Volume 7, Number 2 (Spring 2010 2010)                   IJMSE 2010, 7(2): 45-48 | Back to browse issues page


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M. Nusheh*, H. Yoozbashizadeh. STUDY ON ELECTROWINNING OF COBALT BY CYCLIC VOLTAMMETRYTECHNIQUE. IJMSE. 2010; 7 (2) :45-48
URL: http://ijmse.iust.ac.ir/article-1-260-en.html

Abstract:   (8756 Views)

Abstract:

the competition between the precipitation of cobalt ions and evolution of hydrogen gas on the cathode surface during

the reduction process in a sulfate bath, investigation on the mechanism of metal precipitation is of great importance.

In the present work, study on the kinetics of cobalt electrowinning and the mechanism of the involved reactions have

been carried out. The obtained results, confirm the mechanism of cobalt precipitation by depletion of hydroxides. The

effects of temperature and scan rate parameters were studied on electrowinning of cobalt by cyclic voltammetry

technique. The diffusion coefficient and rate constant of the reactions were measured and calculated by performed

experiments.

Nowadays cobalt is mostly produced through the electrowinning process of sulfate solutions. Regarding to
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