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Voltammetric Analysis of Mixtures of Molten Eutectic LiCl-KCl Containing LaCl3 and ThCl4 for Concentration and Diffusion Coefficient Measurement
Wang, Zhong-hang1,2,3; Rappleye, Deyin1; Simpson, Michael F.1
2016-02-10
发表期刊ELECTROCHIMICA ACTA
ISSN0013-4686
卷号191期号:FEB页码:29-43
摘要

Several electrochemical techniques, including cyclic voltammetry (CV), chronopotentiometry-open circuit potential (CP-OCP), chronoamperometry (CA) and normal pulse voltammetry (NPV) were applied to the eutectic LiCl-KCl melt containing LaCl3 and ThCl4 at 773K. The dependence of diffusion coefficient of La(III) on concentration of LaCl3 was investigated by using CV, CP and CA. As the concentration of LaCl3 increases, the D-La(III) value obtained from CV gradually decreases, while the values derived from CA and CP exhibit a dome-shaped variation trend. In the LiCl-KCl-LaCl3-ThCl4 system, the diffusion coefficients of La(III) and Th(IV) are both approximately constant regardless of changes in the composition of LaCl3 and ThCl4. Concentration correlations were developed for LaCl3 and ThCl4 using the normalized CV peak heights in addition to the diffusion-limited relationships for CV, CA and NPV. NPV was found to be superior for the concentration prediction over the range studied in this work. (C) 2016 Elsevier Ltd. All rights reserved.

关键词Molten Salt Voltammetry Nuclear Fuel Reprocessing Electrorefining
文章类型Article
学科领域Electrochemistry ; Electrochemistry
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.electacta.2016.01.021
URL查看原文
收录类别SCI
语种英语
关键词[WOS]Electrochemical-behavior ; Salt ; Electrode ; Aluminum ; Tungsten ; La(Iii)
WOS研究方向Electrochemistry
WOS类目Electrochemistry
项目资助者Department of Energy's Nuclear Energy University Program ; China Scholarship Council (CSC) of Zhonghang Wang(201404910406)
WOS记录号WOS:000371143200005
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20673
专题研究所(批量导入)
通讯作者Simpson, Michael F.
作者单位1.Univ Utah, Dept Met Engn, Salt Lake City, UT 84112 USA
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Wang, Zhong-hang,Rappleye, Deyin,Simpson, Michael F.. Voltammetric Analysis of Mixtures of Molten Eutectic LiCl-KCl Containing LaCl3 and ThCl4 for Concentration and Diffusion Coefficient Measurement[J]. ELECTROCHIMICA ACTA,2016,191(FEB):29-43.
APA Wang, Zhong-hang,Rappleye, Deyin,&Simpson, Michael F..(2016).Voltammetric Analysis of Mixtures of Molten Eutectic LiCl-KCl Containing LaCl3 and ThCl4 for Concentration and Diffusion Coefficient Measurement.ELECTROCHIMICA ACTA,191(FEB),29-43.
MLA Wang, Zhong-hang,et al."Voltammetric Analysis of Mixtures of Molten Eutectic LiCl-KCl Containing LaCl3 and ThCl4 for Concentration and Diffusion Coefficient Measurement".ELECTROCHIMICA ACTA 191.FEB(2016):29-43.
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