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Copper deposition at segmented, reticulated vitreous carbon cathode in hull cell

By R.C. Tangirala, C.T.J. Low, C. Ponce-de-Leon, S.A. Campbell and F.C. Walsh

Abstract

The electrodeposition of copper from an acid sulphate solution has been studied in a Hull cell fitted with four types of cathode; a carbon plate or a reticulated vitreous carbon (RVC) sheet was used either in a continuous or segmented form. The rates of mass transport to the planar plate and RVC electrodes have been compared in static and stirred electrolytes containing 50, 75 and<br/>100 mmol dm23 CuSO4 in 0?5 mol dm23 Na2SO4 at pH 2 and 298 K. The cathodes were divided into 10 equal sections and current vs. potential curves were obtained for each section at a constant current up to 140 mA. The current distribution over the cathodes followed a logarithmic<br/>decay with distance along the cathode; segments nearest to the anode experienced the highest rate of copper deposition

Topics: TA
Year: 2010
OAI identifier: oai:eprints.soton.ac.uk:148251
Provided by: e-Prints Soton

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Citations

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