Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.

Autores
Muñoz, Fernando Francisco; Baker, Richard T.; Leyva de Guglielmino, Ana Gabriela; Fuentes, Rodolfo Oscar
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present work, 1 wt% and 5 wt% Pd/GDC10 (Gd0.1Ce0.9O1.95) nanopowders were prepared by two different methods: (a) cation complexation (CC) and (b) incipient wetness impregnation (WI) of an aqueous Pd2+ solution onto GDC10 nanopowders. All samples were characterised by X-ray diffraction (XRD), thermal analysis (TG/DTA), specific surface area determination and high resolution transmission electron microscopy (HRTEM). In order to study the oxidation state of Pd in samples with and without reducing treatments, XANES experiments at the Pd L3-edge were carried out. In situ Ce L3-edge XANES experiments were performed under reducing conditions in order to investigate the reduction behaviour of these materials. The addition of Pd to the GDC10 nanopowders increased the reducibility of Ce in the mixed oxide. Finally, catalytic tests for CH4 combustion were performed on the Pd/GDC10 nanopowders. Catalysts with higher Pd loading (5 wt%) exhibited the best performance for CH4 combustion. The influence of preparation method was evident for catalysts with 1 wt% Pd, the cation complexation method resulting in more active catalysts than the wetness impregnation method.
Fil: Muñoz, Fernando Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; Argentina
Fil: Baker, Richard T.. University of St. Andrews; Reino Unido
Fil: Leyva de Guglielmino, Ana Gabriela. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Departamento de Física; Argentina
Fil: Fuentes, Rodolfo Oscar.
Materia
Solid Oxide Fuel Cells
Supported Pd Catalysts
Nanostructured Ceria-Gadolinia Catalyst Supports
X-Ray Powder Diffraction
X-Ray Absorption Spectroscopy
Hrtem
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:11336/22592
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.Muñoz, Fernando FranciscoBaker, Richard T.Leyva de Guglielmino, Ana GabrielaFuentes, Rodolfo OscarSolid Oxide Fuel CellsSupported Pd CatalystsNanostructured Ceria-Gadolinia Catalyst SupportsX-Ray Powder DiffractionX-Ray Absorption SpectroscopyHrtemhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In the present work, 1 wt% and 5 wt% Pd/GDC10 (Gd0.1Ce0.9O1.95) nanopowders were prepared by two different methods: (a) cation complexation (CC) and (b) incipient wetness impregnation (WI) of an aqueous Pd2+ solution onto GDC10 nanopowders. All samples were characterised by X-ray diffraction (XRD), thermal analysis (TG/DTA), specific surface area determination and high resolution transmission electron microscopy (HRTEM). In order to study the oxidation state of Pd in samples with and without reducing treatments, XANES experiments at the Pd L3-edge were carried out. In situ Ce L3-edge XANES experiments were performed under reducing conditions in order to investigate the reduction behaviour of these materials. The addition of Pd to the GDC10 nanopowders increased the reducibility of Ce in the mixed oxide. Finally, catalytic tests for CH4 combustion were performed on the Pd/GDC10 nanopowders. Catalysts with higher Pd loading (5 wt%) exhibited the best performance for CH4 combustion. The influence of preparation method was evident for catalysts with 1 wt% Pd, the cation complexation method resulting in more active catalysts than the wetness impregnation method.Fil: Muñoz, Fernando Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; ArgentinaFil: Baker, Richard T.. University of St. Andrews; Reino UnidoFil: Leyva de Guglielmino, Ana Gabriela. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Departamento de Física; ArgentinaFil: Fuentes, Rodolfo Oscar.Elsevier2013-02info: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/11336/22592Muñoz, Fernando Francisco; Baker, Richard T.; Leyva de Guglielmino, Ana Gabriela; Fuentes, Rodolfo Oscar; Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.; Elsevier; Applied Catalysis B: Environmental; 136; 2-2013; 122-1320926-3373CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2013.02.008info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337313000830info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:37:13Zoai:ri.conicet.gov.ar:11336/22592instacron: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:34982025-09-17 11:37:13.933CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
title Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
spellingShingle Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
Muñoz, Fernando Francisco
Solid Oxide Fuel Cells
Supported Pd Catalysts
Nanostructured Ceria-Gadolinia Catalyst Supports
X-Ray Powder Diffraction
X-Ray Absorption Spectroscopy
Hrtem
title_short Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
title_full Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
title_fullStr Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
title_full_unstemmed Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
title_sort Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.
dc.creator.none.fl_str_mv Muñoz, Fernando Francisco
Baker, Richard T.
Leyva de Guglielmino, Ana Gabriela
Fuentes, Rodolfo Oscar
author Muñoz, Fernando Francisco
author_facet Muñoz, Fernando Francisco
Baker, Richard T.
Leyva de Guglielmino, Ana Gabriela
Fuentes, Rodolfo Oscar
author_role author
author2 Baker, Richard T.
Leyva de Guglielmino, Ana Gabriela
Fuentes, Rodolfo Oscar
author2_role author
author
author
dc.subject.none.fl_str_mv Solid Oxide Fuel Cells
Supported Pd Catalysts
Nanostructured Ceria-Gadolinia Catalyst Supports
X-Ray Powder Diffraction
X-Ray Absorption Spectroscopy
Hrtem
topic Solid Oxide Fuel Cells
Supported Pd Catalysts
Nanostructured Ceria-Gadolinia Catalyst Supports
X-Ray Powder Diffraction
X-Ray Absorption Spectroscopy
Hrtem
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the present work, 1 wt% and 5 wt% Pd/GDC10 (Gd0.1Ce0.9O1.95) nanopowders were prepared by two different methods: (a) cation complexation (CC) and (b) incipient wetness impregnation (WI) of an aqueous Pd2+ solution onto GDC10 nanopowders. All samples were characterised by X-ray diffraction (XRD), thermal analysis (TG/DTA), specific surface area determination and high resolution transmission electron microscopy (HRTEM). In order to study the oxidation state of Pd in samples with and without reducing treatments, XANES experiments at the Pd L3-edge were carried out. In situ Ce L3-edge XANES experiments were performed under reducing conditions in order to investigate the reduction behaviour of these materials. The addition of Pd to the GDC10 nanopowders increased the reducibility of Ce in the mixed oxide. Finally, catalytic tests for CH4 combustion were performed on the Pd/GDC10 nanopowders. Catalysts with higher Pd loading (5 wt%) exhibited the best performance for CH4 combustion. The influence of preparation method was evident for catalysts with 1 wt% Pd, the cation complexation method resulting in more active catalysts than the wetness impregnation method.
Fil: Muñoz, Fernando Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; Argentina
Fil: Baker, Richard T.. University of St. Andrews; Reino Unido
Fil: Leyva de Guglielmino, Ana Gabriela. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Departamento de Física; Argentina
Fil: Fuentes, Rodolfo Oscar.
description In the present work, 1 wt% and 5 wt% Pd/GDC10 (Gd0.1Ce0.9O1.95) nanopowders were prepared by two different methods: (a) cation complexation (CC) and (b) incipient wetness impregnation (WI) of an aqueous Pd2+ solution onto GDC10 nanopowders. All samples were characterised by X-ray diffraction (XRD), thermal analysis (TG/DTA), specific surface area determination and high resolution transmission electron microscopy (HRTEM). In order to study the oxidation state of Pd in samples with and without reducing treatments, XANES experiments at the Pd L3-edge were carried out. In situ Ce L3-edge XANES experiments were performed under reducing conditions in order to investigate the reduction behaviour of these materials. The addition of Pd to the GDC10 nanopowders increased the reducibility of Ce in the mixed oxide. Finally, catalytic tests for CH4 combustion were performed on the Pd/GDC10 nanopowders. Catalysts with higher Pd loading (5 wt%) exhibited the best performance for CH4 combustion. The influence of preparation method was evident for catalysts with 1 wt% Pd, the cation complexation method resulting in more active catalysts than the wetness impregnation method.
publishDate 2013
dc.date.none.fl_str_mv 2013-02
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/11336/22592
Muñoz, Fernando Francisco; Baker, Richard T.; Leyva de Guglielmino, Ana Gabriela; Fuentes, Rodolfo Oscar; Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.; Elsevier; Applied Catalysis B: Environmental; 136; 2-2013; 122-132
0926-3373
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22592
identifier_str_mv Muñoz, Fernando Francisco; Baker, Richard T.; Leyva de Guglielmino, Ana Gabriela; Fuentes, Rodolfo Oscar; Reduction and catalytic behaviour of nanostructured Pd/gadolinia-doped ceria catalysts for methane combustion.; Elsevier; Applied Catalysis B: Environmental; 136; 2-2013; 122-132
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.2013.02.008
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337313000830
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 13.000565

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