Electrochemical Deposition and Dissolution of Thallium from Sulfate Solutions

Yenlik Ussipbekova, Gulziya A. Seilkhanova, Ch. Jeyabharathi, Fritz Scholz, Andrey Kurbatov, Mikhail Nauryzbayev, Andrey V. BEREZOVSKIY

2015

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DOI 10.1155/2015/357514
Data confidence 70 medium
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Abstract

The electrochemical behavior of thallium was studied on glassy carbon electrodes in sulfate solutions. Cyclic voltammetry was used to study the kinetics of the electrode processes and to determine the nature of the limiting step of the cathodic reduction of thallium ions. According to the dependence of current on stirring rate and scan rate, this process is diffusion limited. Chronocoulometry showed that the electrodeposition can be performed with a current efficiency of up to 96% in the absence of oxygen.