, both palladium catalysts were the most active and selective than the platinum and ruthenium catalysts. The activity order of the catalysts is: PdClRX > PdNRX > PtClRX >> RuClRX. This superior performance of PdClRX was attributed in part to the total occupancy of the d electronic levels of the Pd metal that is supposed to promote the rupture of the H2 bond during the hydrogenation reaction. The activity differences between PdClRX and PdNRX catalysts could be attributed to a better accessibility of the substrate to the active sites, as a consequence of steric and electronic effects of the superficial support groups. The order for the selectivity to 1-heptene is: PdClRX = PdNRX > RuClRX > PtClRX, and can be attributed mainly to thermodynamic effects.
Fil: Lederhos, Cecilia Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;
Fil: Badano, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;
Fil: Carrara, Nicolás Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;
Fil: Coloma Pascual, Fernando. Universidad de Alicante. Facultad de Ciencias; España;
Fil: Almansa, M. Cristina. Universidad de Alicante. Facultad de Ciencias; España;
Fil: Liprandi, Domingo Antonio. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Química; Argentina;
Fil: Quiroga, Monica Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina; Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Química; Argentina;
Materia
Activated carbon
Alkyne
Selective hydrogenation
Monometallic 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:11336/1833
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/1833
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As SupportLederhos, Cecilia RosaBadano, Juan ManuelCarrara, Nicolás RicardoColoma Pascual, FernandoAlmansa, M. CristinaLiprandi, Domingo AntonioQuiroga, Monica EstherActivated carbonAlkyneSelective hydrogenationMonometallic catalystshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Palladium, platinum and ruthenium supported on activated carbon were used as catalysts for the selective hydrogenation of 1-heptyne, a terminal alkyne. All catalysts were characterized by Temperature Programmed Reduction, X-Ray Diffraction, Transmission Electron Microscopy and X-Ray Photoelectron Spectroscopy. TPR and XPS suggest that the metal in all catalysts is reduced after the pretreatment with H2 at 673 K. The TPR trace of the PdNRX catalyst shows that the support surface groups are greatly modified as a consequence of the use of HNO3 during the catalyst preparation. During the hydrogenation of 1-heptyne, both palladium catalysts were the most active and selective than the platinum and ruthenium catalysts. The activity order of the catalysts is: PdClRX > PdNRX > PtClRX >> RuClRX. This superior performance of PdClRX was attributed in part to the total occupancy of the d electronic levels of the Pd metal that is supposed to promote the rupture of the H2 bond during the hydrogenation reaction. The activity differences between PdClRX and PdNRX catalysts could be attributed to a better accessibility of the substrate to the active sites, as a consequence of steric and electronic effects of the superficial support groups. The order for the selectivity to 1-heptene is: PdClRX = PdNRX > RuClRX > PtClRX, and can be attributed mainly to thermodynamic effects.Fil: Lederhos, Cecilia Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;Fil: Badano, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;Fil: Carrara, Nicolás Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;Fil: Coloma Pascual, Fernando. Universidad de Alicante. Facultad de Ciencias; España;Fil: Almansa, M. Cristina. Universidad de Alicante. Facultad de Ciencias; España;Fil: Liprandi, Domingo Antonio. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Química; Argentina;Fil: Quiroga, Monica Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina; Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Química; Argentina;Hindawi Publishing Corporation2013-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1833Lederhos, Cecilia Rosa; Badano, Juan Manuel; Carrara, Nicolás Ricardo; Coloma Pascual, Fernando; Almansa, M. Cristina; et al.; Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support; Hindawi Publishing Corporation; Scientific World Journal; 2013; 9-2013; 1-91537-744Xenginfo:eu-repo/semantics/altIdentifier/doi/10.1155/2013/528453info:eu-repo/semantics/altIdentifier/url/http://www.hindawi.com/journals/tswj/2013/528453/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:09Zoai:ri.conicet.gov.ar:11336/1833instacron: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 09:46:11.113CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
title Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
spellingShingle Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
Lederhos, Cecilia Rosa
Activated carbon
Alkyne
Selective hydrogenation
Monometallic catalysts
title_short Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
title_full Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
title_fullStr Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
title_full_unstemmed Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
title_sort Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support
dc.creator.none.fl_str_mv Lederhos, Cecilia Rosa
Badano, Juan Manuel
Carrara, Nicolás Ricardo
Coloma Pascual, Fernando
Almansa, M. Cristina
Liprandi, Domingo Antonio
Quiroga, Monica Esther
author Lederhos, Cecilia Rosa
author_facet Lederhos, Cecilia Rosa
Badano, Juan Manuel
Carrara, Nicolás Ricardo
Coloma Pascual, Fernando
Almansa, M. Cristina
Liprandi, Domingo Antonio
Quiroga, Monica Esther
author_role author
author2 Badano, Juan Manuel
Carrara, Nicolás Ricardo
Coloma Pascual, Fernando
Almansa, M. Cristina
Liprandi, Domingo Antonio
Quiroga, Monica Esther
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Activated carbon
Alkyne
Selective hydrogenation
Monometallic catalysts
topic Activated carbon
Alkyne
Selective hydrogenation
Monometallic 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 Palladium, platinum and ruthenium supported on activated carbon were used as catalysts for the selective hydrogenation of 1-heptyne, a terminal alkyne. All catalysts were characterized by Temperature Programmed Reduction, X-Ray Diffraction, Transmission Electron Microscopy and X-Ray Photoelectron Spectroscopy. TPR and XPS suggest that the metal in all catalysts is reduced after the pretreatment with H2 at 673 K. The TPR trace of the PdNRX catalyst shows that the support surface groups are greatly modified as a consequence of the use of HNO3 during the catalyst preparation. During the hydrogenation of 1-heptyne, both palladium catalysts were the most active and selective than the platinum and ruthenium catalysts. The activity order of the catalysts is: PdClRX > PdNRX > PtClRX >> RuClRX. This superior performance of PdClRX was attributed in part to the total occupancy of the d electronic levels of the Pd metal that is supposed to promote the rupture of the H2 bond during the hydrogenation reaction. The activity differences between PdClRX and PdNRX catalysts could be attributed to a better accessibility of the substrate to the active sites, as a consequence of steric and electronic effects of the superficial support groups. The order for the selectivity to 1-heptene is: PdClRX = PdNRX > RuClRX > PtClRX, and can be attributed mainly to thermodynamic effects.
Fil: Lederhos, Cecilia Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;
Fil: Badano, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;
Fil: Carrara, Nicolás Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina;
Fil: Coloma Pascual, Fernando. Universidad de Alicante. Facultad de Ciencias; España;
Fil: Almansa, M. Cristina. Universidad de Alicante. Facultad de Ciencias; España;
Fil: Liprandi, Domingo Antonio. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Química; Argentina;
Fil: Quiroga, Monica Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina; Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Química; Argentina;
description Palladium, platinum and ruthenium supported on activated carbon were used as catalysts for the selective hydrogenation of 1-heptyne, a terminal alkyne. All catalysts were characterized by Temperature Programmed Reduction, X-Ray Diffraction, Transmission Electron Microscopy and X-Ray Photoelectron Spectroscopy. TPR and XPS suggest that the metal in all catalysts is reduced after the pretreatment with H2 at 673 K. The TPR trace of the PdNRX catalyst shows that the support surface groups are greatly modified as a consequence of the use of HNO3 during the catalyst preparation. During the hydrogenation of 1-heptyne, both palladium catalysts were the most active and selective than the platinum and ruthenium catalysts. The activity order of the catalysts is: PdClRX > PdNRX > PtClRX >> RuClRX. This superior performance of PdClRX was attributed in part to the total occupancy of the d electronic levels of the Pd metal that is supposed to promote the rupture of the H2 bond during the hydrogenation reaction. The activity differences between PdClRX and PdNRX catalysts could be attributed to a better accessibility of the substrate to the active sites, as a consequence of steric and electronic effects of the superficial support groups. The order for the selectivity to 1-heptene is: PdClRX = PdNRX > RuClRX > PtClRX, and can be attributed mainly to thermodynamic effects.
publishDate 2013
dc.date.none.fl_str_mv 2013-09
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/11336/1833
Lederhos, Cecilia Rosa; Badano, Juan Manuel; Carrara, Nicolás Ricardo; Coloma Pascual, Fernando; Almansa, M. Cristina; et al.; Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support; Hindawi Publishing Corporation; Scientific World Journal; 2013; 9-2013; 1-9
1537-744X
url http://hdl.handle.net/11336/1833
identifier_str_mv Lederhos, Cecilia Rosa; Badano, Juan Manuel; Carrara, Nicolás Ricardo; Coloma Pascual, Fernando; Almansa, M. Cristina; et al.; Metal And Precursor Effect During 1-Heptyne Selective Hydrogenation Using An Activated Carbon As Support; Hindawi Publishing Corporation; Scientific World Journal; 2013; 9-2013; 1-9
1537-744X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1155/2013/528453
info:eu-repo/semantics/altIdentifier/url/http://www.hindawi.com/journals/tswj/2013/528453/
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
dc.publisher.none.fl_str_mv Hindawi Publishing Corporation
publisher.none.fl_str_mv Hindawi Publishing Corporation
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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