Effects of Copper on the Electrodeposition of Nickel¹

Yu Jingxian, Chen Yongyan, and Yang Hanxi

Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China

Received March 2, 1998

Abstract—The effects of the Cu²⁺ concentration on the electrodeposition of nickel onto the glassy carbon elec-
trode is studied by cyclic voltammetry and the step potential method in a sulphate solution. It is found that when
increasing the Cu²⁺ concentration, the reduction potential of nickel shifts to the positive direction, the current
loops of nickel electrocrystallization narrow and the nucleation activation energy G of nickel decreases.

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