Articulo
Kinetics and mechanism of the anodic dissolution of nickel in HCl-dimethylsulphoxide solutions
Registro en:
issn:0013-4686
Autor
Delgado, A. B.
Posadas, Dionisio
Arvia, Alejandro Jorge
Institución
Resumen
The anodic dissolution of nickel in HCl-DMSO solutions containing different supporting electrolytes has been studied between 20–40°C. The electrodissolution and electrodeposition are predominantly activated electrode processes. At high anodic potentials and in the presence of perchlorate ions at high concentration passivation sets in. A probable reaction pathway is postulated which explains most of the experimental findings. Passivation corresponds to a salt precipitation-dissolution process at the electrode vicinity. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas