Electrochemical Properties of Uranium on the Liquid Gallium Electrode in LiCl-KCl Eutectic
文献类型：期刊论文
| 作者 | Liu K(刘奎); Liu, K; Shi WQ(石伟群) ; Chai ZF(柴之芳); Feng YX(冯一潇); Liu YL(刘雅兰); Pang JW(庞敬雯); Tang, HB; Shi, WQ; Chai, ZF
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| 刊名 | JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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| 出版日期 | 2016 |
| 卷号 | 163期号:9页码:D554-D561 |
| DOI | 10.1149/2.1191609jes |
| 通讯作者 | 石伟群 |
| 英文摘要 | This work presents a study of electrochemistry of uranium on a liquid gallium in LiCl-KCl eutectic by applying a series of electrochemical techniques. The electrochemical window of the Ga electrode in LiCl-KCl eutectic is about -1.40 to -0.35 V vs. Ag/AgCl. The reduction of U(III) on liquid gallium starts at -0.86 V and is a one step process with the transfer of three electrons. The co-reductive cyclic voltammograms of U(III) and Ga(III) present a couple of sharp redox peaks at about -0.95 and -0.84 V, corresponding to the formation and dissolution of the intermetallic compound UGa3. In addition, the reduction of Ga(III) in LiCl-KCl melt is a two-step process: Ga(III). Ga(I). Ga. The activity coefficient and solubility of U in liquid Ga at the temperature range from 673 to 823 K were determined by coulometric titration and open circuit potential respectively. The Gibbs free energy for the formation of UGa3 was also calculated. The intermetallic compound UGa3 was deposited by potentiostatic electrolysis at -1.0 V in the LiCl-KCl -GaCl3-UCl3 and LiCl-KCl-UCl3 melt on solid W and liquid Ga electrodes at 773 K, respectively. The electrolysis efficiency is about 97% based on the ICP result. Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy (SEM-EDS) and X-ray diffraction (XRD) characterizations further identified the formation of UGa3. (C) 2016 The Electrochemical Society. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000388988100076 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/261059]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_多学科研究中心 |
| 通讯作者 | Shi, Wei-Qun |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Liu K,Liu, K,Shi WQ,et al. Electrochemical Properties of Uranium on the Liquid Gallium Electrode in LiCl-KCl Eutectic[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2016,163(9):D554-D561. |
| APA | 刘奎.,Liu, K.,石伟群.,柴之芳.,冯一潇.,...&Chai, Zhi-Fang.(2016).Electrochemical Properties of Uranium on the Liquid Gallium Electrode in LiCl-KCl Eutectic.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,163(9),D554-D561. |
| MLA | 刘奎,et al."Electrochemical Properties of Uranium on the Liquid Gallium Electrode in LiCl-KCl Eutectic".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 163.9(2016):D554-D561. |
入库方式： OAI收割
来源：高能物理研究所
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