Thermodynamic properties of praseodymium on the liquid cadmium electrode and evaluation of anodic dissolution behavior in LiCl-KCl eutectic

被引：14
作者：
Yin, Taiqi [1 ,2 ]
Liu, Yalan [2 ]
Wang, Lin [2 ]
Yan, Yongde [1 ]
Wang, Guiling [1 ]
Chai, Zhifang [3 ]
Shi, Weiqun [2 ]
机构：
[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Heilongjiang, Peoples R China
[2] Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Ningbo Inst Ind Technol, Engn Lab Adv Energy Mat, Ningbo 315201, Zhejiang, Peoples R China
来源：
JOURNAL OF NUCLEAR MATERIALS | 2019年 / 523卷
基金：
国家自然科学基金重大项目; 中国国家自然科学基金;
关键词：
Thermodynamic property; Electrochemical technique; Cd-Pr intermetallic compound; LiCl-KCl eutectic; Dissolution behavior; RARE-EARTH-ELEMENTS; ELECTROCHEMICAL-BEHAVIOR; URANIUM; ACTINIDES; SYSTEM; EXTRACTION; BISMUTH; ALLOYS; COEFFICIENT; SEPARATION;
D O I：
10.1016/j.jnucmat.2019.05.042
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electrochemical and thermodynamic properties of Pr on a liquid Cd electrode and the formation of Cd-Pr intermetallic compounds were systematically studied by a series of electrochemical techniques in LiCl-KCl eutectic. The activity coefficient of Pr in the liquid Cd was determined by galvanostatic intermittent titration and in-situ open circuit chronopotentiometry at various temperatures. The measurement of electromotive force was conducted to calculate the partial molar Gibbs free energies of Pr in two phase coexisting states. In addition, the thermodynamic parameters of seven Cd-Pr intermetallic compounds such as the Gibbs free energy, enthalpy and entropy of formation were also determined. The deposited Cd-Pr alloy sample was prepared by galvanostatic electrolysis and further characterized by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) with Energy Dispersive Spectroscopy (EDS). The dissolution behavior of Cd-Pr alloy as an anode material was also evaluated by monitoring the variation of anodic potential. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：16 / 25
页数：10
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