Cyclicvoltammetry and Morphology studies on Zn – Co alloy in the presence of additives

  S. Selvakumari,  M. Chandran,  S. Premlatha,  G.N.K.RameshBapu

The voltammetric studies reveal the combined interaction of additives on plating surface during electrodeposition. The effects of different combination of additives namely Vanillin (Vn), Saccharin (Sa) and Rochelle salt (Rs) were studied with respect to micro hardness, SEM and AFM on zinc –cobalt alloy deposition. The oxidation potentials and the reduction potentials during deposition from zinc and zinc – cobalt alloy bath in presence of additives were analyzed at different scan rate by cyclic voltammetric studies. The deposition obtained from zinc – cobalt alloy bath at different current densities using various additives has improved the nature of the deposit that revealed from micro hardness, SEM and AFM when compared to zinc bath. Cyclic voltammetry analysis showed very low reduction potential in zinc –cobalt alloy bath with vanillin and rochelle salt.

Keywords- Zn-Co alloy, Electrodeposition, Micro hardness, Morphology, Cyclic voltammetry.

Unique Identification Number - IJEDR1801018
Page Number(s) - 101-107
Pubished in - Volume 6 | Issue 1 | January 2018
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  S. Selvakumari,  M. Chandran,  S. Premlatha,  G.N.K.RameshBapu,   "Cyclicvoltammetry and Morphology studies on Zn – Co alloy in the presence of additives", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.6, Issue 1, pp.101-107, January 2018, Available at :http://www.ijedr.org/papers/IJEDR1801018.pdf