Abstract
Abstract Under the assumption that the electrolytic reduction of the complex metal ions at the dropping mercury electrode follows the mechanism expressed by Eqs. (3) and (4), the general expression of the current-voltage curve has been derived by solving the corresponding diffusion problem with the same accuracy as the Ilkovic equation, and the special two cases corresponding to the reversible and irreversible electron transfer process have been discussed in some detail. Moreover, as an example of the application of the present theory, the irreversible reduction of the ammonia-nickel complex ion has been analysed by the aid of the experimental data given by K. Morinaga. A fairly good agreement between the experimental data and the theoretical results has been obtained, and it has been found that the species Ni(NH3)2++ participates in the electron transfer process with the forward rate constant equal to 10−16.8 cm./sec. and the transfer coefficient equal to 0.71.
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