New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys

Autores
Díaz, Verónica; Humana, Rita Mariangeles; Teliz, Erika; Ruiz, Fabricio Carlos; Castro, Elida Beatriz; Faccio Sgiorovello, Ricardo Juan; Zinola, Fernando
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
During the present investigation, it was observed that the inclusion of molybdenum in LaNi3.6Co0.7Mn(0.4-x)Al0.3Mox AB5-type alloys produced new responses in the electrochemical impedance spectroscopy (EIS) when they are used as an anode active material for Ni-MH batteries. The aim of this work is to study, using electrochemical impedance spectroscopy, the influence of molybdenum, on the performance of the electrode. EIS spectra were adjusted in terms of a physicochemical model of the dynamic response of the system. X ray diffraction and hydrogen diffusion coefficient calculated from discharges curves supported EIS model outcomes. The replacement of manganese by molybdenum, in a 2% w/w concentration level (AB5M1), has a positive effect for applications as energy storage material. In this sense, this alloy exhibits the lowest value of charge transfer resistance obtained from the analysis of impedance spectra. Moreover, changes in the (i0. aa) parameter, that is, the exchange current density and active area, respectively display a maximum value. The larger grade of fracture observed in AB5M1 can be due to the higher material´s fragility as a consequence of molybdenum incorporation. XRD analysis on the three alloys confirms this hypothesis as shown in the paper.
Fil: Díaz, Verónica. Universidad de la República; Uruguay
Fil: Humana, Rita Mariangeles. 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. Universidad Nacional de Catamarca. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Teliz, Erika. Universidad de la República; Uruguay
Fil: Ruiz, Fabricio Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; 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: Faccio Sgiorovello, Ricardo Juan. Universidad de la República; Uruguay
Fil: Zinola, Fernando. Universidad de la República; Uruguay
Materia
Metal Hydrides
Hydrogen
Diffraction Patterns
Molybdenum
Batteries
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:11336/41675
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/41675
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloysDíaz, VerónicaHumana, Rita MariangelesTeliz, ErikaRuiz, Fabricio CarlosCastro, Elida BeatrizFaccio Sgiorovello, Ricardo JuanZinola, FernandoMetal HydridesHydrogenDiffraction PatternsMolybdenumBatterieshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1During the present investigation, it was observed that the inclusion of molybdenum in LaNi3.6Co0.7Mn(0.4-x)Al0.3Mox AB5-type alloys produced new responses in the electrochemical impedance spectroscopy (EIS) when they are used as an anode active material for Ni-MH batteries. The aim of this work is to study, using electrochemical impedance spectroscopy, the influence of molybdenum, on the performance of the electrode. EIS spectra were adjusted in terms of a physicochemical model of the dynamic response of the system. X ray diffraction and hydrogen diffusion coefficient calculated from discharges curves supported EIS model outcomes. The replacement of manganese by molybdenum, in a 2% w/w concentration level (AB5M1), has a positive effect for applications as energy storage material. In this sense, this alloy exhibits the lowest value of charge transfer resistance obtained from the analysis of impedance spectra. Moreover, changes in the (i0. aa) parameter, that is, the exchange current density and active area, respectively display a maximum value. The larger grade of fracture observed in AB5M1 can be due to the higher material´s fragility as a consequence of molybdenum incorporation. XRD analysis on the three alloys confirms this hypothesis as shown in the paper.Fil: Díaz, Verónica. Universidad de la República; UruguayFil: Humana, Rita Mariangeles. 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. Universidad Nacional de Catamarca. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Teliz, Erika. Universidad de la República; UruguayFil: Ruiz, Fabricio Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; 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: Faccio Sgiorovello, Ricardo Juan. Universidad de la República; UruguayFil: Zinola, Fernando. Universidad de la República; UruguayPergamon-Elsevier Science Ltd2015-04info: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/11336/41675Díaz, Verónica; Humana, Rita Mariangeles; Teliz, Erika; Ruiz, Fabricio Carlos; Castro, Elida Beatriz; et al.; New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 40; 4-2015; 6639-66460360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2015.03.112info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0360319915007569info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:34:47Zoai:ri.conicet.gov.ar:11336/41675instacron: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 10:34:47.5CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
title New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
spellingShingle New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
Díaz, Verónica
Metal Hydrides
Hydrogen
Diffraction Patterns
Molybdenum
Batteries
title_short New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
title_full New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
title_fullStr New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
title_full_unstemmed New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
title_sort New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys
dc.creator.none.fl_str_mv Díaz, Verónica
Humana, Rita Mariangeles
Teliz, Erika
Ruiz, Fabricio Carlos
Castro, Elida Beatriz
Faccio Sgiorovello, Ricardo Juan
Zinola, Fernando
author Díaz, Verónica
author_facet Díaz, Verónica
Humana, Rita Mariangeles
Teliz, Erika
Ruiz, Fabricio Carlos
Castro, Elida Beatriz
Faccio Sgiorovello, Ricardo Juan
Zinola, Fernando
author_role author
author2 Humana, Rita Mariangeles
Teliz, Erika
Ruiz, Fabricio Carlos
Castro, Elida Beatriz
Faccio Sgiorovello, Ricardo Juan
Zinola, Fernando
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Metal Hydrides
Hydrogen
Diffraction Patterns
Molybdenum
Batteries
topic Metal Hydrides
Hydrogen
Diffraction Patterns
Molybdenum
Batteries
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv During the present investigation, it was observed that the inclusion of molybdenum in LaNi3.6Co0.7Mn(0.4-x)Al0.3Mox AB5-type alloys produced new responses in the electrochemical impedance spectroscopy (EIS) when they are used as an anode active material for Ni-MH batteries. The aim of this work is to study, using electrochemical impedance spectroscopy, the influence of molybdenum, on the performance of the electrode. EIS spectra were adjusted in terms of a physicochemical model of the dynamic response of the system. X ray diffraction and hydrogen diffusion coefficient calculated from discharges curves supported EIS model outcomes. The replacement of manganese by molybdenum, in a 2% w/w concentration level (AB5M1), has a positive effect for applications as energy storage material. In this sense, this alloy exhibits the lowest value of charge transfer resistance obtained from the analysis of impedance spectra. Moreover, changes in the (i0. aa) parameter, that is, the exchange current density and active area, respectively display a maximum value. The larger grade of fracture observed in AB5M1 can be due to the higher material´s fragility as a consequence of molybdenum incorporation. XRD analysis on the three alloys confirms this hypothesis as shown in the paper.
Fil: Díaz, Verónica. Universidad de la República; Uruguay
Fil: Humana, Rita Mariangeles. 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. Universidad Nacional de Catamarca. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Teliz, Erika. Universidad de la República; Uruguay
Fil: Ruiz, Fabricio Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; 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: Faccio Sgiorovello, Ricardo Juan. Universidad de la República; Uruguay
Fil: Zinola, Fernando. Universidad de la República; Uruguay
description During the present investigation, it was observed that the inclusion of molybdenum in LaNi3.6Co0.7Mn(0.4-x)Al0.3Mox AB5-type alloys produced new responses in the electrochemical impedance spectroscopy (EIS) when they are used as an anode active material for Ni-MH batteries. The aim of this work is to study, using electrochemical impedance spectroscopy, the influence of molybdenum, on the performance of the electrode. EIS spectra were adjusted in terms of a physicochemical model of the dynamic response of the system. X ray diffraction and hydrogen diffusion coefficient calculated from discharges curves supported EIS model outcomes. The replacement of manganese by molybdenum, in a 2% w/w concentration level (AB5M1), has a positive effect for applications as energy storage material. In this sense, this alloy exhibits the lowest value of charge transfer resistance obtained from the analysis of impedance spectra. Moreover, changes in the (i0. aa) parameter, that is, the exchange current density and active area, respectively display a maximum value. The larger grade of fracture observed in AB5M1 can be due to the higher material´s fragility as a consequence of molybdenum incorporation. XRD analysis on the three alloys confirms this hypothesis as shown in the paper.
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/11336/41675
Díaz, Verónica; Humana, Rita Mariangeles; Teliz, Erika; Ruiz, Fabricio Carlos; Castro, Elida Beatriz; et al.; New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 40; 4-2015; 6639-6646
0360-3199
CONICET Digital
CONICET
url http://hdl.handle.net/11336/41675
identifier_str_mv Díaz, Verónica; Humana, Rita Mariangeles; Teliz, Erika; Ruiz, Fabricio Carlos; Castro, Elida Beatriz; et al.; New response in electrochemical impedance spectroscopy due to the presence of molybdenum on AB5-type alloys; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 40; 4-2015; 6639-6646
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.2015.03.112
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0360319915007569
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 13.070432

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