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dc.date.accessioned 2019-10-03T12:17:56Z
dc.date.available 2019-10-03T12:17:56Z
dc.date.issued 1978
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/82561
dc.description.abstract 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. en
dc.format.extent 441-463 es
dc.language en es
dc.subject Cinética química es
dc.subject Níquel es
dc.subject Electrodos es
dc.subject Electroquímica es
dc.subject Ácidos es
dc.subject Iones es
dc.title Kinetics and mechanism of the nickel electrode en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1016/S0010-938X(78)80039-0 es
sedici.identifier.issn 0010-938X es
sedici.title.subtitle II. Acid solutions containing a high concentration of sulphate and nickel ions en
sedici.creator.person Vilche, Jorge Roberto es
sedici.creator.person Arvia, Alejandro Jorge es
sedici.subject.materias Ciencias Exactas es
sedici.subject.materias Química es
sedici.description.fulltext true es
mods.originInfo.place Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas es
mods.originInfo.place Facultad de Ciencias Exactas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Corrosion Science es
sedici.relation.journalVolumeAndIssue vol. 18, no. 5 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)