Electrochemical extraction of samarium from LiCl-KCl melt by forming Sm-Zn alloys
文献类型：期刊论文
| 作者 | Liu YL(刘雅兰); Yuan LY(袁立永) ; Liu K(刘奎); Chai ZF(柴之芳); 石伟群;Liu, YL; Yuan, LY; Kui Liu; Ye, GA; Zhang, ML; He, H
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| 刊名 | ELECTROCHIMICA ACTA
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| 出版日期 | 2014 |
| 卷号 | 120页码:369-378 |
| 关键词 | Electrochemical extraction Samarium Sm-Zn alloys Molten salt |
| 英文摘要 | The co-reduction of Sm(III) and Zn(II) ions on the Mo electrode and the under potential deposition of Sm(III) ions on the liquid Zn electrode were investigated in LiCl-KCl molten salt at 873K. Cyclic voltammetry, square wave voltammetry and open-circuit chronopotentiometry techniques were employed to study the electrochemical behaviors of Sm(III), Zn(II) and Sm-Zn alloy formation. The results showed that on the inert Mo electrode the electro-reduction of Sm(III) took place in only one soluble-soluble electrochemical step Sm(III)/Sm(II), and the electrochemical step Sm(II)/Sm(0) was not observed within the electrochemical window. In contrast, the deposition potential of Sm(II)/Sm(0) shifted to the positive direction by forming SmxZny intermetallic compounds in both the co-reduction and under potential deposition process. In the co-reduction process, the signals of forming six kinds of SmxZny intermetallic compounds were observed in the high ZnCl2 containing melt, and the formation of SmxZny at about 1.56V is dominant. In the under potential deposition process, the dominant deposition process is also at about -1.6 V. The formation of Sm-Zn alloys were carried out by potentiostatic electrolysis on both the Mo electrode and liquid Zn electrode. All the Sm-Zn alloys were characterized by scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and inductively coupled plasma atomic emission spectrometer (ICP-AES). The XRD results showed that the SmxZny compound prepared on the Mo electrode in the high ZnCl2 containing melt was SmZn12, while the SmxZny compound prepared on the liquid Zn electrode was predominantly Sm2Zn17. (C) 2013 Elsevier Ltd. All rights reserved. |
| 学科主题 | Electrochemistry |
| 收录类别 | SCI |
| WOS记录号 | WOS:000333778200048 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224992]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Liu YL,Yuan LY,Liu K,et al. Electrochemical extraction of samarium from LiCl-KCl melt by forming Sm-Zn alloys[J]. ELECTROCHIMICA ACTA,2014,120:369-378. |
| APA | 刘雅兰.,袁立永.,刘奎.,柴之芳.,石伟群；Liu, YL.,...&Shi, WQ.(2014).Electrochemical extraction of samarium from LiCl-KCl melt by forming Sm-Zn alloys.ELECTROCHIMICA ACTA,120,369-378. |
| MLA | 刘雅兰,et al."Electrochemical extraction of samarium from LiCl-KCl melt by forming Sm-Zn alloys".ELECTROCHIMICA ACTA 120(2014):369-378. |
入库方式： OAI收割
来源：高能物理研究所
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