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Estimation of key physical properties for LaCl3 in molten eutectic LiCl-KCl by fitting cyclic voltammetry data to a BET-based electrode reaction kinetics model
Samin, Adib1; Wang, Zhonghang2,3; Lahti, Erik1; Simpson, Michael2; Zhang, Jinsuo1
2016-07-01
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
Volume475Issue:JULYPages:149-155
AbstractUnderstanding the electrochemical properties of rare earth elements is important for developing efficient techniques for separating rare earth elements from actinides recovered during the electrodeposition process. In this study the cyclic voltammetry for lanthanum in molten LiClKCl eutectic was recorded at 773 K for different scan rates and different bulk concentrations. A model accounting for mass transport, kinetics and adsorption was applied to analyze the experimental data via performing a nonlinear least squares fit. The results of the simulation are compared against the results of a conventional analysis of the cyclic voltammograms and against the existing literature. At the scan rates used, the reduction/oxidation process is quasi-reversible. The values of diffusivities derived from simulation were larger than the ones derived commonly using equations for diffusion-limited processes. However, those equations were derived based on an assumption of reversibility. This simulation-based approach may provide a more accurate option for analyzing systems that do not exhibit reversibility. (C) 2016 Elsevier B.V. All rights reserved.
KeywordCyclic Voltammetry Rare Earth Quasi-reversible Model Adsorption
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.jnucmat.2016.04.002
Indexed BySCI
Language英语
WOS KeywordELECTROCHEMICAL-BEHAVIOR ; THERMODYNAMIC PROPERTIES ; TECHNOLOGY ; LANTHANIDE ; MORPHOLOGY ; ADSORPTION ; SUBSTRATE ; MIXTURES ; LA(III) ; SALTS
WOS Research AreaMaterials Science ; Nuclear Science & Technology ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Nuclear Science & Technology ; Mining & Mineral Processing
Funding OrganizationU.S. Department of Energy DOE-NEUP(14-6489 ; 14-6542)
WOS IDWOS:000377307300018
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20968
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Ohio State Univ, Dept Mech & Aerosp Engn, Nucl Engn Program, 201 W 19th Ave, Columbus, OH 43210 USA
2.Univ Utah, Dept Met Engn, Dept Mech & Aerosp Engn, Nucl Engn Program, Salt Lake City, UT 84112 USA
3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Nucl Engn Program,Dept Mech & Aerosp Engn, Beijing 100190, Peoples R China
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Samin, Adib,Wang, Zhonghang,Lahti, Erik,et al. Estimation of key physical properties for LaCl3 in molten eutectic LiCl-KCl by fitting cyclic voltammetry data to a BET-based electrode reaction kinetics model[J]. JOURNAL OF NUCLEAR MATERIALS,2016,475(JULY):149-155.
APA Samin, Adib,Wang, Zhonghang,Lahti, Erik,Simpson, Michael,&Zhang, Jinsuo.(2016).Estimation of key physical properties for LaCl3 in molten eutectic LiCl-KCl by fitting cyclic voltammetry data to a BET-based electrode reaction kinetics model.JOURNAL OF NUCLEAR MATERIALS,475(JULY),149-155.
MLA Samin, Adib,et al."Estimation of key physical properties for LaCl3 in molten eutectic LiCl-KCl by fitting cyclic voltammetry data to a BET-based electrode reaction kinetics model".JOURNAL OF NUCLEAR MATERIALS 475.JULY(2016):149-155.
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