期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 167, 期 12, 页码 -出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1945-7111/abb0f4
关键词
LiCl-KCl; Activity coefficient; Exchange current density; Electrodeposition
资金
- National Science Fund for Distinguished Young Scholars [21925603]
- Natural Science Foundation of China [21790373, 51604252]
- Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials [GXYSOF1815]
- Ph. D Student Research and Innovation Fund of the Fundamental Research Funds for the Central Universities [3072019GIP1011]
Electrochemical behaviors of lanthanide (i.e. La, Ce, Pr and Nd) chlorides in LiCl-KCl melt were demonstrated via cyclic voltammetry (CV) and open circuit potential (OCP) techniques at temperatures from 723 K to 873 K. An electrochemical galvanostatic intermittent titration technique (GITT) was performed to obtain the thermodynamic data of lanthanide (Ln) on liquid bismuth electrode. The relationship between activity coefficient and temperature were determined. Galvanostatic pulse (GP) and electrochemical impedance spectroscopy (EIS) as the transient measurements were performed to investigate the interfacial processes of Ln(III) on liquid Bi electrode. The exchange current densities j(0)of Ln(III)/Ln were determined by fitting and equivalent circuits, that showed the linear relationship with temperature. In addition, the electrodepositions of La and Ce on liquid Bi electrodes were discussed on the formation of alloys. The products of phase composition and microstructure were conducted by XRD and SEM-EDS, respectively.
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