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
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/74319
Ver los metadatos del registro completo
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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 Técnicas2025-10-22T11:05:28Zoai: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:34982025-10-22 11:05:28.51CONICET 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 |
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2006-04 |
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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 |
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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 |
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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 |
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eng |
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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 |
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Elsevier Science |
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Elsevier Science |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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