Cobalt based catalysts for CO Preferential Oxidation

Autores
Gómez, Leticia Ester; Boix, Alicia Viviana
Año de publicación
2019
Idioma
inglés
Tipo de recurso
parte de libro
Estado
versión publicada
Descripción
In this work, catalysts based oncobalt supported on ZrO2 and CeO2, and CoCeMnOx were studiedfor the CO preferential oxidation (COPrOx) in rich-hydrogen stream able to feedfuel cells. Among them, the CoCeMnOx formulation showed the highest COconversion at low temperatures, while the cobalt oxide supported on ceriapresented the best selectivity toward CO2.The Co3O4 spinel was theactive phase for the CO Preferential Oxidation detected in all catalysts.However, the CoOx-CeO2 and CoCeMnOx catalysts resulted more activethan cobalt oxide supported on zirconia. The presence of ceria close to cobaltspecies promote the redox properties and enhance the catalytic activity. In theCoCeMnOx catalyst prepared by co-precipitation, the incorporation of Mnrepresented an additional positive effect. The presence of Mn promoted there-oxidation of Co2+ to Co3+ and, consequently, theactivity increased at low temperature. By XRD of CoOx-ZrO2 and theCoOx-CeO2 catalysts, the Co3O4 spinel and ZrO2or CeO2 were identified in agreement with Laser-Raman spectra.At the same time the CoCeMnOx catalyst, prepared by co-precipitation ofprecursor salts, showed an incipient development of a new phase (Mn,Co)3O4mixed spinel, due to the intimate contact between elements.
Fil: Gómez, Leticia Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Boix, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Materia
COPROX
(MnCo)3O4 MIXED SPINEL
REDOX COUPLE
CoCeMnOx
CeO2 SUPPORT
XPS
LASER RAMAN SPECTROSCOPY
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:11336/119211
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/119211
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cobalt based catalysts for CO Preferential OxidationGómez, Leticia EsterBoix, Alicia VivianaCOPROX(MnCo)3O4 MIXED SPINELREDOX COUPLECoCeMnOxCeO2 SUPPORTXPSLASER RAMAN SPECTROSCOPYhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work, catalysts based oncobalt supported on ZrO2 and CeO2, and CoCeMnOx were studiedfor the CO preferential oxidation (COPrOx) in rich-hydrogen stream able to feedfuel cells. Among them, the CoCeMnOx formulation showed the highest COconversion at low temperatures, while the cobalt oxide supported on ceriapresented the best selectivity toward CO2.The Co3O4 spinel was theactive phase for the CO Preferential Oxidation detected in all catalysts.However, the CoOx-CeO2 and CoCeMnOx catalysts resulted more activethan cobalt oxide supported on zirconia. The presence of ceria close to cobaltspecies promote the redox properties and enhance the catalytic activity. In theCoCeMnOx catalyst prepared by co-precipitation, the incorporation of Mnrepresented an additional positive effect. The presence of Mn promoted there-oxidation of Co2+ to Co3+ and, consequently, theactivity increased at low temperature. By XRD of CoOx-ZrO2 and theCoOx-CeO2 catalysts, the Co3O4 spinel and ZrO2or CeO2 were identified in agreement with Laser-Raman spectra.At the same time the CoCeMnOx catalyst, prepared by co-precipitation ofprecursor salts, showed an incipient development of a new phase (Mn,Co)3O4mixed spinel, due to the intimate contact between elements.Fil: Gómez, Leticia Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Boix, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaIntechOpenYasemin Yildiz2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookParthttp://purl.org/coar/resource_type/c_3248info:ar-repo/semantics/parteDeLibroapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/119211Gómez, Leticia Ester; Boix, Alicia Viviana; Cobalt based catalysts for CO Preferential Oxidation; IntechOpen; 2019; 1-16978-1-78984-558-7CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.intechopen.com/chapters/68787info:eu-repo/semantics/altIdentifier/doi/10.5772/intechopen.88976info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:54Zoai:ri.conicet.gov.ar:11336/119211instacron: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 09:55:55.303CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cobalt based catalysts for CO Preferential Oxidation
title Cobalt based catalysts for CO Preferential Oxidation
spellingShingle Cobalt based catalysts for CO Preferential Oxidation
Gómez, Leticia Ester
COPROX
(MnCo)3O4 MIXED SPINEL
REDOX COUPLE
CoCeMnOx
CeO2 SUPPORT
XPS
LASER RAMAN SPECTROSCOPY
title_short Cobalt based catalysts for CO Preferential Oxidation
title_full Cobalt based catalysts for CO Preferential Oxidation
title_fullStr Cobalt based catalysts for CO Preferential Oxidation
title_full_unstemmed Cobalt based catalysts for CO Preferential Oxidation
title_sort Cobalt based catalysts for CO Preferential Oxidation
dc.creator.none.fl_str_mv Gómez, Leticia Ester
Boix, Alicia Viviana
author Gómez, Leticia Ester
author_facet Gómez, Leticia Ester
Boix, Alicia Viviana
author_role author
author2 Boix, Alicia Viviana
author2_role author
dc.contributor.none.fl_str_mv Yasemin Yildiz
dc.subject.none.fl_str_mv COPROX
(MnCo)3O4 MIXED SPINEL
REDOX COUPLE
CoCeMnOx
CeO2 SUPPORT
XPS
LASER RAMAN SPECTROSCOPY
topic COPROX
(MnCo)3O4 MIXED SPINEL
REDOX COUPLE
CoCeMnOx
CeO2 SUPPORT
XPS
LASER RAMAN SPECTROSCOPY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work, catalysts based oncobalt supported on ZrO2 and CeO2, and CoCeMnOx were studiedfor the CO preferential oxidation (COPrOx) in rich-hydrogen stream able to feedfuel cells. Among them, the CoCeMnOx formulation showed the highest COconversion at low temperatures, while the cobalt oxide supported on ceriapresented the best selectivity toward CO2.The Co3O4 spinel was theactive phase for the CO Preferential Oxidation detected in all catalysts.However, the CoOx-CeO2 and CoCeMnOx catalysts resulted more activethan cobalt oxide supported on zirconia. The presence of ceria close to cobaltspecies promote the redox properties and enhance the catalytic activity. In theCoCeMnOx catalyst prepared by co-precipitation, the incorporation of Mnrepresented an additional positive effect. The presence of Mn promoted there-oxidation of Co2+ to Co3+ and, consequently, theactivity increased at low temperature. By XRD of CoOx-ZrO2 and theCoOx-CeO2 catalysts, the Co3O4 spinel and ZrO2or CeO2 were identified in agreement with Laser-Raman spectra.At the same time the CoCeMnOx catalyst, prepared by co-precipitation ofprecursor salts, showed an incipient development of a new phase (Mn,Co)3O4mixed spinel, due to the intimate contact between elements.
Fil: Gómez, Leticia Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Boix, Alicia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
description In this work, catalysts based oncobalt supported on ZrO2 and CeO2, and CoCeMnOx were studiedfor the CO preferential oxidation (COPrOx) in rich-hydrogen stream able to feedfuel cells. Among them, the CoCeMnOx formulation showed the highest COconversion at low temperatures, while the cobalt oxide supported on ceriapresented the best selectivity toward CO2.The Co3O4 spinel was theactive phase for the CO Preferential Oxidation detected in all catalysts.However, the CoOx-CeO2 and CoCeMnOx catalysts resulted more activethan cobalt oxide supported on zirconia. The presence of ceria close to cobaltspecies promote the redox properties and enhance the catalytic activity. In theCoCeMnOx catalyst prepared by co-precipitation, the incorporation of Mnrepresented an additional positive effect. The presence of Mn promoted there-oxidation of Co2+ to Co3+ and, consequently, theactivity increased at low temperature. By XRD of CoOx-ZrO2 and theCoOx-CeO2 catalysts, the Co3O4 spinel and ZrO2or CeO2 were identified in agreement with Laser-Raman spectra.At the same time the CoCeMnOx catalyst, prepared by co-precipitation ofprecursor salts, showed an incipient development of a new phase (Mn,Co)3O4mixed spinel, due to the intimate contact between elements.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/bookPart
http://purl.org/coar/resource_type/c_3248
info:ar-repo/semantics/parteDeLibro
status_str publishedVersion
format bookPart
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/119211
Gómez, Leticia Ester; Boix, Alicia Viviana; Cobalt based catalysts for CO Preferential Oxidation; IntechOpen; 2019; 1-16
978-1-78984-558-7
CONICET Digital
CONICET
url http://hdl.handle.net/11336/119211
identifier_str_mv Gómez, Leticia Ester; Boix, Alicia Viviana; Cobalt based catalysts for CO Preferential Oxidation; IntechOpen; 2019; 1-16
978-1-78984-558-7
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.intechopen.com/chapters/68787
info:eu-repo/semantics/altIdentifier/doi/10.5772/intechopen.88976
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
dc.publisher.none.fl_str_mv IntechOpen
publisher.none.fl_str_mv IntechOpen
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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