Citation: TANG Hao, YAN Yong-De, ZHANG Mi-Lin, XUE Yun, ZHANG Zhi-Jian, DU Wei-Chao, HE Hui. Electrochemistry of MgCl₂ in LiCl-KCl Eutectic Melts[J]. Acta Physico-Chimica Sinica, ;2013, 29(08): 1698-1704. doi: 10.3866/PKU.WHXB201305102 shu

Electrochemistry of MgCl₂ in LiCl-KCl Eutectic Melts

TANG Hao ¹ ,
YAN Yong-De ^1,2, ,
ZHANG Mi-Lin ¹ ,
XUE Yun ² ,
ZHANG Zhi-Jian ² ,
DU Wei-Chao ¹ ,
HE Hui ³

1.
1 Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China;
2 Key Discipline Laboratory of Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, P. R. China;
3 China Institute of Atomic Energy, Beijing 102413, P. R. China

Received Date: 25 February 2013
Available Online: 10 May 2013
Fund Project: 国家高技术研究发展计划(2011AA03A409) (2011AA03A409) 国家自然科学基金(21103033, 21101040, 91226201) (21103033, 21101040, 91226201) 中央高校基本科研业务经费(HEUCF201310012) (HEUCF201310012)黑龙江省普通高等学校青年学术骨干支持计划项目(1253G016)资助 (1253G016)

The electrochemical behavior and thermodynamic properties of MgCl₂ dissolved in LiCl-KCl eutectic melts in the temperature range of 723-908 K were investigated. Cyclic and square wave voltammetry experiments indicated that the reduction of Mg ions into Mg metal occurred in a single step and involved exchange of two electrons. The diffusion coefficient (D) of Mg(II) was determined by the Berzins-Delahay equation and the Arrhenius law was validated by plotting lgD versus T^-1 for the reduction of Mg(II). Open circuit chronopotentiometry was used to determine the equilibrium potential of Mg(II)/Mg(0). The standard apparent potentials of the Mg(II)/Mg(0) system and the activity coefficients of Mg(II) in LiCl-KCl eutectic melts based on a pure supercool reference state were calculated at several temperatures.
- Molten chloride,
- Thermodynamic property,
- Activity coefficient of MgCl₂,
- Standard apparent potential
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Electrochemistry of MgCl2 in LiCl-KCl Eutectic Melts

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Electrochemistry of MgCl₂ in LiCl-KCl Eutectic Melts