Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study

Autores
Peluso, Miguel Andrés; Pronsato, Maria Estela; Sambeth, Jorge Enrique; Thomas, Horacio Jorge; Busca, Guido
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Mn-based catalysts prepared by oxidation of Mn(II) by KMnO4, pure and supported on alumina, calcined at 350 and 500 °C have been characterized and tested in the total oxidation of ethanol. IR experiments allowed us to have an indication on some aspects of the reaction mechanisms. The unsupported catalysts calcined at 350 °C, mostly constituted by a cryptomelane phase were the most active, allowing the total conversion of ethanol at 180 °C, with excellent stability for at least 80 h. The reaction is initiated by the fast conversion of ethanol to acetate species via acetaldehyde. Later, the conversion of acetates to CO2 appears to be a slow step. On alumina-supported catalysts, which are (in spite of the much higher surface area) active only above 240 °C, part of acetate species are adsorbed on the support and act as inactive spectators.
Fil: Peluso, Miguel Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Pronsato, Maria Estela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Física; Argentina
Fil: Sambeth, Jorge Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Thomas, Horacio Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Busca, Guido. Universidad de Genova; España
Materia
Criptomelane
Manganese Oxide
Vocs
Ftir
Ethanol Oxidation
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:11336/51830
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor studyPeluso, Miguel AndrésPronsato, Maria EstelaSambeth, Jorge EnriqueThomas, Horacio JorgeBusca, GuidoCriptomelaneManganese OxideVocsFtirEthanol Oxidationhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Mn-based catalysts prepared by oxidation of Mn(II) by KMnO4, pure and supported on alumina, calcined at 350 and 500 °C have been characterized and tested in the total oxidation of ethanol. IR experiments allowed us to have an indication on some aspects of the reaction mechanisms. The unsupported catalysts calcined at 350 °C, mostly constituted by a cryptomelane phase were the most active, allowing the total conversion of ethanol at 180 °C, with excellent stability for at least 80 h. The reaction is initiated by the fast conversion of ethanol to acetate species via acetaldehyde. Later, the conversion of acetates to CO2 appears to be a slow step. On alumina-supported catalysts, which are (in spite of the much higher surface area) active only above 240 °C, part of acetate species are adsorbed on the support and act as inactive spectators.Fil: Peluso, Miguel Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Pronsato, Maria Estela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Física; ArgentinaFil: Sambeth, Jorge Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Thomas, Horacio Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Busca, Guido. Universidad de Genova; EspañaElsevier Science2008-12info: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/11336/51830Peluso, Miguel Andrés; Pronsato, Maria Estela; Sambeth, Jorge Enrique; Thomas, Horacio Jorge; Busca, Guido; Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study; Elsevier Science; Applied Catalysis B: Environmental; 78; 12-2008; 73-790926-3373CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2007.09.002info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926337307002743info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:28Zoai:ri.conicet.gov.ar:11336/51830instacron: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 09:48:28.588CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
title Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
spellingShingle Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
Peluso, Miguel Andrés
Criptomelane
Manganese Oxide
Vocs
Ftir
Ethanol Oxidation
title_short Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
title_full Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
title_fullStr Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
title_full_unstemmed Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
title_sort Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study
dc.creator.none.fl_str_mv Peluso, Miguel Andrés
Pronsato, Maria Estela
Sambeth, Jorge Enrique
Thomas, Horacio Jorge
Busca, Guido
author Peluso, Miguel Andrés
author_facet Peluso, Miguel Andrés
Pronsato, Maria Estela
Sambeth, Jorge Enrique
Thomas, Horacio Jorge
Busca, Guido
author_role author
author2 Pronsato, Maria Estela
Sambeth, Jorge Enrique
Thomas, Horacio Jorge
Busca, Guido
author2_role author
author
author
author
dc.subject.none.fl_str_mv Criptomelane
Manganese Oxide
Vocs
Ftir
Ethanol Oxidation
topic Criptomelane
Manganese Oxide
Vocs
Ftir
Ethanol Oxidation
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Mn-based catalysts prepared by oxidation of Mn(II) by KMnO4, pure and supported on alumina, calcined at 350 and 500 °C have been characterized and tested in the total oxidation of ethanol. IR experiments allowed us to have an indication on some aspects of the reaction mechanisms. The unsupported catalysts calcined at 350 °C, mostly constituted by a cryptomelane phase were the most active, allowing the total conversion of ethanol at 180 °C, with excellent stability for at least 80 h. The reaction is initiated by the fast conversion of ethanol to acetate species via acetaldehyde. Later, the conversion of acetates to CO2 appears to be a slow step. On alumina-supported catalysts, which are (in spite of the much higher surface area) active only above 240 °C, part of acetate species are adsorbed on the support and act as inactive spectators.
Fil: Peluso, Miguel Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Pronsato, Maria Estela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Física; Argentina
Fil: Sambeth, Jorge Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Thomas, Horacio Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Busca, Guido. Universidad de Genova; España
description Mn-based catalysts prepared by oxidation of Mn(II) by KMnO4, pure and supported on alumina, calcined at 350 and 500 °C have been characterized and tested in the total oxidation of ethanol. IR experiments allowed us to have an indication on some aspects of the reaction mechanisms. The unsupported catalysts calcined at 350 °C, mostly constituted by a cryptomelane phase were the most active, allowing the total conversion of ethanol at 180 °C, with excellent stability for at least 80 h. The reaction is initiated by the fast conversion of ethanol to acetate species via acetaldehyde. Later, the conversion of acetates to CO2 appears to be a slow step. On alumina-supported catalysts, which are (in spite of the much higher surface area) active only above 240 °C, part of acetate species are adsorbed on the support and act as inactive spectators.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/51830
Peluso, Miguel Andrés; Pronsato, Maria Estela; Sambeth, Jorge Enrique; Thomas, Horacio Jorge; Busca, Guido; Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study; Elsevier Science; Applied Catalysis B: Environmental; 78; 12-2008; 73-79
0926-3373
CONICET Digital
CONICET
url http://hdl.handle.net/11336/51830
identifier_str_mv Peluso, Miguel Andrés; Pronsato, Maria Estela; Sambeth, Jorge Enrique; Thomas, Horacio Jorge; Busca, Guido; Catalytic combustion of ethanol on pure and alumina supported K-Mn oxides: An IR and flow reactor study; Elsevier Science; Applied Catalysis B: Environmental; 78; 12-2008; 73-79
0926-3373
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.apcatb.2007.09.002
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926337307002743
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
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score 13.070432

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