Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports

Autores
Barrios, Celina; Baltanas, Miguel Angel; Bolmaro, Raul Eduardo; Bonivardi, Adrian Lionel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cerium(IV) and zinc(II) oxide nanocomposite powders (Zn-to-Ce atomic ratio between 0.5 and 2) as well as the pure oxideswere prepared by co-precipitation of cerium(III) and zinc(II) cations with oxalate (OC) or carbonate anions (CC), as active catalytic supports for the steamreforming of methanol (SRM) reaction. After the study of the decomposition of the precipitates in oxidizing atmosphere by thermogravimetry, differential scanning calorimetry, temperature-programmed oxidation (using infrared and mass spectrometry) and X-ray diffraction, a global reaction pathway for the decomposition of each type of precipitateswas proposed. The nanostructural characterization of the calcined composites at 723 Kwas followed by refined XRD analysis. Itwas possible to conclude that Zn(II) was not incorporated into the ceria lattice in any case. The size of the CeO2 crystals was rather constant (~10?15 nm) in all the ZnO?CeO2 nanocomposite powders, just as in the pure ceria (13?14 nm). Instead, the crystalline domains of ZnO were smaller in the nanocomposites than in pure zinc oxide (31?78 vs. 103? 118 nm, respectively), and even smaller in the CC than in the OC materials (31?38 vs. 57?78 nm for CC vs. OC, respectively). Upon the incorporation of palladiumto the oxides, to provide the metallic function on the catalysts, the carbonate-derived composites showed a better catalytic performance for the SRM reaction. Said improvement (in terms of percent selectivity to CO2) could be attributed to the improved dispersion of zinc oxide achieved on the CC nanocomposites.
Fil: Barrios, Celina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Bolmaro, Raul Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Materia
Nanocomposite Powders
Active Catalytic Supports
Zinc Oxide
Cerium Oxide
Palladium
Hydrogen Production
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:11336/6413
Acceder
id CONICETDig_94c67be1350b68e6b7044f3cd882b140
oai_identifier_str oai:ri.conicet.gov.ar:11336/6413
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supportsBarrios, CelinaBaltanas, Miguel AngelBolmaro, Raul EduardoBonivardi, Adrian LionelNanocomposite PowdersActive Catalytic SupportsZinc OxideCerium OxidePalladiumHydrogen Productionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Cerium(IV) and zinc(II) oxide nanocomposite powders (Zn-to-Ce atomic ratio between 0.5 and 2) as well as the pure oxideswere prepared by co-precipitation of cerium(III) and zinc(II) cations with oxalate (OC) or carbonate anions (CC), as active catalytic supports for the steamreforming of methanol (SRM) reaction. After the study of the decomposition of the precipitates in oxidizing atmosphere by thermogravimetry, differential scanning calorimetry, temperature-programmed oxidation (using infrared and mass spectrometry) and X-ray diffraction, a global reaction pathway for the decomposition of each type of precipitateswas proposed. The nanostructural characterization of the calcined composites at 723 Kwas followed by refined XRD analysis. Itwas possible to conclude that Zn(II) was not incorporated into the ceria lattice in any case. The size of the CeO2 crystals was rather constant (~10?15 nm) in all the ZnO?CeO2 nanocomposite powders, just as in the pure ceria (13?14 nm). Instead, the crystalline domains of ZnO were smaller in the nanocomposites than in pure zinc oxide (31?78 vs. 103? 118 nm, respectively), and even smaller in the CC than in the OC materials (31?38 vs. 57?78 nm for CC vs. OC, respectively). Upon the incorporation of palladiumto the oxides, to provide the metallic function on the catalysts, the carbonate-derived composites showed a better catalytic performance for the SRM reaction. Said improvement (in terms of percent selectivity to CO2) could be attributed to the improved dispersion of zinc oxide achieved on the CC nanocomposites.Fil: Barrios, Celina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaFil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaFil: Bolmaro, Raul Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); ArgentinaFil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaElsevier2014-07info: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/11336/6413Barrios, Celina; Baltanas, Miguel Angel; Bolmaro, Raul Eduardo; Bonivardi, Adrian Lionel; Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports; Elsevier; Powder Technology; 267; 7-2014; 180-1920032-5910enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032591014006160info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2014.07.006info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:18:42Zoai:ri.conicet.gov.ar:11336/6413instacron: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:34982025-10-22 11:18:42.957CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
title Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
spellingShingle Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
Barrios, Celina
Nanocomposite Powders
Active Catalytic Supports
Zinc Oxide
Cerium Oxide
Palladium
Hydrogen Production
title_short Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
title_full Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
title_fullStr Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
title_full_unstemmed Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
title_sort Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports
dc.creator.none.fl_str_mv Barrios, Celina
Baltanas, Miguel Angel
Bolmaro, Raul Eduardo
Bonivardi, Adrian Lionel
author Barrios, Celina
author_facet Barrios, Celina
Baltanas, Miguel Angel
Bolmaro, Raul Eduardo
Bonivardi, Adrian Lionel
author_role author
author2 Baltanas, Miguel Angel
Bolmaro, Raul Eduardo
Bonivardi, Adrian Lionel
author2_role author
author
author
dc.subject.none.fl_str_mv Nanocomposite Powders
Active Catalytic Supports
Zinc Oxide
Cerium Oxide
Palladium
Hydrogen Production
topic Nanocomposite Powders
Active Catalytic Supports
Zinc Oxide
Cerium Oxide
Palladium
Hydrogen Production
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cerium(IV) and zinc(II) oxide nanocomposite powders (Zn-to-Ce atomic ratio between 0.5 and 2) as well as the pure oxideswere prepared by co-precipitation of cerium(III) and zinc(II) cations with oxalate (OC) or carbonate anions (CC), as active catalytic supports for the steamreforming of methanol (SRM) reaction. After the study of the decomposition of the precipitates in oxidizing atmosphere by thermogravimetry, differential scanning calorimetry, temperature-programmed oxidation (using infrared and mass spectrometry) and X-ray diffraction, a global reaction pathway for the decomposition of each type of precipitateswas proposed. The nanostructural characterization of the calcined composites at 723 Kwas followed by refined XRD analysis. Itwas possible to conclude that Zn(II) was not incorporated into the ceria lattice in any case. The size of the CeO2 crystals was rather constant (~10?15 nm) in all the ZnO?CeO2 nanocomposite powders, just as in the pure ceria (13?14 nm). Instead, the crystalline domains of ZnO were smaller in the nanocomposites than in pure zinc oxide (31?78 vs. 103? 118 nm, respectively), and even smaller in the CC than in the OC materials (31?38 vs. 57?78 nm for CC vs. OC, respectively). Upon the incorporation of palladiumto the oxides, to provide the metallic function on the catalysts, the carbonate-derived composites showed a better catalytic performance for the SRM reaction. Said improvement (in terms of percent selectivity to CO2) could be attributed to the improved dispersion of zinc oxide achieved on the CC nanocomposites.
Fil: Barrios, Celina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Baltanas, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Bolmaro, Raul Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
Fil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
description Cerium(IV) and zinc(II) oxide nanocomposite powders (Zn-to-Ce atomic ratio between 0.5 and 2) as well as the pure oxideswere prepared by co-precipitation of cerium(III) and zinc(II) cations with oxalate (OC) or carbonate anions (CC), as active catalytic supports for the steamreforming of methanol (SRM) reaction. After the study of the decomposition of the precipitates in oxidizing atmosphere by thermogravimetry, differential scanning calorimetry, temperature-programmed oxidation (using infrared and mass spectrometry) and X-ray diffraction, a global reaction pathway for the decomposition of each type of precipitateswas proposed. The nanostructural characterization of the calcined composites at 723 Kwas followed by refined XRD analysis. Itwas possible to conclude that Zn(II) was not incorporated into the ceria lattice in any case. The size of the CeO2 crystals was rather constant (~10?15 nm) in all the ZnO?CeO2 nanocomposite powders, just as in the pure ceria (13?14 nm). Instead, the crystalline domains of ZnO were smaller in the nanocomposites than in pure zinc oxide (31?78 vs. 103? 118 nm, respectively), and even smaller in the CC than in the OC materials (31?38 vs. 57?78 nm for CC vs. OC, respectively). Upon the incorporation of palladiumto the oxides, to provide the metallic function on the catalysts, the carbonate-derived composites showed a better catalytic performance for the SRM reaction. Said improvement (in terms of percent selectivity to CO2) could be attributed to the improved dispersion of zinc oxide achieved on the CC nanocomposites.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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/11336/6413
Barrios, Celina; Baltanas, Miguel Angel; Bolmaro, Raul Eduardo; Bonivardi, Adrian Lionel; Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports; Elsevier; Powder Technology; 267; 7-2014; 180-192
0032-5910
url http://hdl.handle.net/11336/6413
identifier_str_mv Barrios, Celina; Baltanas, Miguel Angel; Bolmaro, Raul Eduardo; Bonivardi, Adrian Lionel; Preparation and structural characterization of Zn and CeO2 nanocomposite materials as catalytic supports; Elsevier; Powder Technology; 267; 7-2014; 180-192
0032-5910
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032591014006160
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2014.07.006
info:eu-repo/semantics/altIdentifier/doi/
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
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 12.982451

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