Different oxides used as diffusion barriers in composite hydrogen permeable membranes

Autores
Yepes, D.; Cornaglia, Laura Maria; Irusta, S.; Lombardo, Eduardo Agustin
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Composite Pd-Ag membranes supported on modified porous stainless steel substrates were prepared by sequential electroless plating. To improve the stability of the Pd-Ag alloy, two different intermediate layers of α-Fe2O3 and γ-Al2O3 oxides were employed as diffusion barriers. A new activation method was also investigated which consisted in the impregnation of a layer of Pd supported γ-Al2O3 to generate palladium seeds. The membranes were studied by XRD, Auger depth profiling, SEM and EPMA. They were tested in a gas permeation system to determine the hydrogen permeability and selectivity. The Pd-Ag/PSS membranes had a good thermal resistance. The membranes prepared with alumina diffusion barriers exhibited lower ideal selectivity than the Pd-Ag/α-Fe2O3/PSS. However, the former membranes had two times higher hydrogen permeability. The Auger depth profiles did not show the presence of Fe in the Pd-Ag film, indicating that the γ-Al 2O3 layer effectively blocked the intermetallic diffusion.
Fil: Yepes, D.. 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: Cornaglia, Laura Maria. 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: Irusta, S.. 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: Lombardo, Eduardo Agustin. 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
Alumina Layer
Diffusion Barrier
Pd-Ag Membrane
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:11336/74319
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/74319
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Different oxides used as diffusion barriers in composite hydrogen permeable membranesYepes, D.Cornaglia, Laura MariaIrusta, S.Lombardo, Eduardo AgustinAlumina LayerDiffusion BarrierPd-Ag Membranehttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2Composite Pd-Ag membranes supported on modified porous stainless steel substrates were prepared by sequential electroless plating. To improve the stability of the Pd-Ag alloy, two different intermediate layers of α-Fe2O3 and γ-Al2O3 oxides were employed as diffusion barriers. A new activation method was also investigated which consisted in the impregnation of a layer of Pd supported γ-Al2O3 to generate palladium seeds. The membranes were studied by XRD, Auger depth profiling, SEM and EPMA. They were tested in a gas permeation system to determine the hydrogen permeability and selectivity. The Pd-Ag/PSS membranes had a good thermal resistance. The membranes prepared with alumina diffusion barriers exhibited lower ideal selectivity than the Pd-Ag/α-Fe2O3/PSS. However, the former membranes had two times higher hydrogen permeability. The Auger depth profiles did not show the presence of Fe in the Pd-Ag film, indicating that the γ-Al 2O3 layer effectively blocked the intermetallic diffusion.Fil: Yepes, D.. 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: Cornaglia, Laura Maria. 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: Irusta, S.. 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: Lombardo, Eduardo Agustin. 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"; ArgentinaElsevier Science2006-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74319Yepes, D.; Cornaglia, Laura Maria; Irusta, S.; Lombardo, Eduardo Agustin; Different oxides used as diffusion barriers in composite hydrogen permeable membranes; Elsevier Science; Journal of Membrane Science; 274; 1-2; 4-2006; 92-1010376-7388CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.memsci.2005.08.003info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S037673880500596Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:20Zoai:ri.conicet.gov.ar:11336/74319instacron: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 09:37:20.233CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Different oxides used as diffusion barriers in composite hydrogen permeable membranes
title Different oxides used as diffusion barriers in composite hydrogen permeable membranes
spellingShingle Different oxides used as diffusion barriers in composite hydrogen permeable membranes
Yepes, D.
Alumina Layer
Diffusion Barrier
Pd-Ag Membrane
title_short Different oxides used as diffusion barriers in composite hydrogen permeable membranes
title_full Different oxides used as diffusion barriers in composite hydrogen permeable membranes
title_fullStr Different oxides used as diffusion barriers in composite hydrogen permeable membranes
title_full_unstemmed Different oxides used as diffusion barriers in composite hydrogen permeable membranes
title_sort Different oxides used as diffusion barriers in composite hydrogen permeable membranes
dc.creator.none.fl_str_mv Yepes, D.
Cornaglia, Laura Maria
Irusta, S.
Lombardo, Eduardo Agustin
author Yepes, D.
author_facet Yepes, D.
Cornaglia, Laura Maria
Irusta, S.
Lombardo, Eduardo Agustin
author_role author
author2 Cornaglia, Laura Maria
Irusta, S.
Lombardo, Eduardo Agustin
author2_role author
author
author
dc.subject.none.fl_str_mv Alumina Layer
Diffusion Barrier
Pd-Ag Membrane
topic Alumina Layer
Diffusion Barrier
Pd-Ag Membrane
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Composite Pd-Ag membranes supported on modified porous stainless steel substrates were prepared by sequential electroless plating. To improve the stability of the Pd-Ag alloy, two different intermediate layers of α-Fe2O3 and γ-Al2O3 oxides were employed as diffusion barriers. A new activation method was also investigated which consisted in the impregnation of a layer of Pd supported γ-Al2O3 to generate palladium seeds. The membranes were studied by XRD, Auger depth profiling, SEM and EPMA. They were tested in a gas permeation system to determine the hydrogen permeability and selectivity. The Pd-Ag/PSS membranes had a good thermal resistance. The membranes prepared with alumina diffusion barriers exhibited lower ideal selectivity than the Pd-Ag/α-Fe2O3/PSS. However, the former membranes had two times higher hydrogen permeability. The Auger depth profiles did not show the presence of Fe in the Pd-Ag film, indicating that the γ-Al 2O3 layer effectively blocked the intermetallic diffusion.
Fil: Yepes, D.. 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: Cornaglia, Laura Maria. 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: Irusta, S.. 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: Lombardo, Eduardo Agustin. 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 Composite Pd-Ag membranes supported on modified porous stainless steel substrates were prepared by sequential electroless plating. To improve the stability of the Pd-Ag alloy, two different intermediate layers of α-Fe2O3 and γ-Al2O3 oxides were employed as diffusion barriers. A new activation method was also investigated which consisted in the impregnation of a layer of Pd supported γ-Al2O3 to generate palladium seeds. The membranes were studied by XRD, Auger depth profiling, SEM and EPMA. They were tested in a gas permeation system to determine the hydrogen permeability and selectivity. The Pd-Ag/PSS membranes had a good thermal resistance. The membranes prepared with alumina diffusion barriers exhibited lower ideal selectivity than the Pd-Ag/α-Fe2O3/PSS. However, the former membranes had two times higher hydrogen permeability. The Auger depth profiles did not show the presence of Fe in the Pd-Ag film, indicating that the γ-Al 2O3 layer effectively blocked the intermetallic diffusion.
publishDate 2006
dc.date.none.fl_str_mv 2006-04
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/11336/74319
Yepes, D.; Cornaglia, Laura Maria; Irusta, S.; Lombardo, Eduardo Agustin; Different oxides used as diffusion barriers in composite hydrogen permeable membranes; Elsevier Science; Journal of Membrane Science; 274; 1-2; 4-2006; 92-101
0376-7388
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74319
identifier_str_mv Yepes, D.; Cornaglia, Laura Maria; Irusta, S.; Lombardo, Eduardo Agustin; Different oxides used as diffusion barriers in composite hydrogen permeable membranes; Elsevier Science; Journal of Membrane Science; 274; 1-2; 4-2006; 92-101
0376-7388
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.memsci.2005.08.003
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S037673880500596X
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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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