Hydrogen sorption kinetics of La-Ni-Sn storage alloys
- Autores
- Blanco, Maria Valeria; Borzone, Emiliano Manque; Baruj, Alberto Leonardo; Meyer, Gabriel Omar
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this work we identify the limiting mechanism in the hydrogen absorption reaction of LaNi(5-x)Sn(x) alloys. For this purpose the absorption reaction was modelled as a process involving several partial reactions occurring sequentially. The analysis was performed by comparing the experimental data with the descriptions derived from four different kinetic expressions, each considering that there is only one mechanism governing the hydrogen absorption reaction while the other steps occur near equilibrium conditions. Kinetic curves corresponding to the binary alloy LaNi5 and to the substituted alloys LaNi(4.73)Sn(0.27) and LaNi(4.55)Sn(0.45) were measured using the Sieverts volumetric technique. Experiments were carried out over a temperature range from 300 K to 348 K and under different hydrogen pressures. In all cases, the best fit to the experimental data was achieved by applying an expression that assumes the limiting step of the overall reaction is the diffusion of hydrogen atoms through the hydride layer.
Fil: Blanco, Maria Valeria. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Cientifíca y Tecnológica; Argentina
Fil: Borzone, Emiliano Manque. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Cientifíca y Tecnológica; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Baruj, Alberto Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Meyer, Gabriel Omar. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Absorption Kinetics
Limiting Mechanism
Metal Hydride
Purification - 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:11336/28008
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Hydrogen sorption kinetics of La-Ni-Sn storage alloysBlanco, Maria ValeriaBorzone, Emiliano ManqueBaruj, Alberto LeonardoMeyer, Gabriel OmarAbsorption KineticsLimiting MechanismMetal HydridePurificationhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work we identify the limiting mechanism in the hydrogen absorption reaction of LaNi(5-x)Sn(x) alloys. For this purpose the absorption reaction was modelled as a process involving several partial reactions occurring sequentially. The analysis was performed by comparing the experimental data with the descriptions derived from four different kinetic expressions, each considering that there is only one mechanism governing the hydrogen absorption reaction while the other steps occur near equilibrium conditions. Kinetic curves corresponding to the binary alloy LaNi5 and to the substituted alloys LaNi(4.73)Sn(0.27) and LaNi(4.55)Sn(0.45) were measured using the Sieverts volumetric technique. Experiments were carried out over a temperature range from 300 K to 348 K and under different hydrogen pressures. In all cases, the best fit to the experimental data was achieved by applying an expression that assumes the limiting step of the overall reaction is the diffusion of hydrogen atoms through the hydride layer.Fil: Blanco, Maria Valeria. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Cientifíca y Tecnológica; ArgentinaFil: Borzone, Emiliano Manque. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Cientifíca y Tecnológica; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Baruj, Alberto Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Meyer, Gabriel Omar. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaPergamon-Elsevier Science Ltd.2014-02-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/28008Blanco, Maria Valeria; Borzone, Emiliano Manque; Baruj, Alberto Leonardo; Meyer, Gabriel Omar; Hydrogen sorption kinetics of La-Ni-Sn storage alloys; Pergamon-Elsevier Science Ltd.; International Journal of Hydrogen Energy; 39; 11; 21-2-2014; 5858-58670360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2014.01.125info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0360319914002055info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:09Zoai:ri.conicet.gov.ar:11336/28008instacron: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 09:34:10.006CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys |
title |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys |
spellingShingle |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys Blanco, Maria Valeria Absorption Kinetics Limiting Mechanism Metal Hydride Purification |
title_short |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys |
title_full |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys |
title_fullStr |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys |
title_full_unstemmed |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys |
title_sort |
Hydrogen sorption kinetics of La-Ni-Sn storage alloys |
dc.creator.none.fl_str_mv |
Blanco, Maria Valeria Borzone, Emiliano Manque Baruj, Alberto Leonardo Meyer, Gabriel Omar |
author |
Blanco, Maria Valeria |
author_facet |
Blanco, Maria Valeria Borzone, Emiliano Manque Baruj, Alberto Leonardo Meyer, Gabriel Omar |
author_role |
author |
author2 |
Borzone, Emiliano Manque Baruj, Alberto Leonardo Meyer, Gabriel Omar |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Absorption Kinetics Limiting Mechanism Metal Hydride Purification |
topic |
Absorption Kinetics Limiting Mechanism Metal Hydride Purification |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In this work we identify the limiting mechanism in the hydrogen absorption reaction of LaNi(5-x)Sn(x) alloys. For this purpose the absorption reaction was modelled as a process involving several partial reactions occurring sequentially. The analysis was performed by comparing the experimental data with the descriptions derived from four different kinetic expressions, each considering that there is only one mechanism governing the hydrogen absorption reaction while the other steps occur near equilibrium conditions. Kinetic curves corresponding to the binary alloy LaNi5 and to the substituted alloys LaNi(4.73)Sn(0.27) and LaNi(4.55)Sn(0.45) were measured using the Sieverts volumetric technique. Experiments were carried out over a temperature range from 300 K to 348 K and under different hydrogen pressures. In all cases, the best fit to the experimental data was achieved by applying an expression that assumes the limiting step of the overall reaction is the diffusion of hydrogen atoms through the hydride layer. Fil: Blanco, Maria Valeria. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Cientifíca y Tecnológica; Argentina Fil: Borzone, Emiliano Manque. Ministerio de Ciencia. Tecnología e Innovación Productiva. Agencia Nacional de Promoción Cientifíca y Tecnológica; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina Fil: Baruj, Alberto Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina Fil: Meyer, Gabriel Omar. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
In this work we identify the limiting mechanism in the hydrogen absorption reaction of LaNi(5-x)Sn(x) alloys. For this purpose the absorption reaction was modelled as a process involving several partial reactions occurring sequentially. The analysis was performed by comparing the experimental data with the descriptions derived from four different kinetic expressions, each considering that there is only one mechanism governing the hydrogen absorption reaction while the other steps occur near equilibrium conditions. Kinetic curves corresponding to the binary alloy LaNi5 and to the substituted alloys LaNi(4.73)Sn(0.27) and LaNi(4.55)Sn(0.45) were measured using the Sieverts volumetric technique. Experiments were carried out over a temperature range from 300 K to 348 K and under different hydrogen pressures. In all cases, the best fit to the experimental data was achieved by applying an expression that assumes the limiting step of the overall reaction is the diffusion of hydrogen atoms through the hydride layer. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02-21 |
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/11336/28008 Blanco, Maria Valeria; Borzone, Emiliano Manque; Baruj, Alberto Leonardo; Meyer, Gabriel Omar; Hydrogen sorption kinetics of La-Ni-Sn storage alloys; Pergamon-Elsevier Science Ltd.; International Journal of Hydrogen Energy; 39; 11; 21-2-2014; 5858-5867 0360-3199 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/28008 |
identifier_str_mv |
Blanco, Maria Valeria; Borzone, Emiliano Manque; Baruj, Alberto Leonardo; Meyer, Gabriel Omar; Hydrogen sorption kinetics of La-Ni-Sn storage alloys; Pergamon-Elsevier Science Ltd.; International Journal of Hydrogen Energy; 39; 11; 21-2-2014; 5858-5867 0360-3199 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.ijhydene.2014.01.125 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0360319914002055 |
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 application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd. |
publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd. |
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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13.070432 |