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Vol. 26 No. 1 (2014): Vol 26 Issue 1

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Electroplating of Horizontal Steel Cylinders in Unstirred Copper Sulphate Solutions

https://doi.org/10.14233/ajchem.2014.15318A
Abdel-Monem M. Ahmed
Department of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, and P.O. Box 426, Alexandria 21321, Egypt
Mona Darweesh
Department of Chemistry, Faculty of Engineering, Tanta University, Tanta, Egypt

Corresponding Author(s) : Abdel-Monem M. Ahmed

profabdelmonem@gmail.com

Asian Journal of Chemistry, Vol. 26 No. 1 (2014): Vol 26 Issue 1

Abstract

Limiting currents were measured for the electroplating of horizontal steel cylinders in unstirred CuSO4 solutions. Variables studied were CuSO4 concentration, cylinder diameter and temperature. The limiting current was found to increase with CuSO4 concentration over the concentration range from 0.01 to 0.2 M. Cylinder diameter was found to have no effect on the limiting current within the range studied (0.8-3.8 cm diameter). The effect of temperature on the limiting current was found to obey Arrhenius equation. The activation energy for electrodeposition was found to be 15.12-32.5 kJ mol-1. Results were explained in the light of the theory of electrochemical mass transfer.

Keywords

Electroplating Cylinders Steel Mass transfer
M. Ahmed, A.-M., & Darweesh, M. (2013). Electroplating of Horizontal Steel Cylinders in Unstirred Copper Sulphate Solutions. Asian Journal of Chemistry, 26(1), 66–68. https://doi.org/10.14233/ajchem.2014.15318A
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