Abstract:Intermetallic compounds of Ce-Ni, Ce-Bi and Ce-Zn were prepared from their mixture oxides (CeO2-5NiO, CeO2-2.5Bi2O3 and CeO2-5ZnO) by constant voltage electrolysis in LiCl molten salt at 923 K. In order to verify the feasibility of electrochemical reduction of these oxides, theoretical decomposition voltage was calculated by Standard Gibbs Free Energy, and electrochemical reduction behaviors of these oxides and mixture oxides were investigated by Cyclic Voltammetry (CV) measurement. The results show that electrochemical reductions of NiO, Bi2O3 and ZnO powder at 3.2 V for 4 h can be readily realized at lower voltage, which will facilitate reduction of CeO2 powder with high thermodynamic stability and poor conductivity. Electrolytic product is CeNi5/Ni, CeBi/Bi and CeZn5/Ce3Zn22/CeZn3, respectively. Morphology of electrolytic products is flocculent, accumulative and lumpy, respectively.