Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts

Autores
Pieck, Carlos Luis; Vera, Carlos Roman; Parera, Jose; Giménez, Gustavo N.; Serra, Luciano R.; Carvalho, Luciene S.; Rangel, Maria C.
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The chemisorption of CO over mono-, bi- and trimetallic naphtha reforming catalysts containing Pt, Re and Sn in the metallic function was studied. The temperature-programmed reduction (TPR) results show that there are important interactions among the metals. The CO chemisorption experiments were performed in a pulse equipment. Pulses of the adsorbate (CO) were successively injected to the system until saturation and the exposed Pt was determined from the amount of adsorbate irreversibly adsorbed. The exposed or accessible Pt obtained was compared with that one determined by the classical static method and it was also correlated with the results of catalytic activity of the metal function (cyclohexane dehydrogenation at 400 °C, 0.1 MPa, H2/CH = 30). The CO chemisorption results indicate that it is possible to determine in an easy way the metallic dispersion of Pt/Al2O3 monometallic catalysts and that the same method can be applied to measure the exposed Pt on bimetallic Pt-Re and Pt-Sn catalysts and trimetallic Pt-Re-Sn catalysts. The values obtained from CO adsorption have very good repeatability and are proportional to the dehydrogenating activity of the catalyst. The latter correlation has a few outliners which were attributed to the electronic effects exerted by Sn and Re over Pt that modify differently the metal activity and the capacity to chemisorb CO.
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: 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: 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
Fil: Giménez, Gustavo N.. 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: Serra, Luciano R.. 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: Carvalho, Luciene S.. Universidade Federal da Bahia; Brasil
Fil: Rangel, Maria C.. Universidade Federal da Bahia; Brasil
Materia
Dispersion
Naphtha Reforming
Pt-Re-Sn
Trimetallic Catalysts
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/73942
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/73942
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalystsPieck, Carlos LuisVera, Carlos RomanParera, JoseGiménez, Gustavo N.Serra, Luciano R.Carvalho, Luciene S.Rangel, Maria C.DispersionNaphtha ReformingPt-Re-SnTrimetallic Catalystshttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2The chemisorption of CO over mono-, bi- and trimetallic naphtha reforming catalysts containing Pt, Re and Sn in the metallic function was studied. The temperature-programmed reduction (TPR) results show that there are important interactions among the metals. The CO chemisorption experiments were performed in a pulse equipment. Pulses of the adsorbate (CO) were successively injected to the system until saturation and the exposed Pt was determined from the amount of adsorbate irreversibly adsorbed. The exposed or accessible Pt obtained was compared with that one determined by the classical static method and it was also correlated with the results of catalytic activity of the metal function (cyclohexane dehydrogenation at 400 °C, 0.1 MPa, H2/CH = 30). The CO chemisorption results indicate that it is possible to determine in an easy way the metallic dispersion of Pt/Al2O3 monometallic catalysts and that the same method can be applied to measure the exposed Pt on bimetallic Pt-Re and Pt-Sn catalysts and trimetallic Pt-Re-Sn catalysts. The values obtained from CO adsorption have very good repeatability and are proportional to the dehydrogenating activity of the catalyst. The latter correlation has a few outliners which were attributed to the electronic effects exerted by Sn and Re over Pt that modify differently the metal activity and the capacity to chemisorb CO.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"; 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: 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"; ArgentinaFil: Giménez, Gustavo N.. 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: Serra, Luciano R.. 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: Carvalho, Luciene S.. Universidade Federal da Bahia; BrasilFil: Rangel, Maria C.. Universidade Federal da Bahia; BrasilElsevier Science2005-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/73942Pieck, Carlos Luis; Vera, Carlos Roman; Parera, Jose; Giménez, Gustavo N.; Serra, Luciano R.; et al.; Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts; Elsevier Science; Catalysis Today; 107-108; 10-2005; 637-6420920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2005.07.040info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586105004463info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:52Zoai:ri.conicet.gov.ar:11336/73942instacron: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 09:34:52.933CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
title Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
spellingShingle Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
Pieck, Carlos Luis
Dispersion
Naphtha Reforming
Pt-Re-Sn
Trimetallic Catalysts
title_short Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
title_full Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
title_fullStr Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
title_full_unstemmed Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
title_sort Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts
dc.creator.none.fl_str_mv Pieck, Carlos Luis
Vera, Carlos Roman
Parera, Jose
Giménez, Gustavo N.
Serra, Luciano R.
Carvalho, Luciene S.
Rangel, Maria C.
author Pieck, Carlos Luis
author_facet Pieck, Carlos Luis
Vera, Carlos Roman
Parera, Jose
Giménez, Gustavo N.
Serra, Luciano R.
Carvalho, Luciene S.
Rangel, Maria C.
author_role author
author2 Vera, Carlos Roman
Parera, Jose
Giménez, Gustavo N.
Serra, Luciano R.
Carvalho, Luciene S.
Rangel, Maria C.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Dispersion
Naphtha Reforming
Pt-Re-Sn
Trimetallic Catalysts
topic Dispersion
Naphtha Reforming
Pt-Re-Sn
Trimetallic Catalysts
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 chemisorption of CO over mono-, bi- and trimetallic naphtha reforming catalysts containing Pt, Re and Sn in the metallic function was studied. The temperature-programmed reduction (TPR) results show that there are important interactions among the metals. The CO chemisorption experiments were performed in a pulse equipment. Pulses of the adsorbate (CO) were successively injected to the system until saturation and the exposed Pt was determined from the amount of adsorbate irreversibly adsorbed. The exposed or accessible Pt obtained was compared with that one determined by the classical static method and it was also correlated with the results of catalytic activity of the metal function (cyclohexane dehydrogenation at 400 °C, 0.1 MPa, H2/CH = 30). The CO chemisorption results indicate that it is possible to determine in an easy way the metallic dispersion of Pt/Al2O3 monometallic catalysts and that the same method can be applied to measure the exposed Pt on bimetallic Pt-Re and Pt-Sn catalysts and trimetallic Pt-Re-Sn catalysts. The values obtained from CO adsorption have very good repeatability and are proportional to the dehydrogenating activity of the catalyst. The latter correlation has a few outliners which were attributed to the electronic effects exerted by Sn and Re over Pt that modify differently the metal activity and the capacity to chemisorb CO.
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: 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: 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
Fil: Giménez, Gustavo N.. 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: Serra, Luciano R.. 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: Carvalho, Luciene S.. Universidade Federal da Bahia; Brasil
Fil: Rangel, Maria C.. Universidade Federal da Bahia; Brasil
description The chemisorption of CO over mono-, bi- and trimetallic naphtha reforming catalysts containing Pt, Re and Sn in the metallic function was studied. The temperature-programmed reduction (TPR) results show that there are important interactions among the metals. The CO chemisorption experiments were performed in a pulse equipment. Pulses of the adsorbate (CO) were successively injected to the system until saturation and the exposed Pt was determined from the amount of adsorbate irreversibly adsorbed. The exposed or accessible Pt obtained was compared with that one determined by the classical static method and it was also correlated with the results of catalytic activity of the metal function (cyclohexane dehydrogenation at 400 °C, 0.1 MPa, H2/CH = 30). The CO chemisorption results indicate that it is possible to determine in an easy way the metallic dispersion of Pt/Al2O3 monometallic catalysts and that the same method can be applied to measure the exposed Pt on bimetallic Pt-Re and Pt-Sn catalysts and trimetallic Pt-Re-Sn catalysts. The values obtained from CO adsorption have very good repeatability and are proportional to the dehydrogenating activity of the catalyst. The latter correlation has a few outliners which were attributed to the electronic effects exerted by Sn and Re over Pt that modify differently the metal activity and the capacity to chemisorb CO.
publishDate 2005
dc.date.none.fl_str_mv 2005-10
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/11336/73942
Pieck, Carlos Luis; Vera, Carlos Roman; Parera, Jose; Giménez, Gustavo N.; Serra, Luciano R.; et al.; Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts; Elsevier Science; Catalysis Today; 107-108; 10-2005; 637-642
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/73942
identifier_str_mv Pieck, Carlos Luis; Vera, Carlos Roman; Parera, Jose; Giménez, Gustavo N.; Serra, Luciano R.; et al.; Metal dispersion and catalytic activity of trimetallic Pt-Re-Sn/Al 2O3 naphtha reforming catalysts; Elsevier Science; Catalysis Today; 107-108; 10-2005; 637-642
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.2005.07.040
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586105004463
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv 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 13.070432

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