XPS study of the surface properties and Ni particle size determination of Ni supported catalysts

Autores
Tarditi, Ana Maria; Barroso, Mariana Noelia; Galetti, Agustin Esteban; Arrua, Luis Alberto; Cornaglia, Laura Maria; Abello, Maria Cristina
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The surface properties of Ni/MgAl2O4 catalysts doped with Ce or Pr were analyzed by XPS after treatment in an inert and reductive atmosphere at 400 °C. The Ce-promoted solids presented the Ce3+/Ce4+ couple on the surface even after treatment in a reductive atmosphere, H2(5%)/Ar. The promotion effect of Ce on these solids could be associated with their participation on the carbon deposition-removal mechanism. Pr-doped catalysts showed a very high concentration of Pr3+ under a reductive atmosphere and the redox behavior associated with the carbon removal could be partially inhibited or become slower. The size of the Ni0 particles after both an inert and a reductive atmosphere was estimated by XPS intensity ratio using the model proposed by Davis. The results obtained from the Davis model showed that an important increase occurred in Ni particle size after treatment in H2(5%)/Ar for the Pr-promoted solids . The metal sintering under reductive atmosphere could be the reason for the higher loss of activity of the Pr-doped solids under reforming conditions.
Fil: Tarditi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina
Fil: Barroso, Mariana Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Galetti, Agustin Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Arrua, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Cornaglia, Laura Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina
Fil: Abello, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
Materia
Ni/Mgal2o4
Catalyst
Ce or Pr
Xps
Davis Model
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:11336/5849
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5849
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling XPS study of the surface properties and Ni particle size determination of Ni supported catalystsTarditi, Ana MariaBarroso, Mariana NoeliaGaletti, Agustin EstebanArrua, Luis AlbertoCornaglia, Laura MariaAbello, Maria CristinaNi/Mgal2o4CatalystCe or PrXpsDavis Modelhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The surface properties of Ni/MgAl2O4 catalysts doped with Ce or Pr were analyzed by XPS after treatment in an inert and reductive atmosphere at 400 °C. The Ce-promoted solids presented the Ce3+/Ce4+ couple on the surface even after treatment in a reductive atmosphere, H2(5%)/Ar. The promotion effect of Ce on these solids could be associated with their participation on the carbon deposition-removal mechanism. Pr-doped catalysts showed a very high concentration of Pr3+ under a reductive atmosphere and the redox behavior associated with the carbon removal could be partially inhibited or become slower. The size of the Ni0 particles after both an inert and a reductive atmosphere was estimated by XPS intensity ratio using the model proposed by Davis. The results obtained from the Davis model showed that an important increase occurred in Ni particle size after treatment in H2(5%)/Ar for the Pr-promoted solids . The metal sintering under reductive atmosphere could be the reason for the higher loss of activity of the Pr-doped solids under reforming conditions.Fil: Tarditi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; ArgentinaFil: Barroso, Mariana Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; ArgentinaFil: Galetti, Agustin Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; ArgentinaFil: Arrua, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; ArgentinaFil: Cornaglia, Laura Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; ArgentinaFil: Abello, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; ArgentinaWiley2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5849Tarditi, Ana Maria; Barroso, Mariana Noelia; Galetti, Agustin Esteban; Arrua, Luis Alberto; Cornaglia, Laura Maria; et al.; XPS study of the surface properties and Ni particle size determination of Ni supported catalysts; Wiley; Surface Interface Analysis; 46; 8; 4-2014; 521-5291096-9918enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/sia.5549/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1002/sia.5549info:eu-repo/semantics/altIdentifier/doi/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 Técnicas2025-09-29T09:50:26Zoai:ri.conicet.gov.ar:11336/5849instacron: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 09:50:26.35CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
title XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
spellingShingle XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
Tarditi, Ana Maria
Ni/Mgal2o4
Catalyst
Ce or Pr
Xps
Davis Model
title_short XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
title_full XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
title_fullStr XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
title_full_unstemmed XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
title_sort XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
dc.creator.none.fl_str_mv Tarditi, Ana Maria
Barroso, Mariana Noelia
Galetti, Agustin Esteban
Arrua, Luis Alberto
Cornaglia, Laura Maria
Abello, Maria Cristina
author Tarditi, Ana Maria
author_facet Tarditi, Ana Maria
Barroso, Mariana Noelia
Galetti, Agustin Esteban
Arrua, Luis Alberto
Cornaglia, Laura Maria
Abello, Maria Cristina
author_role author
author2 Barroso, Mariana Noelia
Galetti, Agustin Esteban
Arrua, Luis Alberto
Cornaglia, Laura Maria
Abello, Maria Cristina
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ni/Mgal2o4
Catalyst
Ce or Pr
Xps
Davis Model
topic Ni/Mgal2o4
Catalyst
Ce or Pr
Xps
Davis Model
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The surface properties of Ni/MgAl2O4 catalysts doped with Ce or Pr were analyzed by XPS after treatment in an inert and reductive atmosphere at 400 °C. The Ce-promoted solids presented the Ce3+/Ce4+ couple on the surface even after treatment in a reductive atmosphere, H2(5%)/Ar. The promotion effect of Ce on these solids could be associated with their participation on the carbon deposition-removal mechanism. Pr-doped catalysts showed a very high concentration of Pr3+ under a reductive atmosphere and the redox behavior associated with the carbon removal could be partially inhibited or become slower. The size of the Ni0 particles after both an inert and a reductive atmosphere was estimated by XPS intensity ratio using the model proposed by Davis. The results obtained from the Davis model showed that an important increase occurred in Ni particle size after treatment in H2(5%)/Ar for the Pr-promoted solids . The metal sintering under reductive atmosphere could be the reason for the higher loss of activity of the Pr-doped solids under reforming conditions.
Fil: Tarditi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina
Fil: Barroso, Mariana Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Galetti, Agustin Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Arrua, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Cornaglia, Laura Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica; Argentina
Fil: Abello, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones en Tecnología Química; Argentina
description The surface properties of Ni/MgAl2O4 catalysts doped with Ce or Pr were analyzed by XPS after treatment in an inert and reductive atmosphere at 400 °C. The Ce-promoted solids presented the Ce3+/Ce4+ couple on the surface even after treatment in a reductive atmosphere, H2(5%)/Ar. The promotion effect of Ce on these solids could be associated with their participation on the carbon deposition-removal mechanism. Pr-doped catalysts showed a very high concentration of Pr3+ under a reductive atmosphere and the redox behavior associated with the carbon removal could be partially inhibited or become slower. The size of the Ni0 particles after both an inert and a reductive atmosphere was estimated by XPS intensity ratio using the model proposed by Davis. The results obtained from the Davis model showed that an important increase occurred in Ni particle size after treatment in H2(5%)/Ar for the Pr-promoted solids . The metal sintering under reductive atmosphere could be the reason for the higher loss of activity of the Pr-doped solids under reforming conditions.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
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/11336/5849
Tarditi, Ana Maria; Barroso, Mariana Noelia; Galetti, Agustin Esteban; Arrua, Luis Alberto; Cornaglia, Laura Maria; et al.; XPS study of the surface properties and Ni particle size determination of Ni supported catalysts; Wiley; Surface Interface Analysis; 46; 8; 4-2014; 521-529
1096-9918
url http://hdl.handle.net/11336/5849
identifier_str_mv Tarditi, Ana Maria; Barroso, Mariana Noelia; Galetti, Agustin Esteban; Arrua, Luis Alberto; Cornaglia, Laura Maria; et al.; XPS study of the surface properties and Ni particle size determination of Ni supported catalysts; Wiley; Surface Interface Analysis; 46; 8; 4-2014; 521-529
1096-9918
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/sia.5549/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1002/sia.5549
info:eu-repo/semantics/altIdentifier/doi/
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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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