Co oxidation: effect of Ce and Au addition on MnOx catalysts

Autores
Peluso, Miguel Andrés; Hernández Enciso, W. Y.; Dominguez, M. I.; Thomas, Horacio Jorge; Centeno, M. A.; Sambeth, Jorge Enrique
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of cerium and/or gold addition to a manganese oxide which was greatly active in CO oxidation was studied. The catalysts obtained by this way were characterized by N2 adsorption, XRF, XRD and TPR, and their catalytic activity was measured in the CO oxidation reaction. The pure MnOx catalyst was active in the CO oxidation but the addition of 5 wt % cerium decreased their catalytic activity. Adding 2 wt % gold improved the activity of MnOx and Ce/MnOx and caused a slight decrease of the catalyst specific area and of the average oxidation state of manganese in catalysts, which was found between 3.3 and 3.6. The order of activity found on the basis of T50 for the four catalysts was: Au/MnOx > Au/Ce/MnOx > MnOx > Ce/MnOx, with T50 of 89, 95, 99 and 139 °C, respectively. The solids Au/MnOx and Au/Ce/MnOx presented a T10 of 30 and 49 °C, indicating that gold favored the conversion at room temperature. The effect of water vapor on the reaction was also analyzed, finding a decrease in the catalytic activity of all catalysts, due to the blocking of active sites in the catalyst surface.
Fil: Peluso, Miguel Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Hernández Enciso, W. Y.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ciencia de Materiales de Sevilla; España
Fil: Dominguez, M. I.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ienia de Materiales de Sevilla; España
Fil: Thomas, Horacio Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Centeno, M. A.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ciencia de Materiales de Sevilla; España
Fil: Sambeth, Jorge Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Materia
Co Oxidation
Mnox
Cemnox
Au
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5870
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5870
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Co oxidation: effect of Ce and Au addition on MnOx catalystsPeluso, Miguel AndrésHernández Enciso, W. Y.Dominguez, M. I.Thomas, Horacio JorgeCenteno, M. A.Sambeth, Jorge EnriqueCo OxidationMnoxCemnoxAuhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The effect of cerium and/or gold addition to a manganese oxide which was greatly active in CO oxidation was studied. The catalysts obtained by this way were characterized by N2 adsorption, XRF, XRD and TPR, and their catalytic activity was measured in the CO oxidation reaction. The pure MnOx catalyst was active in the CO oxidation but the addition of 5 wt % cerium decreased their catalytic activity. Adding 2 wt % gold improved the activity of MnOx and Ce/MnOx and caused a slight decrease of the catalyst specific area and of the average oxidation state of manganese in catalysts, which was found between 3.3 and 3.6. The order of activity found on the basis of T50 for the four catalysts was: Au/MnOx > Au/Ce/MnOx > MnOx > Ce/MnOx, with T50 of 89, 95, 99 and 139 °C, respectively. The solids Au/MnOx and Au/Ce/MnOx presented a T10 of 30 and 49 °C, indicating that gold favored the conversion at room temperature. The effect of water vapor on the reaction was also analyzed, finding a decrease in the catalytic activity of all catalysts, due to the blocking of active sites in the catalyst surface.Fil: Peluso, Miguel Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaFil: Hernández Enciso, W. Y.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ciencia de Materiales de Sevilla; EspañaFil: Dominguez, M. I.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ienia de Materiales de Sevilla; EspañaFil: Thomas, Horacio Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaFil: Centeno, M. A.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ciencia de Materiales de Sevilla; EspañaFil: Sambeth, Jorge Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaPlanta Piloto de Ingeniería Química2012-10info: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/11336/5870Peluso, Miguel Andrés; Hernández Enciso, W. Y.; Dominguez, M. I.; Thomas, Horacio Jorge; Centeno, M. A.; et al.; Co oxidation: effect of Ce and Au addition on MnOx catalysts; Planta Piloto de Ingeniería Química; Latin American Applied Research; 42; 4; 10-2012; 351-3580327-07931851-8796enginfo:eu-repo/semantics/altIdentifier/url/http://www.laar.uns.edu.ar/indexes/artic_v4204/Vol42_04_351.pdfinfo:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/g66v8binfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:06:56Zoai:ri.conicet.gov.ar:11336/5870instacron: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 10:06:56.985CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Co oxidation: effect of Ce and Au addition on MnOx catalysts
title Co oxidation: effect of Ce and Au addition on MnOx catalysts
spellingShingle Co oxidation: effect of Ce and Au addition on MnOx catalysts
Peluso, Miguel Andrés
Co Oxidation
Mnox
Cemnox
Au
title_short Co oxidation: effect of Ce and Au addition on MnOx catalysts
title_full Co oxidation: effect of Ce and Au addition on MnOx catalysts
title_fullStr Co oxidation: effect of Ce and Au addition on MnOx catalysts
title_full_unstemmed Co oxidation: effect of Ce and Au addition on MnOx catalysts
title_sort Co oxidation: effect of Ce and Au addition on MnOx catalysts
dc.creator.none.fl_str_mv Peluso, Miguel Andrés
Hernández Enciso, W. Y.
Dominguez, M. I.
Thomas, Horacio Jorge
Centeno, M. A.
Sambeth, Jorge Enrique
author Peluso, Miguel Andrés
author_facet Peluso, Miguel Andrés
Hernández Enciso, W. Y.
Dominguez, M. I.
Thomas, Horacio Jorge
Centeno, M. A.
Sambeth, Jorge Enrique
author_role author
author2 Hernández Enciso, W. Y.
Dominguez, M. I.
Thomas, Horacio Jorge
Centeno, M. A.
Sambeth, Jorge Enrique
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Co Oxidation
Mnox
Cemnox
Au
topic Co Oxidation
Mnox
Cemnox
Au
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The effect of cerium and/or gold addition to a manganese oxide which was greatly active in CO oxidation was studied. The catalysts obtained by this way were characterized by N2 adsorption, XRF, XRD and TPR, and their catalytic activity was measured in the CO oxidation reaction. The pure MnOx catalyst was active in the CO oxidation but the addition of 5 wt % cerium decreased their catalytic activity. Adding 2 wt % gold improved the activity of MnOx and Ce/MnOx and caused a slight decrease of the catalyst specific area and of the average oxidation state of manganese in catalysts, which was found between 3.3 and 3.6. The order of activity found on the basis of T50 for the four catalysts was: Au/MnOx > Au/Ce/MnOx > MnOx > Ce/MnOx, with T50 of 89, 95, 99 and 139 °C, respectively. The solids Au/MnOx and Au/Ce/MnOx presented a T10 of 30 and 49 °C, indicating that gold favored the conversion at room temperature. The effect of water vapor on the reaction was also analyzed, finding a decrease in the catalytic activity of all catalysts, due to the blocking of active sites in the catalyst surface.
Fil: Peluso, Miguel Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Hernández Enciso, W. Y.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ciencia de Materiales de Sevilla; España
Fil: Dominguez, M. I.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ienia de Materiales de Sevilla; España
Fil: Thomas, Horacio Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Centeno, M. A.. Universidad de Sevilla. Consejo Superior de Investigaciones Cientificas. Instituto de Ciencia de Materiales de Sevilla; España
Fil: Sambeth, Jorge Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
description The effect of cerium and/or gold addition to a manganese oxide which was greatly active in CO oxidation was studied. The catalysts obtained by this way were characterized by N2 adsorption, XRF, XRD and TPR, and their catalytic activity was measured in the CO oxidation reaction. The pure MnOx catalyst was active in the CO oxidation but the addition of 5 wt % cerium decreased their catalytic activity. Adding 2 wt % gold improved the activity of MnOx and Ce/MnOx and caused a slight decrease of the catalyst specific area and of the average oxidation state of manganese in catalysts, which was found between 3.3 and 3.6. The order of activity found on the basis of T50 for the four catalysts was: Au/MnOx > Au/Ce/MnOx > MnOx > Ce/MnOx, with T50 of 89, 95, 99 and 139 °C, respectively. The solids Au/MnOx and Au/Ce/MnOx presented a T10 of 30 and 49 °C, indicating that gold favored the conversion at room temperature. The effect of water vapor on the reaction was also analyzed, finding a decrease in the catalytic activity of all catalysts, due to the blocking of active sites in the catalyst surface.
publishDate 2012
dc.date.none.fl_str_mv 2012-10
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/11336/5870
Peluso, Miguel Andrés; Hernández Enciso, W. Y.; Dominguez, M. I.; Thomas, Horacio Jorge; Centeno, M. A.; et al.; Co oxidation: effect of Ce and Au addition on MnOx catalysts; Planta Piloto de Ingeniería Química; Latin American Applied Research; 42; 4; 10-2012; 351-358
0327-0793
1851-8796
url http://hdl.handle.net/11336/5870
identifier_str_mv Peluso, Miguel Andrés; Hernández Enciso, W. Y.; Dominguez, M. I.; Thomas, Horacio Jorge; Centeno, M. A.; et al.; Co oxidation: effect of Ce and Au addition on MnOx catalysts; Planta Piloto de Ingeniería Química; Latin American Applied Research; 42; 4; 10-2012; 351-358
0327-0793
1851-8796
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.laar.uns.edu.ar/indexes/artic_v4204/Vol42_04_351.pdf
info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/g66v8b
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Planta Piloto de Ingeniería Química
publisher.none.fl_str_mv Planta Piloto de Ingeniería Química
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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