Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane

Autores
Alvarez-Galvan, Consuelo; Trunschke, Annette; Falcon, Horacio; Sanchez-Sanchez, Maricruz; Campos Martín, Jose Miguel; Schlögl, Robert; García Fierro, José Luis
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
LaCoO3 perovskite-type oxides were prepared by microwave-assisted coprecipitation route and investigated in the catalytic partial oxidation of methane (CPOM) to syngas. This preparation method aims to achieve higher specific surface areas (ssa) than soft-chemical methods commonly used in the preparation of engineered materials. In an attempt to accomplish the creation of mesostructured porous LaCoO3, an ionic template such as cetyl trimethyl ammonium bromide has been used as endotemplate in some samples. The influence of pH and the type of precipitating agent has been studied. The materials have been characterized at different levels: morphology has been studied by scanning electron microscopy, textural properties by nitrogen adsorption-desorption at -196°C, structural analysis by X-ray diffraction, surface composition by X-ray photoelectron spectroscopy, thermal stability by thermogravimetric analysis, and carbon formation in spent catalysts by Raman spectroscopy. Structure-activity correlations point out that the precipitating agent has a key role on the morphology and porosity of the resultant oxide, as well as on the average crystalline domain of lanthanum perovskite (catalyst precursor). Thus, the use of ammonium hydroxide as precipitant leads to materials with a higher surface area and a greater ssa of cobalt (per unit mass), improving their catalytic performance for the CPOM reaction. The best catalytic performance was found for the catalyst prepared using ammonium hydroxide as precipitant (pH 9) and without adding CTAB as endotemplate.
Fil: Alvarez-Galvan, Consuelo. Consejo Superior de Investigaciones Científicas; España
Fil: Trunschke, Annette. Fritz Haber Institute Of The Max Planck Society; Alemania
Fil: Falcon, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Sanchez-Sanchez, Maricruz. Universitat Technical Zu Munich; Alemania. Fritz Haber Institute Of The Max Planck Society; Alemania
Fil: Campos Martín, Jose Miguel. Consejo Superior de Investigaciones Científicas; España
Fil: Schlögl, Robert. Fritz Haber Institute Of The Max Planck Society; Alemania
Fil: García Fierro, José Luis. Consejo Superior de Investigaciones Científicas; España
Materia
ENDOTEMPLATE
METHANE
MICROWAVE-ASSISTED COPRECIPITATION
PARTIAL OXIDATION
SYNGAS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/88194
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/88194
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methaneAlvarez-Galvan, ConsueloTrunschke, AnnetteFalcon, HoracioSanchez-Sanchez, MaricruzCampos Martín, Jose MiguelSchlögl, RobertGarcía Fierro, José LuisENDOTEMPLATEMETHANEMICROWAVE-ASSISTED COPRECIPITATIONPARTIAL OXIDATIONSYNGAShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1LaCoO3 perovskite-type oxides were prepared by microwave-assisted coprecipitation route and investigated in the catalytic partial oxidation of methane (CPOM) to syngas. This preparation method aims to achieve higher specific surface areas (ssa) than soft-chemical methods commonly used in the preparation of engineered materials. In an attempt to accomplish the creation of mesostructured porous LaCoO3, an ionic template such as cetyl trimethyl ammonium bromide has been used as endotemplate in some samples. The influence of pH and the type of precipitating agent has been studied. The materials have been characterized at different levels: morphology has been studied by scanning electron microscopy, textural properties by nitrogen adsorption-desorption at -196°C, structural analysis by X-ray diffraction, surface composition by X-ray photoelectron spectroscopy, thermal stability by thermogravimetric analysis, and carbon formation in spent catalysts by Raman spectroscopy. Structure-activity correlations point out that the precipitating agent has a key role on the morphology and porosity of the resultant oxide, as well as on the average crystalline domain of lanthanum perovskite (catalyst precursor). Thus, the use of ammonium hydroxide as precipitant leads to materials with a higher surface area and a greater ssa of cobalt (per unit mass), improving their catalytic performance for the CPOM reaction. The best catalytic performance was found for the catalyst prepared using ammonium hydroxide as precipitant (pH 9) and without adding CTAB as endotemplate.Fil: Alvarez-Galvan, Consuelo. Consejo Superior de Investigaciones Científicas; EspañaFil: Trunschke, Annette. Fritz Haber Institute Of The Max Planck Society; AlemaniaFil: Falcon, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; ArgentinaFil: Sanchez-Sanchez, Maricruz. Universitat Technical Zu Munich; Alemania. Fritz Haber Institute Of The Max Planck Society; AlemaniaFil: Campos Martín, Jose Miguel. Consejo Superior de Investigaciones Científicas; EspañaFil: Schlögl, Robert. Fritz Haber Institute Of The Max Planck Society; AlemaniaFil: García Fierro, José Luis. Consejo Superior de Investigaciones Científicas; EspañaFrontiers Media S.A.2018-04-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88194Alvarez-Galvan, Consuelo; Trunschke, Annette; Falcon, Horacio; Sanchez-Sanchez, Maricruz; Campos Martín, Jose Miguel; et al.; Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane; Frontiers Media S.A.; Frontiers in Energy Research; 6; 30-4-2018; 18-182296-598XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3389/fenrg.2018.00018info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fenrg.2018.00018/fullinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:33Zoai:ri.conicet.gov.ar:11336/88194instacron: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 09:37:33.713CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
title Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
spellingShingle Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
Alvarez-Galvan, Consuelo
ENDOTEMPLATE
METHANE
MICROWAVE-ASSISTED COPRECIPITATION
PARTIAL OXIDATION
SYNGAS
title_short Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
title_full Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
title_fullStr Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
title_full_unstemmed Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
title_sort Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane
dc.creator.none.fl_str_mv Alvarez-Galvan, Consuelo
Trunschke, Annette
Falcon, Horacio
Sanchez-Sanchez, Maricruz
Campos Martín, Jose Miguel
Schlögl, Robert
García Fierro, José Luis
author Alvarez-Galvan, Consuelo
author_facet Alvarez-Galvan, Consuelo
Trunschke, Annette
Falcon, Horacio
Sanchez-Sanchez, Maricruz
Campos Martín, Jose Miguel
Schlögl, Robert
García Fierro, José Luis
author_role author
author2 Trunschke, Annette
Falcon, Horacio
Sanchez-Sanchez, Maricruz
Campos Martín, Jose Miguel
Schlögl, Robert
García Fierro, José Luis
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv ENDOTEMPLATE
METHANE
MICROWAVE-ASSISTED COPRECIPITATION
PARTIAL OXIDATION
SYNGAS
topic ENDOTEMPLATE
METHANE
MICROWAVE-ASSISTED COPRECIPITATION
PARTIAL OXIDATION
SYNGAS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv LaCoO3 perovskite-type oxides were prepared by microwave-assisted coprecipitation route and investigated in the catalytic partial oxidation of methane (CPOM) to syngas. This preparation method aims to achieve higher specific surface areas (ssa) than soft-chemical methods commonly used in the preparation of engineered materials. In an attempt to accomplish the creation of mesostructured porous LaCoO3, an ionic template such as cetyl trimethyl ammonium bromide has been used as endotemplate in some samples. The influence of pH and the type of precipitating agent has been studied. The materials have been characterized at different levels: morphology has been studied by scanning electron microscopy, textural properties by nitrogen adsorption-desorption at -196°C, structural analysis by X-ray diffraction, surface composition by X-ray photoelectron spectroscopy, thermal stability by thermogravimetric analysis, and carbon formation in spent catalysts by Raman spectroscopy. Structure-activity correlations point out that the precipitating agent has a key role on the morphology and porosity of the resultant oxide, as well as on the average crystalline domain of lanthanum perovskite (catalyst precursor). Thus, the use of ammonium hydroxide as precipitant leads to materials with a higher surface area and a greater ssa of cobalt (per unit mass), improving their catalytic performance for the CPOM reaction. The best catalytic performance was found for the catalyst prepared using ammonium hydroxide as precipitant (pH 9) and without adding CTAB as endotemplate.
Fil: Alvarez-Galvan, Consuelo. Consejo Superior de Investigaciones Científicas; España
Fil: Trunschke, Annette. Fritz Haber Institute Of The Max Planck Society; Alemania
Fil: Falcon, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
Fil: Sanchez-Sanchez, Maricruz. Universitat Technical Zu Munich; Alemania. Fritz Haber Institute Of The Max Planck Society; Alemania
Fil: Campos Martín, Jose Miguel. Consejo Superior de Investigaciones Científicas; España
Fil: Schlögl, Robert. Fritz Haber Institute Of The Max Planck Society; Alemania
Fil: García Fierro, José Luis. Consejo Superior de Investigaciones Científicas; España
description LaCoO3 perovskite-type oxides were prepared by microwave-assisted coprecipitation route and investigated in the catalytic partial oxidation of methane (CPOM) to syngas. This preparation method aims to achieve higher specific surface areas (ssa) than soft-chemical methods commonly used in the preparation of engineered materials. In an attempt to accomplish the creation of mesostructured porous LaCoO3, an ionic template such as cetyl trimethyl ammonium bromide has been used as endotemplate in some samples. The influence of pH and the type of precipitating agent has been studied. The materials have been characterized at different levels: morphology has been studied by scanning electron microscopy, textural properties by nitrogen adsorption-desorption at -196°C, structural analysis by X-ray diffraction, surface composition by X-ray photoelectron spectroscopy, thermal stability by thermogravimetric analysis, and carbon formation in spent catalysts by Raman spectroscopy. Structure-activity correlations point out that the precipitating agent has a key role on the morphology and porosity of the resultant oxide, as well as on the average crystalline domain of lanthanum perovskite (catalyst precursor). Thus, the use of ammonium hydroxide as precipitant leads to materials with a higher surface area and a greater ssa of cobalt (per unit mass), improving their catalytic performance for the CPOM reaction. The best catalytic performance was found for the catalyst prepared using ammonium hydroxide as precipitant (pH 9) and without adding CTAB as endotemplate.
publishDate 2018
dc.date.none.fl_str_mv 2018-04-30
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/11336/88194
Alvarez-Galvan, Consuelo; Trunschke, Annette; Falcon, Horacio; Sanchez-Sanchez, Maricruz; Campos Martín, Jose Miguel; et al.; Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane; Frontiers Media S.A.; Frontiers in Energy Research; 6; 30-4-2018; 18-18
2296-598X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88194
identifier_str_mv Alvarez-Galvan, Consuelo; Trunschke, Annette; Falcon, Horacio; Sanchez-Sanchez, Maricruz; Campos Martín, Jose Miguel; et al.; Microwave-assisted coprecipitation synthesis of LaCoO3 nanoparticles and their catalytic activity for syngas production by partial oxidation of methane; Frontiers Media S.A.; Frontiers in Energy Research; 6; 30-4-2018; 18-18
2296-598X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3389/fenrg.2018.00018
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fenrg.2018.00018/full
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Frontiers Media S.A.
publisher.none.fl_str_mv Frontiers Media S.A.
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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