Study of the different ZrxNiy phases of Zr-based AB2 materials

Autores
Ruiz, Fabricio Carlos; Castro, Elida Beatriz; Peretti, H.A.; Visintin, Arnaldo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Hydride-forming alloys are used as components of the negative electrode of nickel-metal hydride (NiMH) batteries. In previous works, the study of Zr-based AB2-type alloys indicated that the material without heat treatment (annealing) had better electrochemical characteristics than the annealed one. The effect was attributed to the presence of  secondary phases ZrxNiy formed during the solidification of the alloy button obtained by  arc melting, and to the fact that these phases diminished their concentration or disappeared upon annealing. The main secondary phases formed by microsegregation are Zr7Ni10, Zr9Ni11 and Zr8Ni21.  In order to explain the effect of each one of these micro-segregations, alloys of the abovementioned composition were prepared by arc furnace and studied separately using powder mixtures of each ZrxNiy phase and annealed ZrCrNi alloy. The electrochemical impedance data analysis of each ZrxNiy alloy, using a model developed  in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy. this parameter determinant of the charge/discharge performance of the alloy. in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy.
Fil: Ruiz, Fabricio Carlos. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Castro, Elida Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Peretti, H.A.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Visintin, Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Materia
Hydrogen storage;
Catalytic phase
Hydrogen
Hydride
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:11336/281020
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Study of the different ZrxNiy phases of Zr-based AB2 materialsRuiz, Fabricio CarlosCastro, Elida BeatrizPeretti, H.A.Visintin, ArnaldoHydrogen storage;Catalytic phaseHydrogenHydridehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Hydride-forming alloys are used as components of the negative electrode of nickel-metal hydride (NiMH) batteries. In previous works, the study of Zr-based AB2-type alloys indicated that the material without heat treatment (annealing) had better electrochemical characteristics than the annealed one. The effect was attributed to the presence of  secondary phases ZrxNiy formed during the solidification of the alloy button obtained by  arc melting, and to the fact that these phases diminished their concentration or disappeared upon annealing. The main secondary phases formed by microsegregation are Zr7Ni10, Zr9Ni11 and Zr8Ni21.  In order to explain the effect of each one of these micro-segregations, alloys of the abovementioned composition were prepared by arc furnace and studied separately using powder mixtures of each ZrxNiy phase and annealed ZrCrNi alloy. The electrochemical impedance data analysis of each ZrxNiy alloy, using a model developed  in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy. this parameter determinant of the charge/discharge performance of the alloy. in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy.Fil: Ruiz, Fabricio Carlos. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Castro, Elida Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Peretti, H.A.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Visintin, Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaPergamon-Elsevier Science Ltd2010-10info: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/11336/281020Ruiz, Fabricio Carlos; Castro, Elida Beatriz; Peretti, H.A.; Visintin, Arnaldo; Study of the different ZrxNiy phases of Zr-based AB2 materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 35; 18; 10-2010; 9879-98870360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0360319909015730info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2009.10.004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:25:17Zoai:ri.conicet.gov.ar:11336/281020instacron: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:34982026-02-26 10:25:17.262CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Study of the different ZrxNiy phases of Zr-based AB2 materials
title Study of the different ZrxNiy phases of Zr-based AB2 materials
spellingShingle Study of the different ZrxNiy phases of Zr-based AB2 materials
Ruiz, Fabricio Carlos
Hydrogen storage;
Catalytic phase
Hydrogen
Hydride
title_short Study of the different ZrxNiy phases of Zr-based AB2 materials
title_full Study of the different ZrxNiy phases of Zr-based AB2 materials
title_fullStr Study of the different ZrxNiy phases of Zr-based AB2 materials
title_full_unstemmed Study of the different ZrxNiy phases of Zr-based AB2 materials
title_sort Study of the different ZrxNiy phases of Zr-based AB2 materials
dc.creator.none.fl_str_mv Ruiz, Fabricio Carlos
Castro, Elida Beatriz
Peretti, H.A.
Visintin, Arnaldo
author Ruiz, Fabricio Carlos
author_facet Ruiz, Fabricio Carlos
Castro, Elida Beatriz
Peretti, H.A.
Visintin, Arnaldo
author_role author
author2 Castro, Elida Beatriz
Peretti, H.A.
Visintin, Arnaldo
author2_role author
author
author
dc.subject.none.fl_str_mv Hydrogen storage;
Catalytic phase
Hydrogen
Hydride
topic Hydrogen storage;
Catalytic phase
Hydrogen
Hydride
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Hydride-forming alloys are used as components of the negative electrode of nickel-metal hydride (NiMH) batteries. In previous works, the study of Zr-based AB2-type alloys indicated that the material without heat treatment (annealing) had better electrochemical characteristics than the annealed one. The effect was attributed to the presence of  secondary phases ZrxNiy formed during the solidification of the alloy button obtained by  arc melting, and to the fact that these phases diminished their concentration or disappeared upon annealing. The main secondary phases formed by microsegregation are Zr7Ni10, Zr9Ni11 and Zr8Ni21.  In order to explain the effect of each one of these micro-segregations, alloys of the abovementioned composition were prepared by arc furnace and studied separately using powder mixtures of each ZrxNiy phase and annealed ZrCrNi alloy. The electrochemical impedance data analysis of each ZrxNiy alloy, using a model developed  in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy. this parameter determinant of the charge/discharge performance of the alloy. in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy.
Fil: Ruiz, Fabricio Carlos. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Castro, Elida Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Peretti, H.A.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Visintin, Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
description Hydride-forming alloys are used as components of the negative electrode of nickel-metal hydride (NiMH) batteries. In previous works, the study of Zr-based AB2-type alloys indicated that the material without heat treatment (annealing) had better electrochemical characteristics than the annealed one. The effect was attributed to the presence of  secondary phases ZrxNiy formed during the solidification of the alloy button obtained by  arc melting, and to the fact that these phases diminished their concentration or disappeared upon annealing. The main secondary phases formed by microsegregation are Zr7Ni10, Zr9Ni11 and Zr8Ni21.  In order to explain the effect of each one of these micro-segregations, alloys of the abovementioned composition were prepared by arc furnace and studied separately using powder mixtures of each ZrxNiy phase and annealed ZrCrNi alloy. The electrochemical impedance data analysis of each ZrxNiy alloy, using a model developed  in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy. this parameter determinant of the charge/discharge performance of the alloy. in our laboratory, allowed the identification of structural, physicochemical and kinetic parameters which determine the performance of each material. Based on this analysis it may be concluded that Zr8Ni21 alloy has the greatest hydrogen diffusion coefficient, being  this parameter determinant of the charge/discharge performance of the alloy.
publishDate 2010
dc.date.none.fl_str_mv 2010-10
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/11336/281020
Ruiz, Fabricio Carlos; Castro, Elida Beatriz; Peretti, H.A.; Visintin, Arnaldo; Study of the different ZrxNiy phases of Zr-based AB2 materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 35; 18; 10-2010; 9879-9887
0360-3199
CONICET Digital
CONICET
url http://hdl.handle.net/11336/281020
identifier_str_mv Ruiz, Fabricio Carlos; Castro, Elida Beatriz; Peretti, H.A.; Visintin, Arnaldo; Study of the different ZrxNiy phases of Zr-based AB2 materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 35; 18; 10-2010; 9879-9887
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/url/https://www.sciencedirect.com/science/article/abs/pii/S0360319909015730
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2009.10.004
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 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 13.176822

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