Electrochemical and optical study of the confined aqueous layer adsorbed on gold electrodes cycled in phosphate and dodecylsulphate solutions

The properties of the confined aqueous layer potentiodynamically formed on polycrystalline gold in aqueous phosphate and sodium dodecylsulphate solutions were studied using voltammetry, ellipsometry, and contact angle measurements. The nature of the incipient oxide layer was analyzed as a function o...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Zerbino, Jorge Omar, Maltz, Alberto Leonardo, Falivene, C., Avaca, N. E., Sustersic, M. G., Siboni, S., Della Volpe, C.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Física
Química
Gold oxide
Ellipsometry
Contact angle
Voltammetry
Captive bubble
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131360
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:The properties of the confined aqueous layer potentiodynamically formed on polycrystalline gold in aqueous phosphate and sodium dodecylsulphate solutions were studied using voltammetry, ellipsometry, and contact angle measurements. The nature of the incipient oxide layer was analyzed as a function of the cycling time in the double layer-oxide monolayer potential region. The replacement of the electrolyte by hexane allows the increase of the optical signal. Different potential cycling conditions change the homogeneity of the confined aqueous incipient oxide layer leading to different structural characteristics.

Ejemplares similares