The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates

The nucleation and growth of Ag(I) oxide layers on polycrystalline Ag electrodes is studied by potentiodynamic and potentiostatic current transients in 0.1 M NaOH. A model involving the diffusion controlled growth of a basal layer followed by the nucleation and growth of a secondary layer is propose...

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Autores principales: Alonso, Concepción, Salvarezza, Roberto Carlos, Vara, J. M., Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1990
Materias:
Ciencias Exactas
Química
Plata
Óxidos
polycrystalline
Electrodos
Electroquímica
Alcalinización
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84883
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84883
record_format dspace
spelling I19-R120-10915-848832023-04-10T18:40:14Z http://sedici.unlp.edu.ar/handle/10915/84883 issn:0013-4686 The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates Alonso, Concepción Salvarezza, Roberto Carlos Vara, J. M. Arvia, Alejandro Jorge 1990-02 2019-11-05T12:02:47Z en Ciencias Exactas Química Plata Óxidos polycrystalline Electrodos Electroquímica Alcalinización The nucleation and growth of Ag(I) oxide layers on polycrystalline Ag electrodes is studied by potentiodynamic and potentiostatic current transients in 0.1 M NaOH. A model involving the diffusion controlled growth of a basal layer followed by the nucleation and growth of a secondary layer is proposed. Various nucleation parameters are estimated by comparing experimental data with simulated transients, and the results are discussed in terms of the atomistic theory of electrochemical phase formation. The influence of the nucleation parameters on the shape of the current transients is analysed and some controversial results in the literature are explained. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Facultad de Ciencias Exactas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 489-496
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Plata
Óxidos
polycrystalline
Electrodos
Electroquímica
Alcalinización
spellingShingle Ciencias Exactas
Química
Plata
Óxidos
polycrystalline
Electrodos
Electroquímica
Alcalinización
Alonso, Concepción
Salvarezza, Roberto Carlos
Vara, J. M.
Arvia, Alejandro Jorge
The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates
topic_facet Ciencias Exactas
Química
Plata
Óxidos
polycrystalline
Electrodos
Electroquímica
Alcalinización
description The nucleation and growth of Ag(I) oxide layers on polycrystalline Ag electrodes is studied by potentiodynamic and potentiostatic current transients in 0.1 M NaOH. A model involving the diffusion controlled growth of a basal layer followed by the nucleation and growth of a secondary layer is proposed. Various nucleation parameters are estimated by comparing experimental data with simulated transients, and the results are discussed in terms of the atomistic theory of electrochemical phase formation. The influence of the nucleation parameters on the shape of the current transients is analysed and some controversial results in the literature are explained.
format Articulo
Articulo
author Alonso, Concepción
Salvarezza, Roberto Carlos
Vara, J. M.
Arvia, Alejandro Jorge
author_facet Alonso, Concepción
Salvarezza, Roberto Carlos
Vara, J. M.
Arvia, Alejandro Jorge
author_sort Alonso, Concepción
title The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates
title_short The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates
title_full The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates
title_fullStr The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates
title_full_unstemmed The mechanism of silver(I) oxide formation on polycrystalline silver in alkaline solution : Determination of nucleation and growth rates
title_sort mechanism of silver(i) oxide formation on polycrystalline silver in alkaline solution : determination of nucleation and growth rates
publishDate 1990
url http://sedici.unlp.edu.ar/handle/10915/84883
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