Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions
- Autores
- Vilche, Jorge Roberto; Arvia, Alejandro Jorge
- Año de publicación
- 1978
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The kinetics of the Ni electrode in acid solutions with a high sulphate and nickel ion concentration has been investigated in the range of 25–75°C. The active dissolution and the passive regions and the active-passive transition phenomena have been studied employing different potential perturbation techniques using both still and stirred solutions. Two electrochemical processes are competing within the prepassive film potential region, namely, the active Ni dissolution to Ni(II) ions and the Ni(OH)2 film formation. Nickel passivation is explained by reaction pathways involving successive electrochemical and chemical steps implying the occurrence of hydroxo- and oxo-species as reactions intermediates. The advanced mechanism is based upon a positively charged Ni surface structure and attributes the onset of the complete passivity to a particular surface oxide species.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Química
Cinética química
Níquel
Electrodos
Electroquímica
Ácidos
Iones - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/82561
Ver los metadatos del registro completo
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Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ionsVilche, Jorge RobertoArvia, Alejandro JorgeCiencias ExactasQuímicaCinética químicaNíquelElectrodosElectroquímicaÁcidosIonesThe kinetics of the Ni electrode in acid solutions with a high sulphate and nickel ion concentration has been investigated in the range of 25–75°C. The active dissolution and the passive regions and the active-passive transition phenomena have been studied employing different potential perturbation techniques using both still and stirred solutions. Two electrochemical processes are competing within the prepassive film potential region, namely, the active Ni dissolution to Ni(II) ions and the Ni(OH)<sub>2</sub> film formation. Nickel passivation is explained by reaction pathways involving successive electrochemical and chemical steps implying the occurrence of hydroxo- and oxo-species as reactions intermediates. The advanced mechanism is based upon a positively charged Ni surface structure and attributes the onset of the complete passivity to a particular surface oxide species.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasFacultad de Ciencias Exactas1978info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf441-463http://sedici.unlp.edu.ar/handle/10915/82561enginfo:eu-repo/semantics/altIdentifier/issn/0010-938Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0010-938X(78)80039-0info: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:UNLP2025-09-03T10:47:50Zoai:sedici.unlp.edu.ar:10915/82561Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:47:51.116SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions |
| title |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions |
| spellingShingle |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions Vilche, Jorge Roberto Ciencias Exactas Química Cinética química Níquel Electrodos Electroquímica Ácidos Iones |
| title_short |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions |
| title_full |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions |
| title_fullStr |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions |
| title_full_unstemmed |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions |
| title_sort |
Kinetics and mechanism of the nickel electrode : II. Acid solutions containing a high concentration of sulphate and nickel ions |
| dc.creator.none.fl_str_mv |
Vilche, Jorge Roberto Arvia, Alejandro Jorge |
| author |
Vilche, Jorge Roberto |
| author_facet |
Vilche, Jorge Roberto Arvia, Alejandro Jorge |
| author_role |
author |
| author2 |
Arvia, Alejandro Jorge |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Química Cinética química Níquel Electrodos Electroquímica Ácidos Iones |
| topic |
Ciencias Exactas Química Cinética química Níquel Electrodos Electroquímica Ácidos Iones |
| dc.description.none.fl_txt_mv |
The kinetics of the Ni electrode in acid solutions with a high sulphate and nickel ion concentration has been investigated in the range of 25–75°C. The active dissolution and the passive regions and the active-passive transition phenomena have been studied employing different potential perturbation techniques using both still and stirred solutions. Two electrochemical processes are competing within the prepassive film potential region, namely, the active Ni dissolution to Ni(II) ions and the Ni(OH)<sub>2</sub> film formation. Nickel passivation is explained by reaction pathways involving successive electrochemical and chemical steps implying the occurrence of hydroxo- and oxo-species as reactions intermediates. The advanced mechanism is based upon a positively charged Ni surface structure and attributes the onset of the complete passivity to a particular surface oxide species. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Facultad de Ciencias Exactas |
| description |
The kinetics of the Ni electrode in acid solutions with a high sulphate and nickel ion concentration has been investigated in the range of 25–75°C. The active dissolution and the passive regions and the active-passive transition phenomena have been studied employing different potential perturbation techniques using both still and stirred solutions. Two electrochemical processes are competing within the prepassive film potential region, namely, the active Ni dissolution to Ni(II) ions and the Ni(OH)<sub>2</sub> film formation. Nickel passivation is explained by reaction pathways involving successive electrochemical and chemical steps implying the occurrence of hydroxo- and oxo-species as reactions intermediates. The advanced mechanism is based upon a positively charged Ni surface structure and attributes the onset of the complete passivity to a particular surface oxide species. |
| publishDate |
1978 |
| dc.date.none.fl_str_mv |
1978 |
| 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 |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/82561 |
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http://sedici.unlp.edu.ar/handle/10915/82561 |
| dc.language.none.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0010-938X info:eu-repo/semantics/altIdentifier/doi/10.1016/S0010-938X(78)80039-0 |
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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) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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