Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2

Autores
Pompeo, Francisco; Gazzoli, Delia; Nichio, Nora Nancy
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
α-Al2O3 is a catalytic support adequate by its high stability, availability, and low cost, although it presents as principal disadvantage its limited surface area and reactivity. These disadvantages in the support lead to catalysts of low metallic dispersion and with weak interaction metal-support. According to characterization results obtained in this work, the addition of small amounts of Ce and Zr oxides to α-Al2O3 leads to CexZr1 − xO2 composites, thus conferring higher reactivity to the surface due to the presence of basic nature sites. This fact together with the well known oxygen storage capacity of these mixed oxides present in composites allow to obtain supports of optimal properties to prevent the sintering and the formation of superficial carbon present in the catalytic deactivation.
Fil: Pompeo, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Gazzoli, Delia. Università di Roma “La Sapienza”. Dipartimento di Chimica; Italia
Fil: Nichio, Nora Nancy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Materia
Xps
Uv-Drs
Cerium Oxide
Zirconium Oxide
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:11336/20386
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2Pompeo, FranciscoGazzoli, DeliaNichio, Nora NancyXpsUv-DrsCerium OxideZirconium Oxidehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2α-Al2O3 is a catalytic support adequate by its high stability, availability, and low cost, although it presents as principal disadvantage its limited surface area and reactivity. These disadvantages in the support lead to catalysts of low metallic dispersion and with weak interaction metal-support. According to characterization results obtained in this work, the addition of small amounts of Ce and Zr oxides to α-Al2O3 leads to CexZr1 − xO2 composites, thus conferring higher reactivity to the surface due to the presence of basic nature sites. This fact together with the well known oxygen storage capacity of these mixed oxides present in composites allow to obtain supports of optimal properties to prevent the sintering and the formation of superficial carbon present in the catalytic deactivation.Fil: Pompeo, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Gazzoli, Delia. Università di Roma “La Sapienza”. Dipartimento di Chimica; ItaliaFil: Nichio, Nora Nancy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaElsevier Science2008-11-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/20386Pompeo, Francisco; Gazzoli, Delia; Nichio, Nora Nancy; Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2; Elsevier Science; Materials Letters; 63; 3-4; 21-11-2008; 477-4790167-577XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.matlet.2008.11.025info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0167577X08009452?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:20Zoai:ri.conicet.gov.ar:11336/20386instacron: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 10:01:20.354CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
title Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
spellingShingle Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
Pompeo, Francisco
Xps
Uv-Drs
Cerium Oxide
Zirconium Oxide
title_short Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
title_full Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
title_fullStr Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
title_full_unstemmed Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
title_sort Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2
dc.creator.none.fl_str_mv Pompeo, Francisco
Gazzoli, Delia
Nichio, Nora Nancy
author Pompeo, Francisco
author_facet Pompeo, Francisco
Gazzoli, Delia
Nichio, Nora Nancy
author_role author
author2 Gazzoli, Delia
Nichio, Nora Nancy
author2_role author
author
dc.subject.none.fl_str_mv Xps
Uv-Drs
Cerium Oxide
Zirconium Oxide
topic Xps
Uv-Drs
Cerium Oxide
Zirconium Oxide
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv α-Al2O3 is a catalytic support adequate by its high stability, availability, and low cost, although it presents as principal disadvantage its limited surface area and reactivity. These disadvantages in the support lead to catalysts of low metallic dispersion and with weak interaction metal-support. According to characterization results obtained in this work, the addition of small amounts of Ce and Zr oxides to α-Al2O3 leads to CexZr1 − xO2 composites, thus conferring higher reactivity to the surface due to the presence of basic nature sites. This fact together with the well known oxygen storage capacity of these mixed oxides present in composites allow to obtain supports of optimal properties to prevent the sintering and the formation of superficial carbon present in the catalytic deactivation.
Fil: Pompeo, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Gazzoli, Delia. Università di Roma “La Sapienza”. Dipartimento di Chimica; Italia
Fil: Nichio, Nora Nancy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
description α-Al2O3 is a catalytic support adequate by its high stability, availability, and low cost, although it presents as principal disadvantage its limited surface area and reactivity. These disadvantages in the support lead to catalysts of low metallic dispersion and with weak interaction metal-support. According to characterization results obtained in this work, the addition of small amounts of Ce and Zr oxides to α-Al2O3 leads to CexZr1 − xO2 composites, thus conferring higher reactivity to the surface due to the presence of basic nature sites. This fact together with the well known oxygen storage capacity of these mixed oxides present in composites allow to obtain supports of optimal properties to prevent the sintering and the formation of superficial carbon present in the catalytic deactivation.
publishDate 2008
dc.date.none.fl_str_mv 2008-11-21
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/11336/20386
Pompeo, Francisco; Gazzoli, Delia; Nichio, Nora Nancy; Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2; Elsevier Science; Materials Letters; 63; 3-4; 21-11-2008; 477-479
0167-577X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/20386
identifier_str_mv Pompeo, Francisco; Gazzoli, Delia; Nichio, Nora Nancy; Characterization of alpha-Al2O3 supports modified with CeO2 and ZrO2; Elsevier Science; Materials Letters; 63; 3-4; 21-11-2008; 477-479
0167-577X
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.matlet.2008.11.025
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0167577X08009452?via%3Dihub
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 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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