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TiN Anode for Electrolytic Reduction of UO2 in Pyroprocessing

TiN 양극을 이용한 파이로프로세싱 UO2 전해환원

  • Received : 2015.05.04
  • Accepted : 2015.07.13
  • Published : 2015.09.30

Abstract

Developing novel anode materials to replace the Pt anode currently used in electrolytic reduction is an important issue on pyroprocessing. In this study, the electrochemical behavior of TiN was investigated as the conductive ceramic anode which evolves O2 gas during the reaction. The feasibility and stability of the TiN anode was examined during the electrolytic reduction of UO2. The TiN anode could electrochemically convert UO2 to metallic U in a LiCl–Li2O molten salt electrolyte. No oxidation of TiN was observed during the reaction; however, the formation of voids in the bulk section appeared to limit the lifetime of the TiN anode.

Keywords

Pyroprocessing;Electrolytic reduction;UO2;Anode;TiN

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  2. A preliminary study of pilot-scale electrolytic reduction of UO 2 using a graphite anode 2017, https://doi.org/10.1016/j.net.2017.05.004
  3. Review—Metallic Lithium and the Reduction of Actinide Oxides vol.164, pp.8, 2017, https://doi.org/10.1149/2.0251708jes
  4. Electrochemical properties of noble metal anodes for electrolytic reduction of uranium oxide vol.311, pp.1, 2017, https://doi.org/10.1007/s10967-016-5107-8