Abstract
The analytical expressions were derived to calculate thickness of a three-dimensional flow electrode (TFE) working in limiting diffusion current mode in the cases of unidirectional and multidirectional electric field and solution flow for the given degree of metal extraction. The algorithm was suggested on the basis on the derived formulas and earlier published mathematical models of nonstationary electrolysis at TFE to calculate the whole electrode working conditions at the limiting diffusion current with parallel electrochemical reactions. The calculations and experimental studies were carried out on copper electrodeposition from sulfate electrolyte on TFE working in the limiting diffusion current mode. The effect of major electrochemical reactions to the distribution of potential and partial current densities by the electrode thickness was demonstrated. The process potential distribution was given for various electrode conductivities. A good compliance was shown between the results of calculations and experimental studies.
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Original Russian Text © A.N. Koshev, V.K. Varentsov, 2010, published in Elektrokhimiya, 2010, Vol. 46, No. 8, pp. 971–976.
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Koshev, A.N., Varentsov, V.K. Parameters of electrolysis in 3D flow electrode in limiting diffusion current mode. Russ J Electrochem 46, 912–917 (2010). https://doi.org/10.1134/S1023193510080082
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DOI: https://doi.org/10.1134/S1023193510080082