The catalysis of the reduction of Zn(II) ions by iodide ions A mechanistic study in mixed 1 M NaClO4/NaI aqueous solutions
Publication date
1984
Authors
Sluyters, J.H.
Sluyters-Rehbach, M.
Andreu, R.
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Document Type
Article
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Abstract
The two-step reduction of Zn(II) ions at the dropping mercury electrode in 1 M NaClO4/NaI mixtures is studied by the impedance method. Both steps are found to be catalysed, the increase in the logarithm of the rate constant being proportional to the surface excess of I−.
Attempts are made to interpret the results quantitatively with existing models and the applicability of these models to this electrode reaction is discussed.