کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6602482 | 1424076 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical deposition of alkaline-earth elements (Sr and Ba) from LiCl-KCl-SrCl2-BaCl2 solution using a liquid bismuth electrode
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrochemical deposition of alkaline-earth elements (Sr and Ba) from LiCl-KCl-SrCl2-BaCl2 solution using a liquid bismuth electrode Electrochemical deposition of alkaline-earth elements (Sr and Ba) from LiCl-KCl-SrCl2-BaCl2 solution using a liquid bismuth electrode](/preview/png/6602482.png)
چکیده انگلیسی
Electrochemical deposition of Sr and Ba into liquid Bi metal was investigated in LiCl-KCl-SrCl2-BaCl2 electrolytes at 500â¯Â°C as a means to separate stable alkaline-earth ions from the molten salts (eutectic LiCl-KCl) utilized for recycling used nuclear fuel, by leveraging the strong chemical interactions between alkaline-earth metals and liquid Bi. The liquid Bi electrodes were subjected to cathodic discharge up to 270â¯Câ¯g-1â¯at a constant current density of 50â¯mAâ¯cmâ2 in eutectic LiCl-KCl with the addition of 5â¯mol% total of SrCl2 and/or BaCl2. The use of Bi resulted in complex electrode reactions, leading to co-deposition of Sr (2.0-6.5â¯mol%), Ba (4.1-12.8â¯mol%), and Li (5.9-16.2â¯mol%), and coulombic efficiencies of 63-67% were achieved. The observed co-deposition was also supported via thermodynamic analyses of electrode potentials by incorporating the experimentally determined activity values of each alkali/alkaline-earth metal in Bi. The results of this work suggest that alkaline-earth fission products accumulated in molten salts (Sr2+ and Ba2+) can be recovered into liquid Bi by electrochemical separation, which could be employed as a critical step for recycling the process salt (LiCl-KCl) in order to minimize the generation of additional nuclear wastes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 281, 10 August 2018, Pages 810-815
Journal: Electrochimica Acta - Volume 281, 10 August 2018, Pages 810-815
نویسندگان
Timothy Lichtenstein, Thomas P. Nigl, Nathan D. Smith, Hojong Kim,