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Wang Z, Shen Y, Zhang Y, Liu Y, Dong Z, Quan M, Yu F, Cao X, Zhang Z, Wang Y, Liu Y. Electrochemical separation of fission element samarium on lead electrodes from KCl–LiCl molten salts and the kinetic research of the process. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08815-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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The effect of the cathode material nature on electroextraction of lanthanum in molten NaCl-2CsCl eutectic. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wang Y, Liu Q, Zhang S, Liu Y, Wang Y, Dai Y, Dong Z, Cheng Z, Cao X, Chen Y, Zhang Z, Liu Y. Electrolytic extraction of yttrium using recycle liquid gallium electrode from molten LiCl-KCl. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120972] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Electrochemical co-deposition of Erbium and Ytterbium in molten LiF-CaF2: An original way for lanthanides extraction on inert electrode. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.109977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Electroextraction and thermochemistry of fission element gadolinium on plumbum electrode in molten salt. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119413] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Li M, Zhang Y, Li H, Jiang H, Han W, Sun Y. Electrochemical formation of Mg–La–Mn alloys by coreduction of Mg(II), La(III) and Mn(II) in LiCl+KCl molten salts. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2020.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Han W, Li W, Li M, Yang Z, Chen L, Zhang Y, Meng Y, Li Q, Sun Y. Electrochemical extraction of metallic Y using solid and liquid double cathodes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136233] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Jee YT, Park M, Cho S, Yun JI. Selective morphological analysis of cerium metal in electrodeposit recovered from molten LiCl-KCl eutectic by radiography and computed tomography. Sci Rep 2019; 9:1346. [PMID: 30718707 PMCID: PMC6361957 DOI: 10.1038/s41598-018-38022-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 12/17/2018] [Indexed: 11/09/2022] Open
Abstract
This paper presents, for the first time, a study to analyze the surface morphology of metal extracted from a high temperature molten salt medium in the electrodeposit using x-ray radiography and computed tomography. Widely used methods such as scanning electron microscopy and inductively coupled plasma-optical emission spectrometry/mass spectrometry are destructive and the related processes are often subject to the air condition. The x-ray imaging can provide rich information of the target sample in a non-destructive way without invoking hydrolysis or oxidation of a hygroscopic sample. In this study, the x-ray imaging conditions were optimized as following: tube voltage at 100 kVp and the current exposure time product at 8.8 mAs in our in-house x-ray imaging system. LiCl-KCl and cerium metals used in this work produced substantially distinguishable contrasts in the radiography due to their distinctive attenuation characteristics, and this difference was well quantified in the histograms of brightness. Electrodeposits obtained by chronoamperometry and chronopotentiometry demonstrated a completely different behavior of electrodeposition even at the same applied charge. In particular, computed tomography and volumetric analysis clearly showed the structural and morphological dissimilarity. The structure of cerium metal in the electrodeposit was successfully separated from the chloride salt structure in the CT image by an image segmentation process.
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Affiliation(s)
- Young Taek Jee
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Miran Park
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seungryong Cho
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Jong-Il Yun
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Wang Y, Li M, Zhang M, Han W, Jiang T, Yan Y. Electrochemical deposition of praseodymium (III) and copper (II) and extraction of praseodymium on copper electrode in LiCl-KCl melts. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4080-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Electrochemical co-reduction of Y(III) and Zn(II) and extraction of yttrium on Zn electrode in LiCl-KCl eutectic melts. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-3956-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Han W, Li Z, Li M, Gao Y, Yang X, Zhang M, Sun Y. Electrolytic extraction of dysprosium and thermodynamic evaluation of Cu-Dy intermetallic compound in eutectic LiCl-KCl. RSC Adv 2018; 8:8118-8129. [PMID: 35542024 PMCID: PMC9078506 DOI: 10.1039/c7ra13423a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/05/2018] [Indexed: 12/03/2022] Open
Abstract
The electrochemical reduction of dysprosium(iii) was studied on W and Cu electrodes in eutectic LiCl–KCl by transient electrochemical methods. Cyclic voltammogram and current reversal chronopotentiogram results demonstrated that dysprosium(iii) was directly reduced to dysprosium (0) on the W electrode through a single-step process with the transfer of three electrons. Electrochemical measurements on the Cu electrode showed that different Cu–Dy intermetallics are formed. Moreover, the thermodynamic properties of Cu–Dy intermetallic compounds were estimated by open circuit chronopotentiometry in a temperature range of 773–863 K. Using the linear polarization method, the exchange current density (j0) of dysprosium in eutectic LiCl–KCl on the Cu electrode was estimated, and the temperature dependence of j0 was studied to estimate the activation energies associated with Dy(iii)/Cu5Dy and Dy(iii)/Cu9/2Dy couples. In addition, potentiostatic electrolysis was conducted to extract dysprosium on the Cu electrode, and five Cu–Dy intermetallic compounds, CuDy, Cu2Dy, Cu9/2Dy, Cu5Dy and Cu0.99Dy0.01 were identified by X-ray diffraction, scanning electron microscopy and energy dispersive spectrometry. Meanwhile, the change of dysprosium(iii) concentration was monitored using inductively coupled plasma-atomic emission spectrometry, and the maximum extraction efficiency of dysprosium was found to reach 99.2%. The electrochemical reduction of dysprosium(iii) was studied on W and Cu electrodes in eutectic LiCl–KCl by transient electrochemical methods.![]()
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Affiliation(s)
- Wei Han
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University Harbin 150001 China +86 451 8253 3026 +86 451 8256 9890.,Institute of Nuclear Energy and Safety, Harbin Engineering University Harbin 150001 China
| | - Zhuyao Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University Harbin 150001 China +86 451 8253 3026 +86 451 8256 9890
| | - Mei Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University Harbin 150001 China +86 451 8253 3026 +86 451 8256 9890.,Institute of Nuclear Energy and Safety, Harbin Engineering University Harbin 150001 China
| | - Yinyi Gao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University Harbin 150001 China +86 451 8253 3026 +86 451 8256 9890.,Institute of Nuclear Energy and Safety, Harbin Engineering University Harbin 150001 China
| | - Xiaoguang Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University Harbin 150001 China +86 451 8253 3026 +86 451 8256 9890.,Institute of Nuclear Energy and Safety, Harbin Engineering University Harbin 150001 China
| | - Milin Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University Harbin 150001 China +86 451 8253 3026 +86 451 8256 9890.,Institute of Nuclear Energy and Safety, Harbin Engineering University Harbin 150001 China
| | - Yang Sun
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University Harbin 150001 China +86 451 8253 3026 +86 451 8256 9890.,Institute of Nuclear Energy and Safety, Harbin Engineering University Harbin 150001 China
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Li M, Liu B, Ji N, Sun Y, Han W, Jiang T, Peng S, Yan Y, Zhang M. Electrochemical extracting variable valence ytterbium from LiCl–KCl–YbCl3 melt on Cu electrode. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.02.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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