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

被引：5

作者：

Cao, Peng ^{[1
]}

Zhang, Milin ^{[1
]}

Han, Wei ^{[1
]}

Yan, Yongde ^{[1
]}

Chen, Lijun ^{[1
]}

机构：

[1] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

来源：

ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2012年 / 25卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Mg-Li-Sn alloy; Molten salt; Cyclic voltammetry; Electrolysis; MECHANICAL-PROPERTIES; MICROSTRUCTURE; MAGNESIUM; ELECTRODEPOSITION; BEHAVIOR;

D O I：

10.11890/1006-7191-124-265

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Electrochemical behavior of Mg, Li and Sn on tungsten electrodes in LiCl-KCl-MgCl2-SnCl2 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 Mg-Li-Sn alloy.

引用

页码：265 / 271

页数：7

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