| 铟在氯化物熔盐中的氧化还原行为 |
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| 引用本文： | 徐亮,熊延杭,孟金伟,王家保,华中胜,田勇攀,尤静林,赵卓. 铟在氯化物熔盐中的氧化还原行为[J]. 中国有色金属学会会刊, 2021, 31(5): 1496-1505. DOI: 10.1016/S1003-6326(21)65593-0 |
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| 作者姓名： | 徐亮 熊延杭 孟金伟 王家保 华中胜 田勇攀 尤静林 赵卓 |
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| 摘 要： | 采用循环伏安、计时电位等电化学分析测试手段对450℃下LiCl?KCl共融盐中In(Ⅲ)在惰性钼电极上的电化学行为进行系统研究.结果表明:In(Ⅲ)在熔盐中的还原是一个两步过程,电极反应In(Ⅲ)/In(I)和In(I)/In分别发生在?0.4 V和?0.8 V(vs Ag/AgCl).结合还原过程电子转移数的理论计算...
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| 关 键 词： | 铟离子 氧化还原行为 LiCl-KCl共融盐 废弃液晶显示屏 资源回收 |
| 收稿时间： | 2020-05-15 |
Redox behavior of indium in molten chlorides |
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| Liang XU,Yan-hang XIONG,Jin-wei MENG,Jia-bao WANG,Zhong-sheng HUA,Yong-pan TIAN,Jing-lin YOU,Zhuo ZHAO. Redox behavior of indium in molten chlorides[J]. Transactions of Nonferrous Metals Society of China, 2021, 31(5): 1496-1505. DOI: 10.1016/S1003-6326(21)65593-0 |
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| Authors: | Liang XU Yan-hang XIONG Jin-wei MENG Jia-bao WANG Zhong-sheng HUA Yong-pan TIAN Jing-lin YOU Zhuo ZHAO |
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| Affiliation: | 1. Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling, Anhui University of Technology, Ma′anshan 243032, China;2. School of Metallurgical Engineering, Anhui University of Technology, Ma′anshan 243032, China;3. State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, China |
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| Abstract: | An electrochemical study on the redox behavior of indium in the eutectic LiCl-KCl system at 450 °C was carried out with the transient techniques of cyclic voltammetry and chronopotentiometry on an inert molybdenum electrode. The reduction of In(III) was found to be a two-step process involving In(III)/In(I) and In(I)/In couples at the potentials of about ?0.4 and ?0.8 V versus Ag/AgCl, respectively. The redox mechanism was further confirmed by the theoretical evaluation of the number of transferred electrons based on cyclic voltammetry and characterizations of the precipitates generated by the potentiostatic electrolysis. The diffusion coefficients of indium ions in the eutectic LiCl-KCl melt at 450 °C were estimated by cyclic voltammetry and chronopotentiometry. The results obtained through the two methods are in fair agreement, delivering an average diffusion coefficient of approximately 1.8×10?5 cm2/s for In(III), and 1.4×10?4 cm2/s for In(I). |
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| Keywords: | indium ions redox behavior eutectic LiCl-KCl melt end-of-life LCDs resources recycling |
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