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۱Electrochemical Investigation of Ni(II) Ions in Nickel Chloride and Nickel Sulfate at Carbon Paste Electrode: A Cyclic Voltammetric Study
اطلاعات انتشار: Analytical & Bioanalytical Electrochemistry، پنجم،شماره۶، Dec ۲۰۱۳، سال
تعداد صفحات: ۱۱
Nickel bearing compounds exhibit excellent electrochemical properties in an alkaline medium due to the reversible one–electron redox process of the couple Ni(III)\Ni(II). Nickel(II) ions were investigated in the compounds like nickel chloride and nickel sulfate at carbon paste electrode by using cyclic voltammetric technique. The well–defined redox peaks were observed for both nickel chloride and nickel sulfate compounds in 0.1 M KOH solution as supporting electrolyte at scan rate of 100 mVs–1. The effect of scan rates and concentrations were studied and the effects show good linear relationship with the peak currents. The cyclic voltammetric behavior of Ni(II) ions were also examined in 1 M KCl solution as supporting electrolyte. The Ni(II) ions shows well defined redox peaks in presence of potassium ferricyanide as a mediator.
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