Synthesis and characterization of manganese oxides employed in VOCs abatement

Autores
Lamaita, Luciano; Peluso, Miguel Andrés; Sambeth, Jorge Enrique; Thomas, Horacio Jorge
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two MnO2 were prepared by different methods: (i) MnCO 3 decomposition; and (ii) oxidation of acid MnSO4 solution. The combined use of X-ray diffraction (XRD), DRIFTS, DRS-UV-vis and TGA techniques revealed: (i) the presence of Mn4+-Mn3+; (ii) a poor crystallinity; and (iii) OH species at temperatures higher than 200°C. The catalysts were tested in the complete oxidation of ethanol to carbon dioxide and water, and the reaction results showed that the catalytic activity of both samples were larger than MnO2 (pyrolusite, β-MnO2) and Mn2O3 (like bixbyite) oxides. The high activity of the prepared oxides can be related to the simultaneous presence of Mn3+ and Mn4+ ions and OH- species generated by Mn4+ vacancies. In addition, in situ DRIFT spectroscopy demonstrated a different mechanism of adsorption-reaction of ethanol between the two synthesized manganese oxides.
Fil: Lamaita, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
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 ; 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 ; 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 ; Argentina
Materia
Γ-Mno2 Nsutite
Drifts
Ethanol Oxidation
Manganese Oxides
Vocs
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/55477
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/55477
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Synthesis and characterization of manganese oxides employed in VOCs abatementLamaita, LucianoPeluso, Miguel AndrésSambeth, Jorge EnriqueThomas, Horacio JorgeΓ-Mno2 NsutiteDriftsEthanol OxidationManganese OxidesVocshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Two MnO2 were prepared by different methods: (i) MnCO 3 decomposition; and (ii) oxidation of acid MnSO4 solution. The combined use of X-ray diffraction (XRD), DRIFTS, DRS-UV-vis and TGA techniques revealed: (i) the presence of Mn4+-Mn3+; (ii) a poor crystallinity; and (iii) OH species at temperatures higher than 200°C. The catalysts were tested in the complete oxidation of ethanol to carbon dioxide and water, and the reaction results showed that the catalytic activity of both samples were larger than MnO2 (pyrolusite, β-MnO2) and Mn2O3 (like bixbyite) oxides. The high activity of the prepared oxides can be related to the simultaneous presence of Mn3+ and Mn4+ ions and OH- species generated by Mn4+ vacancies. In addition, in situ DRIFT spectroscopy demonstrated a different mechanism of adsorption-reaction of ethanol between the two synthesized manganese oxides.Fil: Lamaita, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; ArgentinaFil: Peluso, Miguel Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; 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 ; 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 ; ArgentinaElsevier Science2005-10-27info: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/11336/55477Lamaita, Luciano; Peluso, Miguel Andrés; Sambeth, Jorge Enrique; Thomas, Horacio Jorge; Synthesis and characterization of manganese oxides employed in VOCs abatement; Elsevier Science; Applied Catalysis B: Environmental; 61; 1-2; 27-10-2005; 114-1190926-3373CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2005.03.014info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926337305001888info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:16:50Zoai:ri.conicet.gov.ar:11336/55477instacron: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:34982025-09-10 13:16:50.727CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Synthesis and characterization of manganese oxides employed in VOCs abatement
title Synthesis and characterization of manganese oxides employed in VOCs abatement
spellingShingle Synthesis and characterization of manganese oxides employed in VOCs abatement
Lamaita, Luciano
Γ-Mno2 Nsutite
Drifts
Ethanol Oxidation
Manganese Oxides
Vocs
title_short Synthesis and characterization of manganese oxides employed in VOCs abatement
title_full Synthesis and characterization of manganese oxides employed in VOCs abatement
title_fullStr Synthesis and characterization of manganese oxides employed in VOCs abatement
title_full_unstemmed Synthesis and characterization of manganese oxides employed in VOCs abatement
title_sort Synthesis and characterization of manganese oxides employed in VOCs abatement
dc.creator.none.fl_str_mv Lamaita, Luciano
Peluso, Miguel Andrés
Sambeth, Jorge Enrique
Thomas, Horacio Jorge
author Lamaita, Luciano
author_facet Lamaita, Luciano
Peluso, Miguel Andrés
Sambeth, Jorge Enrique
Thomas, Horacio Jorge
author_role author
author2 Peluso, Miguel Andrés
Sambeth, Jorge Enrique
Thomas, Horacio Jorge
author2_role author
author
author
dc.subject.none.fl_str_mv Γ-Mno2 Nsutite
Drifts
Ethanol Oxidation
Manganese Oxides
Vocs
topic Γ-Mno2 Nsutite
Drifts
Ethanol Oxidation
Manganese Oxides
Vocs
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Two MnO2 were prepared by different methods: (i) MnCO 3 decomposition; and (ii) oxidation of acid MnSO4 solution. The combined use of X-ray diffraction (XRD), DRIFTS, DRS-UV-vis and TGA techniques revealed: (i) the presence of Mn4+-Mn3+; (ii) a poor crystallinity; and (iii) OH species at temperatures higher than 200°C. The catalysts were tested in the complete oxidation of ethanol to carbon dioxide and water, and the reaction results showed that the catalytic activity of both samples were larger than MnO2 (pyrolusite, β-MnO2) and Mn2O3 (like bixbyite) oxides. The high activity of the prepared oxides can be related to the simultaneous presence of Mn3+ and Mn4+ ions and OH- species generated by Mn4+ vacancies. In addition, in situ DRIFT spectroscopy demonstrated a different mechanism of adsorption-reaction of ethanol between the two synthesized manganese oxides.
Fil: Lamaita, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
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 ; 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 ; 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 ; Argentina
description Two MnO2 were prepared by different methods: (i) MnCO 3 decomposition; and (ii) oxidation of acid MnSO4 solution. The combined use of X-ray diffraction (XRD), DRIFTS, DRS-UV-vis and TGA techniques revealed: (i) the presence of Mn4+-Mn3+; (ii) a poor crystallinity; and (iii) OH species at temperatures higher than 200°C. The catalysts were tested in the complete oxidation of ethanol to carbon dioxide and water, and the reaction results showed that the catalytic activity of both samples were larger than MnO2 (pyrolusite, β-MnO2) and Mn2O3 (like bixbyite) oxides. The high activity of the prepared oxides can be related to the simultaneous presence of Mn3+ and Mn4+ ions and OH- species generated by Mn4+ vacancies. In addition, in situ DRIFT spectroscopy demonstrated a different mechanism of adsorption-reaction of ethanol between the two synthesized manganese oxides.
publishDate 2005
dc.date.none.fl_str_mv 2005-10-27
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/11336/55477
Lamaita, Luciano; Peluso, Miguel Andrés; Sambeth, Jorge Enrique; Thomas, Horacio Jorge; Synthesis and characterization of manganese oxides employed in VOCs abatement; Elsevier Science; Applied Catalysis B: Environmental; 61; 1-2; 27-10-2005; 114-119
0926-3373
CONICET Digital
CONICET
url http://hdl.handle.net/11336/55477
identifier_str_mv Lamaita, Luciano; Peluso, Miguel Andrés; Sambeth, Jorge Enrique; Thomas, Horacio Jorge; Synthesis and characterization of manganese oxides employed in VOCs abatement; Elsevier Science; Applied Catalysis B: Environmental; 61; 1-2; 27-10-2005; 114-119
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.2005.03.014
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926337305001888
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/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 12.993085

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