Electrolytic Extraction of Yttrium Using Recycle Liquid Gallium Electrode from molten LiCl-KCl
Electrolytic Extraction of Yttrium Using Recycle Liquid Gallium Electrode from molten LiCl-KCl
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利用回收液体镓电极从熔融 LiCl-KCl 中电解提取钇
DOI：
10.1016/j.seppur.2022.120972
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发表时间：
2022-04
影响因子：
8.6
通讯作者：
Yunhai Liu
中科院分区：
文献类型：
--
作者：
Yingcai Wang;Qian Liu;Shuang Zhang;Yuhui Liu;Youqun Wang;Ying Dai;Zhimin Dong;Zhongping Cheng;Xiaohong Cao;Yuqian Chen;Zhibin Zhang;Yunhai Liu
为利用熔盐电解技术回收乏燃料中的稀土元素钇（Y），采用循环伏安法、方波伏安法和开路计时电位法等一系列电化学测试方法，系统研究了Y（III）和Ga（III）离子在钨电极上的电化学氧化还原机理以及Y（III）离子在液态Ga电极上的电极反应，获得了Ga（III）和Y（III）离子在电极上反应的热力学和动力学参数。测得的Y（III）和Ga（III）离子的电极过程的扩散活化能（Ea）分别为30.40 kJ· mol-1和33.33 kJ· mol-1。用循环伏安法和光学阴极极化法研究了Y和Ga的电沉积过程，并计算了Ga-Y合金的热力学参数。利用开路计时电位法计算了不同温度下Ga 2 Y金属间化合物的热力学参数（Δ Hf 0（Ga 2 Y）=-279.205kJmol-1和Δ Sf 0（Ga 2 Y）=-123.9Jmol-1 K-1）.采用恒电位电解法和恒电流电解法在熔盐中从镓液电极上提取钇。为了节省液态金属镓的用量，采用最佳初始量（2.5g）。采用X射线衍射分析、扫描电子显微镜和X射线能谱对阴极沉积产物进行了表征。经ICP-AES分析，Ga电极对Y的萃取率最高可达99.39%。
To recover the rare earth element yttrium (Y) from spent fuel by molten salt electrolysis technology, the electrochemical redox mechanism of Y (III) and Ga (III) ions on tungsten electrode and the electrode reaction of Y (III) ions on the liquid Ga electrode were systematically detected by a series of electrochemical test methods, including cyclic voltammetry, square wave voltammetry and open circuit chronopotentiometry, etc. The thermodynamic and kinetic parameters of the electrode process on Ga (III) and Y (III) ions were obtained in this work. The measured diffusion activation energies (E a) of electrode process for Y (III) and Ga (III) ions were calculated as 30.40 kJ· mol− 1 and 33.33 kJ· mol− 1. The electrodeposition process of Y and Ga was studied by CV and OCP, and thermodynamic parameters of Ga-Y alloys formed were also calculated. Thermodynamic parameters of Ga 2 Y intermetallic compounds were calculated based on open circuit chronopotentiometry at different temperatures (Δ H f 0 (Ga 2 Y)=-279.205 kJ m o l-1 and Δ S f 0 (G a 2 Y)=-123.9 J m o l-1 K-1). Yttrium was extracted by potentiostatic electrolysis and galvanostatic electrolysis on liquid Ga electrode in molten salts. In order to save the amount of liquid metal gallium, the best initial (2.5 g) was used. The cathodic deposition Products were characterized by X-ray diffraction analysis and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. According to ICP-AES analysis, the extraction rate of Y on Ga electrode can reach a maximum of 99.39%.
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影响因子：
6.6
作者：
T. Iida;T. Nohira;Y. Ito
通讯作者：
T. Iida;T. Nohira;Y. Ito
LiCl-KCl共晶中W和Zn电极上Gd3电还原的比较研究
影响因子：
3.9
作者：
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Shi, Wei-Qun
DOI：
10.1515/zna-2008-1-218
发表时间：
2008-02
期刊：
Zeitschrift für Naturforschung A
影响因子：
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作者：
P. Masset;C. Apostolidis;R. Malmbeck;J. Rebizant;J. Serp;J. Glatz
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P. Masset;C. Apostolidis;R. Malmbeck;J. Rebizant;J. Serp;J. Glatz
DOI：
10.1007/s12613-020-2112-2
发表时间：
2020-10
期刊：
International Journal of Minerals, Metallurgy and Materials
影响因子：
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作者：
Tai-qi Yin;Lang Chen;Yun Xue;Yang-hai Zheng;Xuepeng Wang;Yong-De Yan;Milin Zhang;Guiling Wang
通讯作者：
Tai-qi Yin;Lang Chen;Yun Xue;Yang-hai Zheng;Xuepeng Wang;Yong-De Yan;Milin Zhang;Guiling Wang
DOI：
10.1016/j.energy.2011.08.011
发表时间：
2011-10
期刊：
Fuel and Energy Abstracts
影响因子：
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作者：
Laurence Stamford;A. Azapagic
通讯作者：
Laurence Stamford;A. Azapagic