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Diffusion mass transfer in a closed electrolytic microcell. Numerical simulation for the Cu/CuSO4(H2SO4)/Cu system

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Abstract

This paper reports the results of mathematical simulation of electrolysis in a closed electrolytic microcell in a Cu/CuSO4(H2SO4)/Cu system, in which a two-stage electrode reaction, forming a relatively stable intermediate, and chemical reactions between the electrolyte components take place. The dependence of the current that flows through the cell on the electrolysis time and voltage on the cell electrodes was studied by numerical methods. The steady-state profiles of the concentrations of copper-containing species were calculated. The diffusion mass transfer rate in the cell was evaluated. The results were compared with the calculated data for the cell with a recessed electrode configuration with the indicator electrode lying at the bottom of a hole in the insulator. The mass transfer rate in the closed microcell was higher than on the recessed electrode.

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Authors and Affiliations

  1. Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

    A. G. Zelinsky & B. Ya. Pirogov

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  1. A. G. Zelinsky
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  2. B. Ya. Pirogov
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Correspondence to A. G. Zelinsky.

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Original Russian Text © A.G. Zelinsky, B.Ya. Pirogov, 2012, published in Elektrokhimiya, 2012, Vol. 48, No. 8, pp. 851–859.

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Zelinsky, A.G., Pirogov, B.Y. Diffusion mass transfer in a closed electrolytic microcell. Numerical simulation for the Cu/CuSO4(H2SO4)/Cu system. Russ J Electrochem 48, 773–781 (2012). https://doi.org/10.1134/S1023193512070142

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  • DOI: https://doi.org/10.1134/S1023193512070142

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