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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/28008
Acceder
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network_name_str CONICET Digital (CONICET)
spelling 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 Técnicas2025-10-22T11:02:13Zoai: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:34982025-10-22 11:02:14.164CONICET 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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score 12.982451

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