Fe/MgO formulations for the catalytic combustion of methane

Autores
Spretz, R.; Marchetti, Sergio Gustavo; Ulla, Maria Alicia del H.; Lombardo, Eduardo Agustin
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fe/MgO catalysts containing between 1.5 and 9 wt% iron were prepared by impregnation and calcined at 1073 K for 10 h. The solids were characterized by XRD and Raman and Mössbauer spectroscopies. They all showed that the solids are made up of MgFe2O4 spinel clusters and Fe3+ dispersed in the MgO matrix. The concentrations of MgFe2O4 and Fe3+ were calculated from the Mössbauer data. The former increases by a factor of 23 while the latter remains almost constant when the iron loading varies between 1.5 and 9 wt%. The catalytic activity correlates with the spinel weight fraction in the Fe/MgO system. Both the SEM micrographs and the EPMA analyses of the catalysts indicate that the solid surface is made up of exposed patches of MgFe2O4 and MgO. This surface feature explains the plateau observed when the reaction rate constant is plotted versus the iron loading.
Fil: Spretz, R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; 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 ; 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 ; Argentina
Materia
Methane Combustion
Fe/Mgo
Mgfe2o4
Ch4 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:11336/37103
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/37103
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network_name_str CONICET Digital (CONICET)
spelling Fe/MgO formulations for the catalytic combustion of methaneSpretz, R.Marchetti, Sergio GustavoUlla, Maria Alicia del H.Lombardo, Eduardo AgustinMethane CombustionFe/MgoMgfe2o4Ch4 Oxidationhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Fe/MgO catalysts containing between 1.5 and 9 wt% iron were prepared by impregnation and calcined at 1073 K for 10 h. The solids were characterized by XRD and Raman and Mössbauer spectroscopies. They all showed that the solids are made up of MgFe2O4 spinel clusters and Fe3+ dispersed in the MgO matrix. The concentrations of MgFe2O4 and Fe3+ were calculated from the Mössbauer data. The former increases by a factor of 23 while the latter remains almost constant when the iron loading varies between 1.5 and 9 wt%. The catalytic activity correlates with the spinel weight fraction in the Fe/MgO system. Both the SEM micrographs and the EPMA analyses of the catalysts indicate that the solid surface is made up of exposed patches of MgFe2O4 and MgO. This surface feature explains the plateau observed when the reaction rate constant is plotted versus the iron loading.Fil: Spretz, R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; 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 ; ArgentinaFil: Lombardo, Eduardo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaElsevier2000-09info: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/11336/37103Spretz, R.; Marchetti, Sergio Gustavo; Ulla, Maria Alicia del H.; Lombardo, Eduardo Agustin; Fe/MgO formulations for the catalytic combustion of methane; Elsevier; Journal of Catalysis; 194; 2; 9-2000; 167-1740021-9517CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1006/jcat.2000.2921info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:36Zoai:ri.conicet.gov.ar:11336/37103instacron: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 09:55:37.084CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fe/MgO formulations for the catalytic combustion of methane
title Fe/MgO formulations for the catalytic combustion of methane
spellingShingle Fe/MgO formulations for the catalytic combustion of methane
Spretz, R.
Methane Combustion
Fe/Mgo
Mgfe2o4
Ch4 Oxidation
title_short Fe/MgO formulations for the catalytic combustion of methane
title_full Fe/MgO formulations for the catalytic combustion of methane
title_fullStr Fe/MgO formulations for the catalytic combustion of methane
title_full_unstemmed Fe/MgO formulations for the catalytic combustion of methane
title_sort Fe/MgO formulations for the catalytic combustion of methane
dc.creator.none.fl_str_mv Spretz, R.
Marchetti, Sergio Gustavo
Ulla, Maria Alicia del H.
Lombardo, Eduardo Agustin
author Spretz, R.
author_facet Spretz, R.
Marchetti, Sergio Gustavo
Ulla, Maria Alicia del H.
Lombardo, Eduardo Agustin
author_role author
author2 Marchetti, Sergio Gustavo
Ulla, Maria Alicia del H.
Lombardo, Eduardo Agustin
author2_role author
author
author
dc.subject.none.fl_str_mv Methane Combustion
Fe/Mgo
Mgfe2o4
Ch4 Oxidation
topic Methane Combustion
Fe/Mgo
Mgfe2o4
Ch4 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 Fe/MgO catalysts containing between 1.5 and 9 wt% iron were prepared by impregnation and calcined at 1073 K for 10 h. The solids were characterized by XRD and Raman and Mössbauer spectroscopies. They all showed that the solids are made up of MgFe2O4 spinel clusters and Fe3+ dispersed in the MgO matrix. The concentrations of MgFe2O4 and Fe3+ were calculated from the Mössbauer data. The former increases by a factor of 23 while the latter remains almost constant when the iron loading varies between 1.5 and 9 wt%. The catalytic activity correlates with the spinel weight fraction in the Fe/MgO system. Both the SEM micrographs and the EPMA analyses of the catalysts indicate that the solid surface is made up of exposed patches of MgFe2O4 and MgO. This surface feature explains the plateau observed when the reaction rate constant is plotted versus the iron loading.
Fil: Spretz, R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; 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 ; 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 ; Argentina
description Fe/MgO catalysts containing between 1.5 and 9 wt% iron were prepared by impregnation and calcined at 1073 K for 10 h. The solids were characterized by XRD and Raman and Mössbauer spectroscopies. They all showed that the solids are made up of MgFe2O4 spinel clusters and Fe3+ dispersed in the MgO matrix. The concentrations of MgFe2O4 and Fe3+ were calculated from the Mössbauer data. The former increases by a factor of 23 while the latter remains almost constant when the iron loading varies between 1.5 and 9 wt%. The catalytic activity correlates with the spinel weight fraction in the Fe/MgO system. Both the SEM micrographs and the EPMA analyses of the catalysts indicate that the solid surface is made up of exposed patches of MgFe2O4 and MgO. This surface feature explains the plateau observed when the reaction rate constant is plotted versus the iron loading.
publishDate 2000
dc.date.none.fl_str_mv 2000-09
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/11336/37103
Spretz, R.; Marchetti, Sergio Gustavo; Ulla, Maria Alicia del H.; Lombardo, Eduardo Agustin; Fe/MgO formulations for the catalytic combustion of methane; Elsevier; Journal of Catalysis; 194; 2; 9-2000; 167-174
0021-9517
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37103
identifier_str_mv Spretz, R.; Marchetti, Sergio Gustavo; Ulla, Maria Alicia del H.; Lombardo, Eduardo Agustin; Fe/MgO formulations for the catalytic combustion of methane; Elsevier; Journal of Catalysis; 194; 2; 9-2000; 167-174
0021-9517
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1006/jcat.2000.2921
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
publisher.none.fl_str_mv Elsevier
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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