Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening

Autores
Benitez, Viviana Monica; de Lima, Simone; Rangel, Maria do Carmo; Ruiz, Doriz; Reyes, Patricio; Pieck, Carlos Luis
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ring opening of naphthenic rings on Pt-Ir catalysts supported on Nb2O5 was studied in this work. The catalysts were prepared by impregnation. In the case ofthe bimetallic catalyst,the total metallic load was kept constant while varying the individual quantity of impregnated Ir and Pt. The samples were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, N2 sorption, NH3 TPD and model reactions (cyclohexane dehydrogenation and cyclopentane hydrogenolysis). The decalin ring opening capacity of the catalysts was evaluated. Monometallic Ir and Pt catalysts as well as bimetallic catalysts were active towards cyclohexane dehydrogenation and cyclopentane hydrogenolysis. Regarding the bimetallic catalysts, an increase on the Pt content promoted the cyclohexane dehydrogenationwhile hindering the hydrogenolytic activity. In the selective ring opening of decalin, the bimetallic catalysts presented activities comparable to the monometallic catalysts. Nonetheless, Ir(0.3%)/Nb2O5 catalyst presented the highest selectivity towards ring opening products with the lowest selectivity towards dehydrogenated products.
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: de Lima, Simone. Universidade Federal da Bahia; Brasil
Fil: Rangel, Maria do Carmo. Universidade Federal da Bahia; Brasil
Fil: Ruiz, Doriz. Universidad de Concepción; Chile
Fil: Reyes, Patricio. Universidad de Concepción; Chile
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
Materia
Decalin
Platinum
Iridium
Niobium
Sro
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:11336/46942
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring openingBenitez, Viviana Monicade Lima, SimoneRangel, Maria do CarmoRuiz, DorizReyes, PatricioPieck, Carlos LuisDecalinPlatinumIridiumNiobiumSrohttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Ring opening of naphthenic rings on Pt-Ir catalysts supported on Nb2O5 was studied in this work. The catalysts were prepared by impregnation. In the case ofthe bimetallic catalyst,the total metallic load was kept constant while varying the individual quantity of impregnated Ir and Pt. The samples were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, N2 sorption, NH3 TPD and model reactions (cyclohexane dehydrogenation and cyclopentane hydrogenolysis). The decalin ring opening capacity of the catalysts was evaluated. Monometallic Ir and Pt catalysts as well as bimetallic catalysts were active towards cyclohexane dehydrogenation and cyclopentane hydrogenolysis. Regarding the bimetallic catalysts, an increase on the Pt content promoted the cyclohexane dehydrogenationwhile hindering the hydrogenolytic activity. In the selective ring opening of decalin, the bimetallic catalysts presented activities comparable to the monometallic catalysts. Nonetheless, Ir(0.3%)/Nb2O5 catalyst presented the highest selectivity towards ring opening products with the lowest selectivity towards dehydrogenated products.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: de Lima, Simone. Universidade Federal da Bahia; BrasilFil: Rangel, Maria do Carmo. Universidade Federal da Bahia; BrasilFil: Ruiz, Doriz. Universidad de Concepción; ChileFil: Reyes, Patricio. Universidad de Concepción; ChileFil: 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"; ArgentinaElsevier Science2017-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/zipapplication/pdfhttp://hdl.handle.net/11336/46942Benitez, Viviana Monica; de Lima, Simone; Rangel, Maria do Carmo; Ruiz, Doriz; Reyes, Patricio; et al.; Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening; Elsevier Science; Catalysis Today; 289; 7-2017; 53-610920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2016.10.004info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586116306241info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:08Zoai:ri.conicet.gov.ar:11336/46942instacron: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 09:47:08.599CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
title Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
spellingShingle Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
Benitez, Viviana Monica
Decalin
Platinum
Iridium
Niobium
Sro
title_short Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
title_full Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
title_fullStr Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
title_full_unstemmed Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
title_sort Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening
dc.creator.none.fl_str_mv Benitez, Viviana Monica
de Lima, Simone
Rangel, Maria do Carmo
Ruiz, Doriz
Reyes, Patricio
Pieck, Carlos Luis
author Benitez, Viviana Monica
author_facet Benitez, Viviana Monica
de Lima, Simone
Rangel, Maria do Carmo
Ruiz, Doriz
Reyes, Patricio
Pieck, Carlos Luis
author_role author
author2 de Lima, Simone
Rangel, Maria do Carmo
Ruiz, Doriz
Reyes, Patricio
Pieck, Carlos Luis
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Decalin
Platinum
Iridium
Niobium
Sro
topic Decalin
Platinum
Iridium
Niobium
Sro
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Ring opening of naphthenic rings on Pt-Ir catalysts supported on Nb2O5 was studied in this work. The catalysts were prepared by impregnation. In the case ofthe bimetallic catalyst,the total metallic load was kept constant while varying the individual quantity of impregnated Ir and Pt. The samples were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, N2 sorption, NH3 TPD and model reactions (cyclohexane dehydrogenation and cyclopentane hydrogenolysis). The decalin ring opening capacity of the catalysts was evaluated. Monometallic Ir and Pt catalysts as well as bimetallic catalysts were active towards cyclohexane dehydrogenation and cyclopentane hydrogenolysis. Regarding the bimetallic catalysts, an increase on the Pt content promoted the cyclohexane dehydrogenationwhile hindering the hydrogenolytic activity. In the selective ring opening of decalin, the bimetallic catalysts presented activities comparable to the monometallic catalysts. Nonetheless, Ir(0.3%)/Nb2O5 catalyst presented the highest selectivity towards ring opening products with the lowest selectivity towards dehydrogenated products.
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: de Lima, Simone. Universidade Federal da Bahia; Brasil
Fil: Rangel, Maria do Carmo. Universidade Federal da Bahia; Brasil
Fil: Ruiz, Doriz. Universidad de Concepción; Chile
Fil: Reyes, Patricio. Universidad de Concepción; Chile
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
description Ring opening of naphthenic rings on Pt-Ir catalysts supported on Nb2O5 was studied in this work. The catalysts were prepared by impregnation. In the case ofthe bimetallic catalyst,the total metallic load was kept constant while varying the individual quantity of impregnated Ir and Pt. The samples were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, N2 sorption, NH3 TPD and model reactions (cyclohexane dehydrogenation and cyclopentane hydrogenolysis). The decalin ring opening capacity of the catalysts was evaluated. Monometallic Ir and Pt catalysts as well as bimetallic catalysts were active towards cyclohexane dehydrogenation and cyclopentane hydrogenolysis. Regarding the bimetallic catalysts, an increase on the Pt content promoted the cyclohexane dehydrogenationwhile hindering the hydrogenolytic activity. In the selective ring opening of decalin, the bimetallic catalysts presented activities comparable to the monometallic catalysts. Nonetheless, Ir(0.3%)/Nb2O5 catalyst presented the highest selectivity towards ring opening products with the lowest selectivity towards dehydrogenated products.
publishDate 2017
dc.date.none.fl_str_mv 2017-07
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/11336/46942
Benitez, Viviana Monica; de Lima, Simone; Rangel, Maria do Carmo; Ruiz, Doriz; Reyes, Patricio; et al.; Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening; Elsevier Science; Catalysis Today; 289; 7-2017; 53-61
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/46942
identifier_str_mv Benitez, Viviana Monica; de Lima, Simone; Rangel, Maria do Carmo; Ruiz, Doriz; Reyes, Patricio; et al.; Influence of the metallic content on Pt-Ir/Nb 2 O 5 catalysts for decalin selective ring opening; Elsevier Science; Catalysis Today; 289; 7-2017; 53-61
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.2016.10.004
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586116306241
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/zip
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 13.070432

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