A. Hubin et J. Vereecken, ELECTROCHEMICAL REDUCTION OF SILVER THIOSULFATE COMPLEXES .2. MECHANISM AND KINETICS, Journal of Applied Electrochemistry, 24(5), 1994, pp. 396-403
In this paper the thermodynamic data for complex formation between Ag and S2O32- ions, determined previously, are applied to kinetic invest
igation of the reduction of silver thiosulphate complexes. Both electr
ochemical (linear sweep voltammetry on a rotating disc electrode) and
surface analytical (Auger electron spectroscopy) techniques are used.
The deposits resulting from the electrodeposition of silver 'thiosulph
ate complexes are shown to be composed of silver and to be polycrystal
line. The reduction follows a mechanism involving mass and charge tran
sfer and chemical reaction steps. The relevant kinetic parameters are
calculated and a rate equation describing the kinetics of the reductio
n is given.