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Effect of Cr3+ on the electrodeposition of nickel from acidic sulfate solutions
Journal article   Peer reviewed

Effect of Cr3+ on the electrodeposition of nickel from acidic sulfate solutions

U.S. Mohanty, B.C. Tripathy, P. Singh and S.C. Das
Minerals Engineering, Vol.15(7), pp.531-537
2002
DOI: https://doi.org/10.1016/S0892-6875(02)00076-6
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Abstract

The effect of Cr3+ on the cathodic current efficiency (CE), deposit morphology, crystallographic orientations and polarisation behaviour during nickel electrodeposition from acidic sulfate solutions containing boric acid was investigated. A progressive decrease in CE was seen with increase in Cr3+ concentration showing a maximum decrease in CE of ∼10-13% at concentration ∼100 mg dm-3. The presence of Cr3+ did not change the fcc structure of the electrodeposited nickel but affected the peak intensities of the crystal planes. Polarisation of the cathode was seen in the presence of Cr3+ in the electrolyte along with a shift in the electroreduction potential of nickel (II) ion towards more negative values. The effect of Cr3+ on the electrokinetic parameters: Tafel slope (b), transfer coefficient (α) and exchange current density (i0) has also been investigated.

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13 Times Cited - Web of Science

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
2 Chemistry
2.210 Corrosion & Deposition Chemistry
2.210.791 Electrodeposition
Web Of Science research areas
Engineering, Chemical
Mineralogy
Mining & Mineral Processing
ESI research areas
Geosciences
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