Abstract

The cathodic reactions of indium(III) and tin(II) in EMI-BF4-Cl melts have been investigated by cyclic voltammetry, chronoamperometry, and potentiostatic electrolysis. The cyclic voltammograms measured in the melt containing In (III) or Sn (II) show a pair of reduction and oxidation waves for each metal. The initial stage of the electrodeposition was analyzed by chronoamperometry. The depositions of indium and tin proceed through a three-dimensional nucleation-growth process and a diffusion-limited process, respectively. The electrodepositon of tin-indium alloys was also investigated, and the electrochemical and XRD results suggest the alloys can be deposited from this ambient temperature melt.

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