Abstract
Thiourea, a levelling agent used in copper electrorefining baths, is the focus of a cyclic and rotating disc or ring-disc electrode voltammetric study. Thiourea adsorption, its interaction with Cu2+ and formation of Cu(Tu) n + complexes are part of the multistep electrode mechanism proposed. Results at platinum and glassy carbon electrodes are applicable to copper electrodes in electrorefining.
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Cofré, P., Bustos, A. Voltammetric behaviour of the copper(II)—thiourea system in sulphuric acid medium at platinum and glassy carbon electrodes. J Appl Electrochem 24, 564–568 (1994). https://doi.org/10.1007/BF00249859
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DOI: https://doi.org/10.1007/BF00249859