Speaker
Dr
Vladimir Krotov
(Institute of High-Temperature Electrochemistry UB RAS)
Description
The cathode crystalline UO2–ThO2 (30-50 mol/ %), UO2-PuO2 (6, 42 and 72 mol. %), UO2-ZrO2 (0.1 – 98 mol. %) deposits, were formed. The electrolyte - melt: (NaCl-KCl)-UO2Cl2-MeCl4, where MeCl4 = ThCl4, PuCl4, ZrCl4. The influence of the MeCl4 concentration in the (NaCl–KCl)–UO2Cl2–MeCl4 melt, the initial electrolysis current density, the temperature, and the electrolysis duration on the average MeO2 concentration in the UO2– MeO2 deposits was studied. The MeO2 fraction in the cathode UO2– MeO2 deposits regularly decreased as the MeCl4 concentration decreased and the current density and electrolysis duration increased. The electrolytic of UO2– MeO2 cathode crystalline deposit are formed through simultaneous electrolytic reduction of UO22+ ions to UO2 and the exchange between the UO2 and Me4+ ions present in the molten (NaCl-KCl)-UO2Cl2-MeCl4 electrolyte.
Country/Int. Organization
Russia/Institute of High-Temperature Electrochemistry UB RAS
Primary author
Dr
Vladimir Krotov
(Institute of High-Temperature Electrochemistry UB RAS)
Co-author
Dr
Evgeniy Filatov
(Institute of High-Temperature Electrochemistry UB RAS)
