4.5 Article

Carbon anode with repeatable use of LiCl molten salt for electrolytic reduction in pyroprocessing

Journal

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 310, Issue 1, Pages 463-467

Publisher

SPRINGER
DOI: 10.1007/s10967-016-4786-5

Keywords

Spent oxide fuels; Pyroprocessing; Electrolytic reduction; Anode; Carbon

Funding

  1. National Research Foundation of Korea (NRF) - Korea government (MISP) [2012M2A8A5025697]
  2. National Research Foundation of Korea [2012M2A8A5025697] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Carbon was investigated as an anode material for electrolytic reduction in pyroprocessing. UO2 was successfully reduced to U repeatedly using the carbon anode and the LiCl molten salt could be reused. While reusing the molten salt with a carbon anode is difficult under normal conditions (3 V) due to Li2CO3 formation, applying a high voltage (> 10 V) and thus high current with Cl-2 evolution enabled reuse of the LiCl molten salt to keep low Li2CO3 concentration.

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