The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4

Autores
Boix, Alicia Viviana; Miro, Eduardo Ernesto; Lombardo, Eduardo Agustin; Bañares, M. A.; Mariscal, R.; Fierro, J.L.G.
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A thorough characterization of CoZSM5 and PtCoZSM5 before and after catalytic use was carried out using a battery of techniques. The bimetallic solid was more selective for N2 production. The TPR profiles showed significant differences. No solid, either fresh or used, exhibited any of the characteristic cobalt oxide X-ray reflections. The XPS data provided information concerning cobalt dispersion. The Raman spectroscopy clearly indicated that Co3O4 species were present only in the monometallic zeolites while a form of highly dispersed CoxOy moieties became dominant in the PtCoZSM5. The diffuse reflectance spectroscopy showed that Co2+ species in the monometallic solids were preferentially located at the main channels while in PtCoZSM5 these cations moved to higher coordination lattice sites. Through the combination of these tools, a much better understanding of the synergetic effect of Pt incorporated to CoZSM5 has been achieved. In view of these findings, related work previously published is revisited.
Fil: Boix, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Miro, Eduardo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Lombardo, Eduardo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Bañares, M. A.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
Fil: Mariscal, R.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
Fil: Fierro, J.L.G.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
Materia
Ptcozsm5
Scr
Ch4
Cobalt Species
Tpr-Raman
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:11336/40989
Acceder
id CONICETDig_cce4185020808b0052fd1c9b8aee52b4
oai_identifier_str oai:ri.conicet.gov.ar:11336/40989
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4Boix, Alicia VivianaMiro, Eduardo ErnestoLombardo, Eduardo AgustinBañares, M. A.Mariscal, R.Fierro, J.L.G.Ptcozsm5ScrCh4Cobalt SpeciesTpr-Ramanhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A thorough characterization of CoZSM5 and PtCoZSM5 before and after catalytic use was carried out using a battery of techniques. The bimetallic solid was more selective for N2 production. The TPR profiles showed significant differences. No solid, either fresh or used, exhibited any of the characteristic cobalt oxide X-ray reflections. The XPS data provided information concerning cobalt dispersion. The Raman spectroscopy clearly indicated that Co3O4 species were present only in the monometallic zeolites while a form of highly dispersed CoxOy moieties became dominant in the PtCoZSM5. The diffuse reflectance spectroscopy showed that Co2+ species in the monometallic solids were preferentially located at the main channels while in PtCoZSM5 these cations moved to higher coordination lattice sites. Through the combination of these tools, a much better understanding of the synergetic effect of Pt incorporated to CoZSM5 has been achieved. In view of these findings, related work previously published is revisited.Fil: Boix, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Miro, Eduardo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Lombardo, Eduardo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Bañares, M. A.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; EspañaFil: Mariscal, R.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; EspañaFil: Fierro, J.L.G.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; EspañaAcademic Press Inc Elsevier Science2003-04info: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/11336/40989Boix, Alicia Viviana; Miro, Eduardo Ernesto; Lombardo, Eduardo Agustin; Bañares, M. A.; Mariscal, R.; et al.; The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4; Academic Press Inc Elsevier Science; Journal of Catalysis; 217; 1; 4-2003; 186-1940021-9517CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0021-9517(03)00056-3info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0021951703000563info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:40Zoai:ri.conicet.gov.ar:11336/40989instacron: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 10:18:41.102CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
title The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
spellingShingle The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
Boix, Alicia Viviana
Ptcozsm5
Scr
Ch4
Cobalt Species
Tpr-Raman
title_short The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
title_full The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
title_fullStr The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
title_full_unstemmed The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
title_sort The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4
dc.creator.none.fl_str_mv Boix, Alicia Viviana
Miro, Eduardo Ernesto
Lombardo, Eduardo Agustin
Bañares, M. A.
Mariscal, R.
Fierro, J.L.G.
author Boix, Alicia Viviana
author_facet Boix, Alicia Viviana
Miro, Eduardo Ernesto
Lombardo, Eduardo Agustin
Bañares, M. A.
Mariscal, R.
Fierro, J.L.G.
author_role author
author2 Miro, Eduardo Ernesto
Lombardo, Eduardo Agustin
Bañares, M. A.
Mariscal, R.
Fierro, J.L.G.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ptcozsm5
Scr
Ch4
Cobalt Species
Tpr-Raman
topic Ptcozsm5
Scr
Ch4
Cobalt Species
Tpr-Raman
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A thorough characterization of CoZSM5 and PtCoZSM5 before and after catalytic use was carried out using a battery of techniques. The bimetallic solid was more selective for N2 production. The TPR profiles showed significant differences. No solid, either fresh or used, exhibited any of the characteristic cobalt oxide X-ray reflections. The XPS data provided information concerning cobalt dispersion. The Raman spectroscopy clearly indicated that Co3O4 species were present only in the monometallic zeolites while a form of highly dispersed CoxOy moieties became dominant in the PtCoZSM5. The diffuse reflectance spectroscopy showed that Co2+ species in the monometallic solids were preferentially located at the main channels while in PtCoZSM5 these cations moved to higher coordination lattice sites. Through the combination of these tools, a much better understanding of the synergetic effect of Pt incorporated to CoZSM5 has been achieved. In view of these findings, related work previously published is revisited.
Fil: Boix, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Miro, Eduardo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Lombardo, Eduardo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Bañares, M. A.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
Fil: Mariscal, R.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
Fil: Fierro, J.L.G.. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
description A thorough characterization of CoZSM5 and PtCoZSM5 before and after catalytic use was carried out using a battery of techniques. The bimetallic solid was more selective for N2 production. The TPR profiles showed significant differences. No solid, either fresh or used, exhibited any of the characteristic cobalt oxide X-ray reflections. The XPS data provided information concerning cobalt dispersion. The Raman spectroscopy clearly indicated that Co3O4 species were present only in the monometallic zeolites while a form of highly dispersed CoxOy moieties became dominant in the PtCoZSM5. The diffuse reflectance spectroscopy showed that Co2+ species in the monometallic solids were preferentially located at the main channels while in PtCoZSM5 these cations moved to higher coordination lattice sites. Through the combination of these tools, a much better understanding of the synergetic effect of Pt incorporated to CoZSM5 has been achieved. In view of these findings, related work previously published is revisited.
publishDate 2003
dc.date.none.fl_str_mv 2003-04
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/11336/40989
Boix, Alicia Viviana; Miro, Eduardo Ernesto; Lombardo, Eduardo Agustin; Bañares, M. A.; Mariscal, R.; et al.; The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4; Academic Press Inc Elsevier Science; Journal of Catalysis; 217; 1; 4-2003; 186-194
0021-9517
CONICET Digital
CONICET
url http://hdl.handle.net/11336/40989
identifier_str_mv Boix, Alicia Viviana; Miro, Eduardo Ernesto; Lombardo, Eduardo Agustin; Bañares, M. A.; Mariscal, R.; et al.; The nature of cobalt species in Co and PtCoZSM5 used for the SCR of NOx with CH4; Academic Press Inc Elsevier Science; Journal of Catalysis; 217; 1; 4-2003; 186-194
0021-9517
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/S0021-9517(03)00056-3
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0021951703000563
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
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc 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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