The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electr...

Autores
Real, Silvia Graciela; Vilche, Jorge Roberto; Arvia, Alejandro Jorge
Año de publicación
1980
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Electrochemical data derived from different simple and complex potentiodynamic techniques for the Ni/0.5 N H2SO4 interface furnish a new insight about the activation and initial stage passivation of nickel. The anodic dissolution of nickel involves a metal surface which is either partially or completely covered by species such as NiOH, [NiOH.Ni(OH)2] or [Ni(OH)2.NiOOH]. The chemical dissolution of the various species in the acid electrolyte occurs at different rates. The relative dissolution rates can be estimated from the data derived from the complex triangular potential perturbations. The change of the E/I profile during cycling is explained through a complex reaction sequence which is in agreement with recently postulated reaction schemes and reported optical data.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Química
potentiodynamic
Electrodos
Electroquímica
Níquel
Metal
Acido
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/80613
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/80613
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode processReal, Silvia GracielaVilche, Jorge RobertoArvia, Alejandro JorgeCiencias ExactasQuímicapotentiodynamicElectrodosElectroquímicaNíquelMetalAcidoElectrochemical data derived from different simple and complex potentiodynamic techniques for the Ni/0.5 N H<sub>2</sub>SO<sub>4</sub> interface furnish a new insight about the activation and initial stage passivation of nickel. The anodic dissolution of nickel involves a metal surface which is either partially or completely covered by species such as NiOH, [NiOH.Ni(OH)<sub>2</sub>] or [Ni(OH)<sub>2</sub>.NiOOH]. The chemical dissolution of the various species in the acid electrolyte occurs at different rates. The relative dissolution rates can be estimated from the data derived from the complex triangular potential perturbations. The change of the <i>E/I</i> profile during cycling is explained through a complex reaction sequence which is in agreement with recently postulated reaction schemes and reported optical data.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)Facultad de Ciencias Exactas1980info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf563-586http://sedici.unlp.edu.ar/handle/10915/80613enginfo:eu-repo/semantics/altIdentifier/issn/0010-938Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/0010-938X(80)90072-4info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:47:08Zoai:sedici.unlp.edu.ar:10915/80613Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:47:08.45SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
title The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
spellingShingle The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
Real, Silvia Graciela
Ciencias Exactas
Química
potentiodynamic
Electrodos
Electroquímica
Níquel
Metal
Acido
title_short The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
title_full The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
title_fullStr The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
title_full_unstemmed The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
title_sort The characteristics of the potentiodynamic potential/current profiles obtained with the Ni/0.5N H<sub>2</sub>SO<sub>4</sub> interface. A contribution to the mechanism of the electrode process
dc.creator.none.fl_str_mv Real, Silvia Graciela
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author Real, Silvia Graciela
author_facet Real, Silvia Graciela
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author_role author
author2 Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
potentiodynamic
Electrodos
Electroquímica
Níquel
Metal
Acido
topic Ciencias Exactas
Química
potentiodynamic
Electrodos
Electroquímica
Níquel
Metal
Acido
dc.description.none.fl_txt_mv Electrochemical data derived from different simple and complex potentiodynamic techniques for the Ni/0.5 N H<sub>2</sub>SO<sub>4</sub> interface furnish a new insight about the activation and initial stage passivation of nickel. The anodic dissolution of nickel involves a metal surface which is either partially or completely covered by species such as NiOH, [NiOH.Ni(OH)<sub>2</sub>] or [Ni(OH)<sub>2</sub>.NiOOH]. The chemical dissolution of the various species in the acid electrolyte occurs at different rates. The relative dissolution rates can be estimated from the data derived from the complex triangular potential perturbations. The change of the <i>E/I</i> profile during cycling is explained through a complex reaction sequence which is in agreement with recently postulated reaction schemes and reported optical data.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA)
Facultad de Ciencias Exactas
description Electrochemical data derived from different simple and complex potentiodynamic techniques for the Ni/0.5 N H<sub>2</sub>SO<sub>4</sub> interface furnish a new insight about the activation and initial stage passivation of nickel. The anodic dissolution of nickel involves a metal surface which is either partially or completely covered by species such as NiOH, [NiOH.Ni(OH)<sub>2</sub>] or [Ni(OH)<sub>2</sub>.NiOOH]. The chemical dissolution of the various species in the acid electrolyte occurs at different rates. The relative dissolution rates can be estimated from the data derived from the complex triangular potential perturbations. The change of the <i>E/I</i> profile during cycling is explained through a complex reaction sequence which is in agreement with recently postulated reaction schemes and reported optical data.
publishDate 1980
dc.date.none.fl_str_mv 1980
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/80613
url http://sedici.unlp.edu.ar/handle/10915/80613
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0010-938X
info:eu-repo/semantics/altIdentifier/doi/10.1016/0010-938X(80)90072-4
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
563-586
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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