The electroformation and electroreduction of anodic films formed on silver in 0.1 M sodium hydroxide in the potential range of the Ag/Ag2O couple

The complex electrochemical reactions related to the electroformation and electroreduction of silver(I) oxide films in base electrolyte were investigated by means of combined potentiodynamic techniques and potential steps. The anodic process involves the initial fast OH<sup>−</sup> ion d...

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Detalles Bibliográficos
Autores principales: Lopez Teijelo, Manuel, Vilche, Jorge Roberto, Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1984
Materias:
Ciencias Exactas
Química
electroformation
electroreduction
Plata
Hidróxido de Sodio
Electroquímica
Electrólitos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83546
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83546
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
electroformation
electroreduction
Plata
Hidróxido de Sodio
Electroquímica
Electrólitos
spellingShingle Ciencias Exactas
Química
electroformation
electroreduction
Plata
Hidróxido de Sodio
Electroquímica
Electrólitos
Lopez Teijelo, Manuel
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
The electroformation and electroreduction of anodic films formed on silver in 0.1 M sodium hydroxide in the potential range of the Ag/Ag2O couple
topic_facet Ciencias Exactas
Química
electroformation
electroreduction
Plata
Hidróxido de Sodio
Electroquímica
Electrólitos
description The complex electrochemical reactions related to the electroformation and electroreduction of silver(I) oxide films in base electrolyte were investigated by means of combined potentiodynamic techniques and potential steps. The anodic process involves the initial fast OH<sup>−</sup> ion discharge yielding OH-adsorbed species and later continues to form the silver(I) oxide layer. The latter behaves as a duplex structure anodic layer with a degree of hydration changing with depth. The electroreduction characteristics of the anodic film depend both on potential sweep and anodic charge, and the relationships of the corresponding kinetic parameters fit qualitatively with those predicted by nucleation and growth mechanisms. Activity increases of silver caused by the potential sweeps are interpreted by the simultaneous contribution of the increase in the concentration of silver active surface sites and the change in size distribution of silver electrodeposited from silver(I) oxide.
format Articulo
Articulo
author Lopez Teijelo, Manuel
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author_facet Lopez Teijelo, Manuel
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author_sort Lopez Teijelo, Manuel
title The electroformation and electroreduction of anodic films formed on silver in 0.1 M sodium hydroxide in the potential range of the Ag/Ag2O couple
title_short The electroformation and electroreduction of anodic films formed on silver in 0.1 M sodium hydroxide in the potential range of the Ag/Ag2O couple
title_full The electroformation and electroreduction of anodic films formed on silver in 0.1 M sodium hydroxide in the potential range of the Ag/Ag2O couple
title_fullStr The electroformation and electroreduction of anodic films formed on silver in 0.1 M sodium hydroxide in the potential range of the Ag/Ag2O couple
title_full_unstemmed The electroformation and electroreduction of anodic films formed on silver in 0.1 M sodium hydroxide in the potential range of the Ag/Ag2O couple
title_sort electroformation and electroreduction of anodic films formed on silver in 0.1 m sodium hydroxide in the potential range of the ag/ag2o couple
publishDate 1984
url http://sedici.unlp.edu.ar/handle/10915/83546
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bdutipo_str Repositorios
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