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http://dx.doi.org/10.5516/NET.2010.42.2.183

AN EXPERIMENTAL STUDY ON AN ELECTROCHEMICAL REDUCTION OF AN OXIDE MIXTURE IN THE ADVANCED SPENT-FUEL CONDITIONING PROCESS  

Jeong, Sang-Mun (Nuclear Fuel Cycle Development Group, Korea Atomic Energy Research Institute)
Park, Byung-Heung (Nuclear Fuel Cycle Development Group, Korea Atomic Energy Research Institute)
Hur, Jin-Mok (Nuclear Fuel Cycle Development Group, Korea Atomic Energy Research Institute)
Seo, Chung-Seok (Nuclear Fuel Cycle Development Group, Korea Atomic Energy Research Institute)
Lee, Han-Soo (Nuclear Fuel Cycle Development Group, Korea Atomic Energy Research Institute)
Song, Kee-Chan (Nuclear Fuel Cycle Development Group, Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.42, no.2, 2010 , pp. 183-192 More about this Journal
Abstract
An electrochemical reduction of a mixture of metal oxides was conducted in a LiCl molten salt containing 3 wt% $Li_2O$ at $650^{\circ}C$. The oxide reduction was carried out by applying a current to an electrolysis cell, and the $Li_2O$ concentration was analyzed during each run. The concentration of $Li_2O$ in the electrolyte bulk phase gradually decreases according to Faraday's law due to a slow diffusion of the $O^{2-}$ ions. A hindrance effect of the unreduced metal oxides was observed for the reduction of the uranium oxide. Cs, Sr, and Ba of high heat-load fission products were diffused into and accumulated in the salt phase as predicted with thermodynamic consideration.
Keywords
ACP; Pyroprocessing; Electrochemical Reduction; LiCl-$Li_2O$ Molten Salt; Diffusion;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 5
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