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논문 기본 정보

자료유형
학술대회자료
저자정보
Park, Sung-Bin (Korea Atomic Energy Research Institute) Park, Byung-Heung (Korea Atomic Energy Research Institute) Seo, Chung-Seok (Korea Atomic Energy Research Institute) Jung, Ki-Jung (Korea Atomic Energy Research Institute) Park, Seong-Won (Korea Atomic Energy Research Institute)
저널정보
한국방사성폐기물학회 한국방사성폐기물학회 Workshop 한국방사성폐기물학회 2005년도 Proceedings of The 6th korea-china joint workshop on nuclear waste management
발행연도
2005.1
수록면
39 - 50 (12page)

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Electrolytic reduction of uranium oxide to uranium metal was studied in a $LiCl-Li_{2}O$ molten salt system. The reduction mechanism of the uranium oxide to a uranium metal has been studied by means of a cyclic voltammetry. Effects of the layer thickness of the uranium oxide and the thickness of the MgO on the overpotential of the cathode and the anode were investigated by means of a chronopotentiometry. From the cyclic voltamograms, the decomposition potentials of the metal oxides are the determining factors for the mechanism of the reduction of the uranium oxide in a $LiCl-3\;wt{\%} Li_{2}O$ molten salt and the two mechanisms of the electrolytic reduction were considered with regards to the applied cathode potential. In the chronopotentiograms, the exchange current and the transfer coefficient based on the Tafel behavior were obtained with regard to the layer thickness of the uranium oxide which is loaded into the porous MgO membrane and the thickness of the porous MgO membrane. The maximum allowable currents for the changes of the layer thickness of the uranium oxide and the thickness of the MgO membrane were also obtained from the limiting potential which is the decomposition potential of LiCl.

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