Electrode reaction of Pr on Sn electrode and its electrochemical recovery from LiCl-KCl molten salt

被引：18

作者：

Han, Wei ^{[1
]}

Wang, Wei ^{[1
]}

Zhang, Yongqiang ^{[1
]}

Wang, Yijie ^{[1
]}

Li, Mei ^{[1
]}

Sun, Yang ^{[1
]}

机构：

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

来源：

INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 2021年 / 45卷 / 06期

基金：

中国国家自然科学基金;

关键词：

electrochemical behavior; electroextraction; kinetic data; Pr-Sn intermetallics; Sn electrode; thermodynamic data; LIQUID CADMIUM CATHODE; THERMODYNAMIC PROPERTIES; INTERMETALLIC COMPOUNDS; ANODIC-DISSOLUTION; BI ELECTRODE; CO-REDUCTION; AL ALLOYS; BEHAVIOR; EXTRACTION; URANIUM;

D O I：

10.1002/er.6394

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

To recover Pr from molten chlorides, the electrode reactions of Pr3+ on Sn-coated W and liquid Sn electrodes were studied by a group of electrochemical techniques. CV and SWV results exhibited that the electrochemical signals pertaining to the formation of Pr-Sn alloy compounds and solid solution appeared at less negative potentials than that of Pr3+ on W electrode. The thermodynamic data of Pr-Sn alloy compounds and the kinetic parameters for PrSn3/Pr3+ pair were determined employing OCP, LP, and Tafel methods, separately. The measured diffusion coefficient (D) of Pr in liquid Sn metal was 9.40 x 10(-6) cm(2) s(-1). Furthermore, the electrochemical recovering Pr from molten salt was performed using liquid Sn as a working electrode, and the formed Pr-Sn samples characterized by XRD and SEM-EDS were composed of Sn and PrSn3 phases.

引用

页码：8577 / 8592

页数：16

共 71 条

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