PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S
- Autores
- Tarditi, Ana Maria; Imhoff, Carolina Guadalupe; Braun, Fernando; Miller, James B.; Gellman, Andrew J.; Cornaglia, Laura Maria
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- PdCuAu ternary alloy membranes with different component compositions were synthesized by sequential electroless deposition of components onto porous stainless steel substrates. The ternary with the highest Au content, Pd 69 Cu 14 Au 17 , exhibited the highest hydrogen permeation flux, comparable to that of a Pd 91 Au 9 membrane. Upon exposure to 100ppm H 2 S/H 2 at 673 K for 24h, all PdCuAu membranes experienced flux reductions of ~55%, followed by recovery to ~80% of the initial hydrogen flux upon reintroduction of pure hydrogen at 400°C. Complete flux recovery after H 2 S exposure required hydrogen treatment at 500°C. X-ray diffraction (XRD) analysis of the H 2 S-exposed PdCuAu membranes revealed fcc alloy structure with no evidence of bulk sulfide formation. In agreement with the XRD results, sulfur was not detected in the bulk of H 2 S-exposed samples by energy dispersive spectroscopy (EDS). However, analysis of H 2 S-exposed PdCuAu alloys by X-ray photoelectron spectroscopy (XPS) depth profiling revealed low, but measureable, amounts of sulfur in the near-surface region, about 10nm in depth. The depth profiles of samples after hydrogen recovery treatment showed significantly reduced sulfur content. These results indicate that H 2 S exposure causes flux loss in PdCuAu alloys through a surface-poisoning mechanism, and that the surface sulfide can be removed-and flux recovered-by high temperature treatment in hydrogen.
Fil: Tarditi, Ana 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: Imhoff, Carolina Guadalupe. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Braun, Fernando. 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: Miller, James B.. University of Carnegie Mellon; Estados Unidos
Fil: Gellman, Andrew J.. University of Carnegie Mellon; Estados Unidos
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 - Materia
-
Hydrogen Separation
Pdcuau Ternary Alloy
Sulfur Tolerance - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/78616
Ver los metadatos del registro completo
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PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2STarditi, Ana MariaImhoff, Carolina GuadalupeBraun, FernandoMiller, James B.Gellman, Andrew J.Cornaglia, Laura MariaHydrogen SeparationPdcuau Ternary AlloySulfur Tolerancehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2PdCuAu ternary alloy membranes with different component compositions were synthesized by sequential electroless deposition of components onto porous stainless steel substrates. The ternary with the highest Au content, Pd 69 Cu 14 Au 17 , exhibited the highest hydrogen permeation flux, comparable to that of a Pd 91 Au 9 membrane. Upon exposure to 100ppm H 2 S/H 2 at 673 K for 24h, all PdCuAu membranes experienced flux reductions of ~55%, followed by recovery to ~80% of the initial hydrogen flux upon reintroduction of pure hydrogen at 400°C. Complete flux recovery after H 2 S exposure required hydrogen treatment at 500°C. X-ray diffraction (XRD) analysis of the H 2 S-exposed PdCuAu membranes revealed fcc alloy structure with no evidence of bulk sulfide formation. In agreement with the XRD results, sulfur was not detected in the bulk of H 2 S-exposed samples by energy dispersive spectroscopy (EDS). However, analysis of H 2 S-exposed PdCuAu alloys by X-ray photoelectron spectroscopy (XPS) depth profiling revealed low, but measureable, amounts of sulfur in the near-surface region, about 10nm in depth. The depth profiles of samples after hydrogen recovery treatment showed significantly reduced sulfur content. These results indicate that H 2 S exposure causes flux loss in PdCuAu alloys through a surface-poisoning mechanism, and that the surface sulfide can be removed-and flux recovered-by high temperature treatment in hydrogen.Fil: Tarditi, Ana 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: Imhoff, Carolina Guadalupe. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Braun, Fernando. 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: Miller, James B.. University of Carnegie Mellon; Estados UnidosFil: Gellman, Andrew J.. University of Carnegie Mellon; Estados UnidosFil: 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"; ArgentinaElsevier Science2015-04info: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/11336/78616Tarditi, Ana Maria; Imhoff, Carolina Guadalupe; Braun, Fernando; Miller, James B.; Gellman, Andrew J.; et al.; PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S; Elsevier Science; Journal of Membrane Science; 479; 4-2015; 246-2550376-7388CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.memsci.2014.12.030info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:54Zoai:ri.conicet.gov.ar:11336/78616instacron: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 10:45:55.004CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S |
title |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S |
spellingShingle |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S Tarditi, Ana Maria Hydrogen Separation Pdcuau Ternary Alloy Sulfur Tolerance |
title_short |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S |
title_full |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S |
title_fullStr |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S |
title_full_unstemmed |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S |
title_sort |
PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S |
dc.creator.none.fl_str_mv |
Tarditi, Ana Maria Imhoff, Carolina Guadalupe Braun, Fernando Miller, James B. Gellman, Andrew J. Cornaglia, Laura Maria |
author |
Tarditi, Ana Maria |
author_facet |
Tarditi, Ana Maria Imhoff, Carolina Guadalupe Braun, Fernando Miller, James B. Gellman, Andrew J. Cornaglia, Laura Maria |
author_role |
author |
author2 |
Imhoff, Carolina Guadalupe Braun, Fernando Miller, James B. Gellman, Andrew J. Cornaglia, Laura Maria |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Hydrogen Separation Pdcuau Ternary Alloy Sulfur Tolerance |
topic |
Hydrogen Separation Pdcuau Ternary Alloy Sulfur Tolerance |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
PdCuAu ternary alloy membranes with different component compositions were synthesized by sequential electroless deposition of components onto porous stainless steel substrates. The ternary with the highest Au content, Pd 69 Cu 14 Au 17 , exhibited the highest hydrogen permeation flux, comparable to that of a Pd 91 Au 9 membrane. Upon exposure to 100ppm H 2 S/H 2 at 673 K for 24h, all PdCuAu membranes experienced flux reductions of ~55%, followed by recovery to ~80% of the initial hydrogen flux upon reintroduction of pure hydrogen at 400°C. Complete flux recovery after H 2 S exposure required hydrogen treatment at 500°C. X-ray diffraction (XRD) analysis of the H 2 S-exposed PdCuAu membranes revealed fcc alloy structure with no evidence of bulk sulfide formation. In agreement with the XRD results, sulfur was not detected in the bulk of H 2 S-exposed samples by energy dispersive spectroscopy (EDS). However, analysis of H 2 S-exposed PdCuAu alloys by X-ray photoelectron spectroscopy (XPS) depth profiling revealed low, but measureable, amounts of sulfur in the near-surface region, about 10nm in depth. The depth profiles of samples after hydrogen recovery treatment showed significantly reduced sulfur content. These results indicate that H 2 S exposure causes flux loss in PdCuAu alloys through a surface-poisoning mechanism, and that the surface sulfide can be removed-and flux recovered-by high temperature treatment in hydrogen. Fil: Tarditi, Ana 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: Imhoff, Carolina Guadalupe. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina Fil: Braun, Fernando. 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: Miller, James B.. University of Carnegie Mellon; Estados Unidos Fil: Gellman, Andrew J.. University of Carnegie Mellon; Estados Unidos 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 |
description |
PdCuAu ternary alloy membranes with different component compositions were synthesized by sequential electroless deposition of components onto porous stainless steel substrates. The ternary with the highest Au content, Pd 69 Cu 14 Au 17 , exhibited the highest hydrogen permeation flux, comparable to that of a Pd 91 Au 9 membrane. Upon exposure to 100ppm H 2 S/H 2 at 673 K for 24h, all PdCuAu membranes experienced flux reductions of ~55%, followed by recovery to ~80% of the initial hydrogen flux upon reintroduction of pure hydrogen at 400°C. Complete flux recovery after H 2 S exposure required hydrogen treatment at 500°C. X-ray diffraction (XRD) analysis of the H 2 S-exposed PdCuAu membranes revealed fcc alloy structure with no evidence of bulk sulfide formation. In agreement with the XRD results, sulfur was not detected in the bulk of H 2 S-exposed samples by energy dispersive spectroscopy (EDS). However, analysis of H 2 S-exposed PdCuAu alloys by X-ray photoelectron spectroscopy (XPS) depth profiling revealed low, but measureable, amounts of sulfur in the near-surface region, about 10nm in depth. The depth profiles of samples after hydrogen recovery treatment showed significantly reduced sulfur content. These results indicate that H 2 S exposure causes flux loss in PdCuAu alloys through a surface-poisoning mechanism, and that the surface sulfide can be removed-and flux recovered-by high temperature treatment in hydrogen. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-04 |
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/11336/78616 Tarditi, Ana Maria; Imhoff, Carolina Guadalupe; Braun, Fernando; Miller, James B.; Gellman, Andrew J.; et al.; PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S; Elsevier Science; Journal of Membrane Science; 479; 4-2015; 246-255 0376-7388 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/78616 |
identifier_str_mv |
Tarditi, Ana Maria; Imhoff, Carolina Guadalupe; Braun, Fernando; Miller, James B.; Gellman, Andrew J.; et al.; PdCuAu ternary alloy membranes: Hydrogen permeation properties in the presence of H2S; Elsevier Science; Journal of Membrane Science; 479; 4-2015; 246-255 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.2014.12.030 |
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 |
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) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |