The electrochemistry of gold in acid aqueous solutions containing chloride ions

Results obtained with differently prepared gold electrodes in acid solutions containing chloride ion at temperatures ranging from 22 to 65°C are reported. Potentiostatic techniques and rotating disc electrodes were employed. The anodic dissolution, the onset of passivity and the cathodic deposition...

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Detalles Bibliográficos
Autores principales: Herrera Gallego, J., Castellano, Carlos E., Calandra, Alfredo J., Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1975
Materias:
Ciencias Exactas
Química
Electroquímica
Oro
Cloro
Electrodos
Acido
Discos Rotatorios
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80375
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80375
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
Electroquímica
Oro
Cloro
Electrodos
Acido
Discos Rotatorios
spellingShingle Ciencias Exactas
Química
Electroquímica
Oro
Cloro
Electrodos
Acido
Discos Rotatorios
Herrera Gallego, J.
Castellano, Carlos E.
Calandra, Alfredo J.
Arvia, Alejandro Jorge
The electrochemistry of gold in acid aqueous solutions containing chloride ions
topic_facet Ciencias Exactas
Química
Electroquímica
Oro
Cloro
Electrodos
Acido
Discos Rotatorios
description Results obtained with differently prepared gold electrodes in acid solutions containing chloride ion at temperatures ranging from 22 to 65°C are reported. Potentiostatic techniques and rotating disc electrodes were employed. The anodic dissolution, the onset of passivity and the cathodic deposition of the metal are investigated under different experimental conditions. The anodic dissolution of Au is discussed in terms of possible reaction mechanisms involving the participation of different adsorbed species. The onset of passivation is related to the depletion of chloride ion at the reaction interface. The experimental voltammograms can be reporduced by means of an equation which considers the diffusion of chloride ion, the activation polarization related to the dissolution of Au and the establishment of passivity.
format Articulo
Articulo
author Herrera Gallego, J.
Castellano, Carlos E.
Calandra, Alfredo J.
Arvia, Alejandro Jorge
author_facet Herrera Gallego, J.
Castellano, Carlos E.
Calandra, Alfredo J.
Arvia, Alejandro Jorge
author_sort Herrera Gallego, J.
title The electrochemistry of gold in acid aqueous solutions containing chloride ions
title_short The electrochemistry of gold in acid aqueous solutions containing chloride ions
title_full The electrochemistry of gold in acid aqueous solutions containing chloride ions
title_fullStr The electrochemistry of gold in acid aqueous solutions containing chloride ions
title_full_unstemmed The electrochemistry of gold in acid aqueous solutions containing chloride ions
title_sort electrochemistry of gold in acid aqueous solutions containing chloride ions
publishDate 1975
url http://sedici.unlp.edu.ar/handle/10915/80375
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