Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming

Autores
Moreno, M. S.; Wang, Feiya; Malac, M.; Kasama, T.; Gigola, Carlos Eugenio; Costilla, Ignacio Oscar; Sánchez, M. D.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have investigated the interaction between Pd and Ce in a 0.47 wt % CeOx–Pd 1 wt %/ -Al2O3 catalyst that is used in the reforming reaction of CH4 with CO2. The freshly reduced catalyst was characterized by various electron microscopy techniques, such as elemental mapping, Z-contrast imaging, and electron energy-loss spectroscopy to understand the role of Ce on a microscopic scale. The high spatial resolution elemental mapping indicates that CeOx is located in close proximity of the palladium nanoparticles. High-resolution lattice images and energy-loss spectra obtained in the vicinity of the Pd particles show an anisotropic distribution of CeOx crystallites limited to the interface region between Pd and the substrate but not covering the surface of the Pd nanoparticles. Energy-loss near edge fine structure of Pd M edges reveals that the Pd nanoparticles are not oxidized.
Fil: Moreno, M. S.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Wang, Feiya. National Institute for Nanotechnology; Canadá
Fil: Malac, M.. National Institute for Nanotechnology; Canadá
Fil: Kasama, T.. University of Cambridge; Reino Unido
Fil: Gigola, Carlos Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Costilla, Ignacio Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Sánchez, M. D.. Universidad Nacional del Sur. Departamento de Física; Argentina
Materia
reforming
Pd
Ce
methane
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:11336/42795
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reformingMoreno, M. S.Wang, FeiyaMalac, M.Kasama, T.Gigola, Carlos EugenioCostilla, Ignacio OscarSánchez, M. D.reformingPdCemethanehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have investigated the interaction between Pd and Ce in a 0.47 wt % CeOx–Pd 1 wt %/ -Al2O3 catalyst that is used in the reforming reaction of CH4 with CO2. The freshly reduced catalyst was characterized by various electron microscopy techniques, such as elemental mapping, Z-contrast imaging, and electron energy-loss spectroscopy to understand the role of Ce on a microscopic scale. The high spatial resolution elemental mapping indicates that CeOx is located in close proximity of the palladium nanoparticles. High-resolution lattice images and energy-loss spectra obtained in the vicinity of the Pd particles show an anisotropic distribution of CeOx crystallites limited to the interface region between Pd and the substrate but not covering the surface of the Pd nanoparticles. Energy-loss near edge fine structure of Pd M edges reveals that the Pd nanoparticles are not oxidized.Fil: Moreno, M. S.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Wang, Feiya. National Institute for Nanotechnology; CanadáFil: Malac, M.. National Institute for Nanotechnology; CanadáFil: Kasama, T.. University of Cambridge; Reino UnidoFil: Gigola, Carlos Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Costilla, Ignacio Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Sánchez, M. D.. Universidad Nacional del Sur. Departamento de Física; ArgentinaAmerican Institute of Physics2009-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/42795Moreno, M. S.; Wang, Feiya; Malac, M.; Kasama, T.; Gigola, Carlos Eugenio; et al.; Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming; American Institute of Physics; Journal of Applied Physics; 105; 8; 4-2009; 1-60021-8979CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.3115405info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.3115405info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:28Zoai:ri.conicet.gov.ar:11336/42795instacron: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 09:53:29.12CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
title Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
spellingShingle Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
Moreno, M. S.
reforming
Pd
Ce
methane
title_short Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
title_full Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
title_fullStr Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
title_full_unstemmed Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
title_sort Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming
dc.creator.none.fl_str_mv Moreno, M. S.
Wang, Feiya
Malac, M.
Kasama, T.
Gigola, Carlos Eugenio
Costilla, Ignacio Oscar
Sánchez, M. D.
author Moreno, M. S.
author_facet Moreno, M. S.
Wang, Feiya
Malac, M.
Kasama, T.
Gigola, Carlos Eugenio
Costilla, Ignacio Oscar
Sánchez, M. D.
author_role author
author2 Wang, Feiya
Malac, M.
Kasama, T.
Gigola, Carlos Eugenio
Costilla, Ignacio Oscar
Sánchez, M. D.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv reforming
Pd
Ce
methane
topic reforming
Pd
Ce
methane
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have investigated the interaction between Pd and Ce in a 0.47 wt % CeOx–Pd 1 wt %/ -Al2O3 catalyst that is used in the reforming reaction of CH4 with CO2. The freshly reduced catalyst was characterized by various electron microscopy techniques, such as elemental mapping, Z-contrast imaging, and electron energy-loss spectroscopy to understand the role of Ce on a microscopic scale. The high spatial resolution elemental mapping indicates that CeOx is located in close proximity of the palladium nanoparticles. High-resolution lattice images and energy-loss spectra obtained in the vicinity of the Pd particles show an anisotropic distribution of CeOx crystallites limited to the interface region between Pd and the substrate but not covering the surface of the Pd nanoparticles. Energy-loss near edge fine structure of Pd M edges reveals that the Pd nanoparticles are not oxidized.
Fil: Moreno, M. S.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Wang, Feiya. National Institute for Nanotechnology; Canadá
Fil: Malac, M.. National Institute for Nanotechnology; Canadá
Fil: Kasama, T.. University of Cambridge; Reino Unido
Fil: Gigola, Carlos Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Costilla, Ignacio Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Fil: Sánchez, M. D.. Universidad Nacional del Sur. Departamento de Física; Argentina
description We have investigated the interaction between Pd and Ce in a 0.47 wt % CeOx–Pd 1 wt %/ -Al2O3 catalyst that is used in the reforming reaction of CH4 with CO2. The freshly reduced catalyst was characterized by various electron microscopy techniques, such as elemental mapping, Z-contrast imaging, and electron energy-loss spectroscopy to understand the role of Ce on a microscopic scale. The high spatial resolution elemental mapping indicates that CeOx is located in close proximity of the palladium nanoparticles. High-resolution lattice images and energy-loss spectra obtained in the vicinity of the Pd particles show an anisotropic distribution of CeOx crystallites limited to the interface region between Pd and the substrate but not covering the surface of the Pd nanoparticles. Energy-loss near edge fine structure of Pd M edges reveals that the Pd nanoparticles are not oxidized.
publishDate 2009
dc.date.none.fl_str_mv 2009-04
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/11336/42795
Moreno, M. S.; Wang, Feiya; Malac, M.; Kasama, T.; Gigola, Carlos Eugenio; et al.; Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming; American Institute of Physics; Journal of Applied Physics; 105; 8; 4-2009; 1-6
0021-8979
CONICET Digital
CONICET
url http://hdl.handle.net/11336/42795
identifier_str_mv Moreno, M. S.; Wang, Feiya; Malac, M.; Kasama, T.; Gigola, Carlos Eugenio; et al.; Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming; American Institute of Physics; Journal of Applied Physics; 105; 8; 4-2009; 1-6
0021-8979
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3115405
info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.3115405
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 American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
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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