LIN Ru-shan, WANG You-qun, HE Hui, YE Guo-an. Electrochemical Behavior of Ce(Ⅲ) on Liquid Ga Electrode in LiCl-KCl Eutectic[J]. Journal of Nuclear and Radiochemistry, 2019, 41(6): 530-536. DOI: 10.7538/hhx.2019.YX.2018031
    Citation: LIN Ru-shan, WANG You-qun, HE Hui, YE Guo-an. Electrochemical Behavior of Ce(Ⅲ) on Liquid Ga Electrode in LiCl-KCl Eutectic[J]. Journal of Nuclear and Radiochemistry, 2019, 41(6): 530-536. DOI: 10.7538/hhx.2019.YX.2018031

    Electrochemical Behavior of Ce(Ⅲ) on Liquid Ga Electrode in LiCl-KCl Eutectic

    • The electrochemical behavior of Ce(Ⅲ) on the both liquid Ga pool and film Ga electrode is investigated by the various transient methods including of cyclic voltammetry(CV), square wave voltammetry(SWV), and chronopotentiometry(CP). The results show that Ce(Ⅲ) is reduced into αGa6Ce by one step process on liquid Ga pool cathode: Ce(Ⅲ)+3e+6Ga=αGa6Ce, and the reaction is irreversible and diffusion-controlled. The relationship between the diffusion coefficient of Ce(Ⅲ) and the temperature can be calculated as: ln D=2.88-10 118.4/T. The temperature dependence of the half-wave potential for Ce(Ⅲ)/αGa6Ce is determined to be: E=-1.701+5.472×10-4T. On the film Ga electrode, at least three kinds of intermetallic compounds are observed.
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