Selected topics of molten fluorides in the field of nuclear engineering
Selected topics of molten fluorides in the field of nuclear engineering
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DOI：
10.1016/j.jfluchem.2008.07.016
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发表时间：
2009-01-01
影响因子：
1.9
通讯作者：
Ito, Yasuhiko
中科院分区：
文献类型：
--
作者：
Goto, Takuya;Nohira, Toshiyuki;Ito, Yasuhiko
提出了一种新的氟熔体参比电极，以及一种利用氟-氯熔体混合处理废锆废弃物的新概念。在LiF-KF-NaF中，Au2Na在Au丝上的电化学生成表明了反应的平衡电位：2Au + Na+ + e(-) = 0.535 V下的Au2Na vs. 773 K下LiF-NaF-KF共晶熔体中K+/K。该（Au2Na + Au）电极在重现性、稳定性和可逆性方面表现出优良的参比电极特性。LiF-LiCl-KCl熔体提高了锆的溶解和沉积速度，这使我们能够开发出一种新的废锆净化工艺。实验结果表明，利用life - licl - kcl熔体进行电化学净化达到了一定的清除率。(C) 2008 Elsevier B.V.版权所有
A new reference electrode in fluoride melts and a new concept for a spent zircaloy wastes treatment using a mixture of fluoride and chloride melt are proposed. Electrochemical formation of Au2Na on Au wire in a LiF-KF-NaF shows the equilibrium potential of the reaction: 2Au + Na+ + e(-) = Au2Na at 0.535 V vs. K+/K in LiF-NaF-KF eutectic melt at 773 K. The (Au2Na + Au) electrode demonstrates excellent characteristics as a reference electrode in terms of reproducibility, stability and reversibility. LiF-LiCl-KCl melt enhances dissolution and deposition rate of zirconium, which enable us to develop a new decontamination process for a spent zircaloy. Electrochemical decontamination using LiF-LiCl-KCl melt is experimentally achieved a clearance level. (C) 2008 Elsevier B.V. All rights reserved.