Electrochemical behavior and extraction of Nd (III) on reactive zinc electrode in LiCl-KCl melts

被引：0
作者：
Ji, De-Bin [1 ,2 ]
Liang, Rui-Long [1 ,2 ]
Tan, Heng-Yu [1 ,2 ]
Zhang, Shao-Ting [1 ,2 ]
Ji, De-Qiang [1 ,2 ]
Wu, Hong-Jun [1 ,2 ]
机构：
[1] Northeast Petr Univ, Natl Key Lab Continental Shale Oil, Daqing 163318, Peoples R China
[2] Northeast Petr Univ, Coll New Energy & Mat, Daqing 163318, Peoples R China
来源：
JOURNAL OF NUCLEAR MATERIALS | 2025年 / 609卷
基金：
中国国家自然科学基金;
关键词：
Nd; extract; Zn-coated Mo electrode; liquid Zn electrode; Zn-Nd intermetallic compounds; THERMODYNAMIC PROPERTIES; BISMUTH ELECTRODE; SM-ZN; SEPARATION; CHLORIDE; COUPLE; PRASEODYMIUM; AMERICIUM; NEODYMIUM; ACTINIDES;
D O I：
10.1016/j.jnucmat.2025.155751
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The efficient extraction of neodymium is of great significance in the dry reprocessing process for the nuclear fuel cycle. In this research, the extraction of Nd in a LiCl-KCl molten salt system was achieved by potentiostatic electrolysis and galvanostatic electrolysis using Zn as the active cathode. A variety of electrochemical methods were employed to deeply investigate the electrochemical behavior of Nd on an inert Mo electrode, galvanized (Zn-coated) Mo electrode, and liquid Zn electrode in the LiCl-KCl melt. The six Zn-Nd intermetallic compounds formed on the Zn-coated Mo electrode were analyzed and determined in detail, and the thermodynamic properties of these six Zn-Nd intermetallic compounds were investigated. Furthermore, the activity coefficients and solubilities of Nd on the liquid Zn electrode were calculated at different temperatures. This study provides some fundamental data for spent fuel reprocessing technology and is expected to help advance the sustainable development of nuclear energy.
引用
收藏
页数：16
相关论文
共 47 条
[1]   DISTRIBUTION OF PLUTONIUM, AMERICIUM, AND SEVERAL RARE-EARTH FISSION-PRODUCT ELEMENTS BETWEEN LIQUID CADMIUM AND LICL-KCL EUTECTIC [J].
ACKERMAN, JP ;
SETTLE, JL .
JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 199 (1-2) :77-84
[2]  
Aikens D., 1983, J CHEM EDUC, V60, pA25
[3]  
Bard A.J., 2001, Electrochemical methods: fundamentals and applications, V2, P580
[4]   Solubilization of rare earth oxides in the eutectic LiCl-KCl mixture at 450 °C and in the equimolar CaCl2-NaCl melt at 550 °C [J].
Castrillejo, Y ;
Bermejo, MR ;
Barrado, E ;
Martínez, AM ;
Arocas, PD .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2003, 545 :141-157
[5]  
CHIOTTI P, 1973, METALL TRANS, V4, P1527
[6]   Determination of the activity coefficient of Am in liquid Al by electrochemical methods [J].
De Cordoba, G. ;
Laplace, A. ;
Conocar, O. ;
Lacquement, J. .
JOURNAL OF NUCLEAR MATERIALS, 2009, 393 (03) :459-464
[7]   Determination of the activity coefficient of neodymium in liquid aluminium by potentiometric methods [J].
De Cordoba, G. ;
Laplace, A. ;
Conocar, O. ;
Lacquement, J. ;
Caravaca, C. .
ELECTROCHIMICA ACTA, 2008, 54 (02) :280-288
[8]   Extraction of lanthanides and actinides present in spent nuclear fuel and in electronic waste [J].
De Jesus, Karl ;
Rodriguez, Rene ;
Baek, D. L. ;
Fox, R., V ;
Pashikanti, Srinath ;
Sharma, Kavita .
JOURNAL OF MOLECULAR LIQUIDS, 2021, 336 (336)
[9]   Electrochemical and spectrophotometric study on neodymium ions in molten alkali chloride mixtures [J].
Fukasawa, Kazuhito ;
Uehara, Akihiro ;
Nagai, Takayuki ;
Fujii, Toshiyuki ;
Yamana, Hajimu .
JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (16) :5112-5118
[10]   Selective dissolution and separation of lanthanides and actinides from spent nuclear fuel using inorganic salt solutions: A sustainable approach [J].
Gao, Xilin ;
Ding, Anting ;
Li, Yuxin ;
Liu, Chuanying ;
Xiao, Chengliang .
SEPARATION AND PURIFICATION TECHNOLOGY, 2025, 360
12345