Study on Electrochemical Behavior of Y(Ⅲ) in Molten YF3-LiF AITranslate
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The electrochemical reduction process of Y(Ⅲ) and the cathode behavior of Y2O3 in YF3-LiF molten salt system were studied by cyclic voltammetry.The results indicate that the reduction potential of Y(Ⅲ) on molybdenum electrode is-0.95 V(vs.Pt) in YF3-LiF molten salt system, and the reaction is a quasi reversible reaction that transfers three electrons in one step.The redox peak does not change with the scanning speed, which indicates that the reaction is a quasi reversible reaction with great reversibility.The peak current Ip is linearly related to v1/2,so the reaction is controlled by diffusion with diffusion coefficient of 3.626 4×10-8 cm2/s.The addition of Y2O3 into molten salt contributes to reducing reduction potential of Y(Ⅲ) and has a certain depolarization effect.There are three different reduction current peaks in the reduction process of Y(Ⅲ) on the iron electrode.Yttrium-iron alloy phase is formed by underpotential deposition and yttrium metal is formed by electroreduction.
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Basic Information:
DOI：
Chinese Library Classification Number:O646.541[理学—物理化学]
Citation Information:
The electrochemical reduction process of Y(Ⅲ) and the cathode behavior of Y2O3 in YF3-LiF molten salt system were studied by cyclic voltammetry.The results indicate that the reduction potential of Y(Ⅲ) on molybdenum electrode is-0.95 V(vs.Pt) in YF3-LiF molten salt system, and the reaction is a quasi reversible reaction that transfers three electrons in one step.The redox peak does not change with the scanning speed, which indicates that the reaction is a quasi reversible reaction with great reversibility.The peak current Ip is linearly related to v1/2,so the reaction is controlled by diffusion with diffusion coefficient of 3.626 4×10-8 cm2/s.The addition of Y2O3 into molten salt contributes to reducing reduction potential of Y(Ⅲ) and has a certain depolarization effect.There are three different reduction current peaks in the reduction process of Y(Ⅲ) on the iron electrode.Yttrium-iron alloy phase is formed by underpotential deposition and yttrium metal is formed by electroreduction.
quote
| GB/T 7714-2015 | [1] HUANG Hai-tao, YU Bing, YAN Qi-cao, et al. Study on Electrochemical Behavior of Y(Ⅲ) in Molten YF3-LiF[J]. Rare Metals and Cemented Carbides, 2021(3): 5-8. |
| MLA | [1] HUANG Hai-tao, et al., "Study on Electrochemical Behavior of Y(Ⅲ) in Molten YF3-LiF." Rare Metals and Cemented Carbides, no. 3, 2021, pp. 5-8. |
| APA | [1] HUANG Hai-tao, YU Bing, YAN Qi-cao, CHEN Guo-hua, ZHANG Quan-jun, & LIU Yu-bao. (2021). Study on Electrochemical Behavior of Y(Ⅲ) in Molten YF3-LiF. Rare Metals and Cemented Carbides(3), 5-8. |
| IEEE | [1] HUANG Hai-tao, YU Bing, YAN Qi-cao, CHEN Guo-hua, ZHANG Quan-jun, and LIU Yu-bao, "Study on Electrochemical Behavior of Y(Ⅲ) in Molten YF3-LiF," Rare Metals and Cemented Carbides, no. 3, pp. 5-8, 2021. keywords: {yttrium oxide;oxidoreduction;yttrium-iron alloy;cyclic voltammetry;diffusion control} |