ELECTROREFINING OF NA IN HYDROPHOBIC IONIC LIQUIDS

被引：0
|
作者：
Ueda, Mikito [1 ]
机构：
[1] Hokkaido Univ, Fac Engn, Sapporo, Hokkaido 0608628, Japan
来源：
MOLTEN SALTS AND IONIC LIQUIDS 19 | 2014年 / 64卷 / 04期
关键词：
SODIUM;
D O I：
10.1149/06404.0243ecst
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrochemical reactions of metallic sodium were investigated in NaTFSI-TEATFSI ionic liquids and NaTFSI-TBATFSI ionic liquids at 160 degrees C. The melting point of the ionic liquids was 36 degrees C with lowest value in 20 mol% NaTFSI-TEATFSI. The maximum value of electrical conductivity was 36 mScm(-1) at 20 mol% NaTFSI-TEATFSI from the impedance measurement. In the anodic polarization curves, a diffusion limit current was observed at -1.8 V vs. Pt(Q.R.E) at the ionic liquid. The electrorefining experiments for 30 h were carried out at 160 degrees C. After the electrorefining, metallic sodium of 99.99 % purity was obtained by the electrorefining.
引用
收藏
页码：243 / 248
页数：6
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