本文研究了稀土金属钕(Nd)在1-丁基-1-甲基吡咯烷双(三氟甲磺酰)亚胺盐([BMP]Tf2 N)离子液体中的阳极行为.采用循环伏安法测定了[BMP]Tf2N的电位窗,通过线性伏安扫描、恒电流极化以及恒电位极化研究了Nd在[BMP]Tf2N中阳极溶解,利用恒电流溶解计算了Nd的溶解价态,最后采用SEM考察了恒电流溶解之后Nd的表面形貌.结果表明:电极电位超过1.4 V(vs.Pt)之后,Nd表面氧化膜发生破坏,之后Nd电极开始活性溶解;Nd溶解之后的产物为[Nd(Tf2N)x](x-3)-;在较低的电流密度下,如0.1mA/cm2,Nd表面氧化膜发生局部破坏,出现局部溶解的形貌;在较高的电流密度下,如1mA/cm2,Nd表面氧化膜完全被破坏,出现均匀溶解形貌.
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