Preparation of ternary Mg-Li-Sn alloys from molten salt by electrolysis

被引：0
作者：
Peng CAO
机构：
来源：
ActaMetallurgicaSinica(EnglishLetters) | 2012年 / 25卷 / 04期
基金：
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词：
Mg-Li-Sn alloy; Molten salt; Cyclic voltammetry; Electrolysis;
D O I：
暂无
中图分类号：
TG146.22 [];
学科分类号：
080502 ;
摘要：
Electrochemical behavior of Mg,Li and Sn on tungsten electrodes in LiCl-KCl-MgCl2SnCl2 melts at 873 K was investigated.Cyclic voltammograms(CVs) showed that the underpotential deposition(UPD) of magnesium on pre-deposited tin leads to the formation of a Mg-Sn alloy,and the succeeding underpotential deposition of lithium on pre-deposited Mg-Sn alloy leads to the formation of a Mg-Li-Sn alloy.Chronopotentiometric measurements indicated that the codepositon of Mg,Li and Sn occurs at current densities more negative than-1.16 A.cm 2.X-ray diffraction(XRD) indicated that Mg2Sn phase is formed via galvanostatic electrolysis.The element Mg distributes homogeneously and Sn locates mainly on the grain boundaries in the MgLi-Sn alloy.
引用
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页码：265 / 271
页数：7
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