Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths
- Autores
- Boix, Alicia Viviana; Lombardo, Eduardo Agustin; Miro, Eduardo Ernesto
- Año de publicación
- 2005
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- CoFER and PtCoFER were prepared with different Co loadings and Co/Pt ratios. The resulting powders were washcoated on ceramic honeycombs. To increase adherence, silica was added to the slurry as a binder. The samples were assayed for the SCR of NOx with methane in excess oxygen. The maximum conversion of NOx to N2 for each formulation when plotted versus either Co loading or Co/Pt ratio presented maxima. All catalysts partially deactivated with 2% water. A thorough TPR, XPS and LRS characterization of fresh and deactivated catalysts showed that two deactivation mechanisms are operative. At low Co loadings, the formation of Pt clusters is responsible for the low selectivity, while for higher loadings Co 3O4 is formed and is the non-selective species.
Fil: Boix, Alicia Viviana. 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: Lombardo, Eduardo Agustin. 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: Miro, Eduardo Ernesto. 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
-
Coptferrierite
Cordierite Monoliths
Deactivation
Nox Reduction - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/73025
Ver los metadatos del registro completo
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Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monolithsBoix, Alicia VivianaLombardo, Eduardo AgustinMiro, Eduardo ErnestoCoptferrieriteCordierite MonolithsDeactivationNox Reductionhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2CoFER and PtCoFER were prepared with different Co loadings and Co/Pt ratios. The resulting powders were washcoated on ceramic honeycombs. To increase adherence, silica was added to the slurry as a binder. The samples were assayed for the SCR of NOx with methane in excess oxygen. The maximum conversion of NOx to N2 for each formulation when plotted versus either Co loading or Co/Pt ratio presented maxima. All catalysts partially deactivated with 2% water. A thorough TPR, XPS and LRS characterization of fresh and deactivated catalysts showed that two deactivation mechanisms are operative. At low Co loadings, the formation of Pt clusters is responsible for the low selectivity, while for higher loadings Co 3O4 is formed and is the non-selective species.Fil: Boix, Alicia Viviana. 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: Lombardo, Eduardo Agustin. 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: Miro, Eduardo Ernesto. 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 Science2005-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/73025Boix, Alicia Viviana; Lombardo, Eduardo Agustin; Miro, Eduardo Ernesto; Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths; Elsevier Science; Catalysis Today; 107-108; 10-2005; 330-3370920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2005.07.082info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:56:32Zoai:ri.conicet.gov.ar:11336/73025instacron: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:34982025-10-22 11:56:33.15CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths |
title |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths |
spellingShingle |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths Boix, Alicia Viviana Coptferrierite Cordierite Monoliths Deactivation Nox Reduction |
title_short |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths |
title_full |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths |
title_fullStr |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths |
title_full_unstemmed |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths |
title_sort |
Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths |
dc.creator.none.fl_str_mv |
Boix, Alicia Viviana Lombardo, Eduardo Agustin Miro, Eduardo Ernesto |
author |
Boix, Alicia Viviana |
author_facet |
Boix, Alicia Viviana Lombardo, Eduardo Agustin Miro, Eduardo Ernesto |
author_role |
author |
author2 |
Lombardo, Eduardo Agustin Miro, Eduardo Ernesto |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Coptferrierite Cordierite Monoliths Deactivation Nox Reduction |
topic |
Coptferrierite Cordierite Monoliths Deactivation Nox Reduction |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.7 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
CoFER and PtCoFER were prepared with different Co loadings and Co/Pt ratios. The resulting powders were washcoated on ceramic honeycombs. To increase adherence, silica was added to the slurry as a binder. The samples were assayed for the SCR of NOx with methane in excess oxygen. The maximum conversion of NOx to N2 for each formulation when plotted versus either Co loading or Co/Pt ratio presented maxima. All catalysts partially deactivated with 2% water. A thorough TPR, XPS and LRS characterization of fresh and deactivated catalysts showed that two deactivation mechanisms are operative. At low Co loadings, the formation of Pt clusters is responsible for the low selectivity, while for higher loadings Co 3O4 is formed and is the non-selective species. Fil: Boix, Alicia Viviana. 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: Lombardo, Eduardo Agustin. 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: Miro, Eduardo Ernesto. 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 |
CoFER and PtCoFER were prepared with different Co loadings and Co/Pt ratios. The resulting powders were washcoated on ceramic honeycombs. To increase adherence, silica was added to the slurry as a binder. The samples were assayed for the SCR of NOx with methane in excess oxygen. The maximum conversion of NOx to N2 for each formulation when plotted versus either Co loading or Co/Pt ratio presented maxima. All catalysts partially deactivated with 2% water. A thorough TPR, XPS and LRS characterization of fresh and deactivated catalysts showed that two deactivation mechanisms are operative. At low Co loadings, the formation of Pt clusters is responsible for the low selectivity, while for higher loadings Co 3O4 is formed and is the non-selective species. |
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/11336/73025 Boix, Alicia Viviana; Lombardo, Eduardo Agustin; Miro, Eduardo Ernesto; Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths; Elsevier Science; Catalysis Today; 107-108; 10-2005; 330-337 0920-5861 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/73025 |
identifier_str_mv |
Boix, Alicia Viviana; Lombardo, Eduardo Agustin; Miro, Eduardo Ernesto; Effect of the Pt/Co ratio upon the catalytic behavior of PtCoFerrierite washcoated on cordierite monoliths; Elsevier Science; Catalysis Today; 107-108; 10-2005; 330-337 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.2005.07.082 |
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 |
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 |
_version_ |
1846782272535003136 |
score |
12.982451 |