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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/78616
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/78616
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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 Técnicas2025-10-22T12:19:14Zoai: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:34982025-10-22 12:19:15.118CONICET 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)
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 12.982451

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