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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
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume191Issue:FEBPages:29-43
Abstract

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.

KeywordMolten Salt Voltammetry Nuclear Fuel Reprocessing Electrorefining
SubtypeArticle
Subject AreaElectrochemistry ; Electrochemistry
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.electacta.2016.01.021
URL查看原文
Indexed BySCI
Language英语
WOS KeywordElectrochemical-behavior ; Salt ; Electrode ; Aluminum ; Tungsten ; La(Iii)
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
Funding OrganizationDepartment of Energy's Nuclear Energy University Program ; China Scholarship Council (CSC) of Zhonghang Wang(201404910406)
WOS IDWOS:000371143200005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20673
Collection研究所(批量导入)
Corresponding AuthorSimpson, Michael F.
Affiliation1.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
Recommended Citation
GB/T 7714
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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