Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam

Autores
Banus, Ezequiel David; Milt, Viviana Guadalupe; Miro, Eduardo Ernesto; Ulla, Maria Alicia del H.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
An alumina foam has been coated with a thin layer of ZrO2 by washcoating and impregnated with Co, Ba and K, which are active ingredients for soot combustion and NOx adsorption processes. The ZrO2 coating exhibits an arrangement of interconnected surface cracks, due to the shrinkage of the Zr(OH)x layer during the drying process, and the high temperature treatment (700 °C), needed to remove and burn the colloidal stabilizer present in the slurry used during the washcoating procedure. However, the coating showed a good adherence when subjected to an ultrasonic test, and improved after the impregnation of the active components (K, Ba and Co), probably due to a partial melting of the potassium salt. The ZrO2-foam was less active for the soot combustion compared to the Co,Ba,K/ZrO2-foam, confirming that the Co, Ba and K species present on the coating acted as active elements; thus, the process employed to incorporate them proved to be effective. Although a shrinkage-crack pattern of flakes (mainly composed of Co,Ba,K/ZrO2) and cracks (rich in Al2O3) was observed in the catalytic film, the system showed to be active and stable for the catalytic combustion of soot. The maximum in the combustion rate depends upon the amount of soot loaded and the presence of NO in the feed, having a performance comparable to that obtained with the powder catalyst.
Fil: Banus, Ezequiel David. 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: Milt, Viviana Guadalupe. 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
Fil: Ulla, Maria Alicia del H.. 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
Al2o3 Foam
Soot Combustion
Structured Catalyst
Zro2 Coating
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:11336/57167
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/57167
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foamBanus, Ezequiel DavidMilt, Viviana GuadalupeMiro, Eduardo ErnestoUlla, Maria Alicia del H.Al2o3 FoamSoot CombustionStructured CatalystZro2 Coatinghttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2An alumina foam has been coated with a thin layer of ZrO2 by washcoating and impregnated with Co, Ba and K, which are active ingredients for soot combustion and NOx adsorption processes. The ZrO2 coating exhibits an arrangement of interconnected surface cracks, due to the shrinkage of the Zr(OH)x layer during the drying process, and the high temperature treatment (700 °C), needed to remove and burn the colloidal stabilizer present in the slurry used during the washcoating procedure. However, the coating showed a good adherence when subjected to an ultrasonic test, and improved after the impregnation of the active components (K, Ba and Co), probably due to a partial melting of the potassium salt. The ZrO2-foam was less active for the soot combustion compared to the Co,Ba,K/ZrO2-foam, confirming that the Co, Ba and K species present on the coating acted as active elements; thus, the process employed to incorporate them proved to be effective. Although a shrinkage-crack pattern of flakes (mainly composed of Co,Ba,K/ZrO2) and cracks (rich in Al2O3) was observed in the catalytic film, the system showed to be active and stable for the catalytic combustion of soot. The maximum in the combustion rate depends upon the amount of soot loaded and the presence of NO in the feed, having a performance comparable to that obtained with the powder catalyst.Fil: Banus, Ezequiel David. 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: Milt, Viviana Guadalupe. 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"; ArgentinaFil: Ulla, Maria Alicia del H.. 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 Science2009-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/57167Banus, Ezequiel David; Milt, Viviana Guadalupe; Miro, Eduardo Ernesto; Ulla, Maria Alicia del H.; Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam; Elsevier Science; Applied Catalysis A: General; 362; 1-2; 6-2009; 129-1380926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2009.04.035info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:24Zoai:ri.conicet.gov.ar:11336/57167instacron: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 09:47:24.249CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
title Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
spellingShingle Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
Banus, Ezequiel David
Al2o3 Foam
Soot Combustion
Structured Catalyst
Zro2 Coating
title_short Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
title_full Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
title_fullStr Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
title_full_unstemmed Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
title_sort Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam
dc.creator.none.fl_str_mv Banus, Ezequiel David
Milt, Viviana Guadalupe
Miro, Eduardo Ernesto
Ulla, Maria Alicia del H.
author Banus, Ezequiel David
author_facet Banus, Ezequiel David
Milt, Viviana Guadalupe
Miro, Eduardo Ernesto
Ulla, Maria Alicia del H.
author_role author
author2 Milt, Viviana Guadalupe
Miro, Eduardo Ernesto
Ulla, Maria Alicia del H.
author2_role author
author
author
dc.subject.none.fl_str_mv Al2o3 Foam
Soot Combustion
Structured Catalyst
Zro2 Coating
topic Al2o3 Foam
Soot Combustion
Structured Catalyst
Zro2 Coating
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv An alumina foam has been coated with a thin layer of ZrO2 by washcoating and impregnated with Co, Ba and K, which are active ingredients for soot combustion and NOx adsorption processes. The ZrO2 coating exhibits an arrangement of interconnected surface cracks, due to the shrinkage of the Zr(OH)x layer during the drying process, and the high temperature treatment (700 °C), needed to remove and burn the colloidal stabilizer present in the slurry used during the washcoating procedure. However, the coating showed a good adherence when subjected to an ultrasonic test, and improved after the impregnation of the active components (K, Ba and Co), probably due to a partial melting of the potassium salt. The ZrO2-foam was less active for the soot combustion compared to the Co,Ba,K/ZrO2-foam, confirming that the Co, Ba and K species present on the coating acted as active elements; thus, the process employed to incorporate them proved to be effective. Although a shrinkage-crack pattern of flakes (mainly composed of Co,Ba,K/ZrO2) and cracks (rich in Al2O3) was observed in the catalytic film, the system showed to be active and stable for the catalytic combustion of soot. The maximum in the combustion rate depends upon the amount of soot loaded and the presence of NO in the feed, having a performance comparable to that obtained with the powder catalyst.
Fil: Banus, Ezequiel David. 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: Milt, Viviana Guadalupe. 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
Fil: Ulla, Maria Alicia del H.. 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 An alumina foam has been coated with a thin layer of ZrO2 by washcoating and impregnated with Co, Ba and K, which are active ingredients for soot combustion and NOx adsorption processes. The ZrO2 coating exhibits an arrangement of interconnected surface cracks, due to the shrinkage of the Zr(OH)x layer during the drying process, and the high temperature treatment (700 °C), needed to remove and burn the colloidal stabilizer present in the slurry used during the washcoating procedure. However, the coating showed a good adherence when subjected to an ultrasonic test, and improved after the impregnation of the active components (K, Ba and Co), probably due to a partial melting of the potassium salt. The ZrO2-foam was less active for the soot combustion compared to the Co,Ba,K/ZrO2-foam, confirming that the Co, Ba and K species present on the coating acted as active elements; thus, the process employed to incorporate them proved to be effective. Although a shrinkage-crack pattern of flakes (mainly composed of Co,Ba,K/ZrO2) and cracks (rich in Al2O3) was observed in the catalytic film, the system showed to be active and stable for the catalytic combustion of soot. The maximum in the combustion rate depends upon the amount of soot loaded and the presence of NO in the feed, having a performance comparable to that obtained with the powder catalyst.
publishDate 2009
dc.date.none.fl_str_mv 2009-06
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/11336/57167
Banus, Ezequiel David; Milt, Viviana Guadalupe; Miro, Eduardo Ernesto; Ulla, Maria Alicia del H.; Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam; Elsevier Science; Applied Catalysis A: General; 362; 1-2; 6-2009; 129-138
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/57167
identifier_str_mv Banus, Ezequiel David; Milt, Viviana Guadalupe; Miro, Eduardo Ernesto; Ulla, Maria Alicia del H.; Structured catalyst for the catalytic combustion of soot: Co,Ba,K/ZrO2 supported on Al2O3 foam; Elsevier Science; Applied Catalysis A: General; 362; 1-2; 6-2009; 129-138
0926-860X
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.apcata.2009.04.035
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
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 13.069144

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