Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide

The kinetics of polycrystalline iron electrodes has been investigated under different experimental conditions, employing solutions of hydrogen chloride in dimethylsulphoxide in the presence of KClO<sub>4</sub> as supporting electrolyte. Anodic E/I curves exhibit active and passive region...

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Detalles Bibliográficos
Autores principales: Posadas, Dionisio, Arvia, Alejandro Jorge, Podestá, José J.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1971
Materias:
Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/121734
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-121734
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
spellingShingle Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
Posadas, Dionisio
Arvia, Alejandro Jorge
Podestá, José J.
Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
topic_facet Química
Ciencias Exactas
Iron electrode
Kinetics
Electrodeposition
description The kinetics of polycrystalline iron electrodes has been investigated under different experimental conditions, employing solutions of hydrogen chloride in dimethylsulphoxide in the presence of KClO<sub>4</sub> as supporting electrolyte. Anodic E/I curves exhibit active and passive regions, the former having a Tafel slope of 2RT/3F. At the lower cathodic polarizations, hydrogen discharge occurs and at higher, the electrodeposition of ferrous ion takes place; both reactions have Tafel slopes of 2RT/F. Other kinetic parameters obtained include the reaction orders, dependence of corrosion potential on HCl concentration, non-steady slopes from decay curves, experimental activation energy, etc. The interpretation of the reactions is given in terms of a consecutive reaction mechanism involving the participation of solvent ions. The reaction scheme is formally the same as already discussed for the iron electrode in aqueous solutions to explain the 2RT/3F anodic Tafel slope.
format Articulo
Articulo
author Posadas, Dionisio
Arvia, Alejandro Jorge
Podestá, José J.
author_facet Posadas, Dionisio
Arvia, Alejandro Jorge
Podestá, José J.
author_sort Posadas, Dionisio
title Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_short Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_full Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_fullStr Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_full_unstemmed Kinetics and mechanism of the iron electrode in solutions of HCl in dimethylsulphoxide
title_sort kinetics and mechanism of the iron electrode in solutions of hcl in dimethylsulphoxide
publishDate 1971
url http://sedici.unlp.edu.ar/handle/10915/121734
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AT arviaalejandrojorge kineticsandmechanismoftheironelectrodeinsolutionsofhclindimethylsulphoxide
AT podestajosej kineticsandmechanismoftheironelectrodeinsolutionsofhclindimethylsulphoxide
bdutipo_str Repositorios
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