以一氯丁烷、N-甲基咪唑和KPF6为原料合成了1-丁基-3-甲基咪唑六氟磷酸盐离子液体([BMIM] PF6),用红外光谱(IR)法对合成的[BMIM] PF6进行了结构分析.用循环伏安法分别测试了[BMIM] PF6的电化学窗口和在[BMIM] PF6中加入乙二醇(EG)和CeCl3形成的体系([BMIM] PF6-EG-CeCl3)中Ce(Ⅲl)的电化学行为.结果表明,在80℃时[BMIM] PF6的电化学窗口为4.0V,[BMIM] PF6-EG-CeCl3体系中Ce(Ⅲ)的电沉积是受扩散控制的不可逆电极过程,此过程传递系数α为0.05,扩散系数D0为2.45×10-6 cm2·s-1.通过扫描电镜(SEM)观察了Ce在Cu片表面上电沉积层的形貌,发现随着沉积电势的增加,金属铈镀层的颗粒呈从小到大的变化规律.用X射线能量色散谱(EDS)分析了该电沉积层成分发现电沉积镀层为纯金属铈及其氧化物.
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