کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1315542 | 976041 | 2009 | 6 صفحه PDF | دانلود رایگان |
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.
Journal: Journal of Fluorine Chemistry - Volume 130, Issue 1, January 2009, Pages 102–107