A Comparative Study of Nickel Electrodeposition Using Deep Eutectic Solvents and Aqueous Solutions

被引:182
作者
Abbott, Andrew P. [1 ]
Ballantyne, Andrew [1 ]
Harris, Robert C. [1 ]
Juma, Jamil A. [1 ,2 ]
Ryder, Karl S. [1 ]
Forrest, Greg [1 ]
机构
[1] Univ Leicester, Dept Chem, Mat Ctr, Leicester LE1 7RH, Leics, England
[2] Univ Koya, Dept Chem, Erbil, Iraq
关键词
Electroplating; nickel; deep eutectic solvents; speciation; IONIC LIQUIDS; CHOLINE CHLORIDE; WATTS BATH; ALLOY COATINGS; BORIC-ACID; NI; DEPOSITION; COMPLEXES; MIXTURES; FILM;
D O I
10.1016/j.electacta.2015.07.051
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Metal electrodeposition using ionic liquid electrolytes and deep eutectic solvents is now well known but to our knowledge for electrolytic deposition of metals such as nickel no direct comparison has thus far been drawn between deposition using aqueous solutions and DES under otherwise identical conditions. In the current study it is shown that nickel deposition can be carried out with similar deposition rates in aqueous and ionic media despite the significant differences in viscosity and conductivity. It is, however, shown that in ionic media the morphology of the deposits is markedly different from that achieved using a Watts nickel bath and that one aspect of these differences manifests itself in significant increase in the coating hardness. It is proposed that the observed morphology differences occur due to the variations of nickel speciation in each electrolyte environment. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:718 / 726
页数:9
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