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DOE OSTI · 1767878

Rapid dissolution of PuO 2 analytical samples using mediated electrochemical oxidation

Woods, Michael E.·Benny, Paul D.·Unger, Aaron J.·Phongikaroon, Supathorn·Myhre, Kristian G.
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Abstract

Current methods for quantitative dissolution of solid PuO 2 involve lengthy dissolution times. The adaptation of mediated electrochemical oxidation, which uses an electrochemically produced oxidizing agent to catalyze dissolution, has been explored for radiochemical analysis scale dissolutions of PuO 2 . The effects of temperature, electrode material, and electrocatalyst on the dissolution kinetics were explored. Under conditions examined in this study, complete dissolution of tens of milligrams of solid PuO 2 can be achieved in less than 1 h at ambient temperature. Overall, this methodology could be adapted to dissolve other metal oxides.

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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRYmediated electrochemical oxidationplutonium oxideplutonium-238

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Woods, Michael E., Benny, Paul D., Unger, Aaron J., Phongikaroon, Supathorn, Myhre, Kristian G.. 2021-01-20. Rapid dissolution of PuO 2 analytical samples using mediated electrochemical oxidation. https://doi.org/10.1007/s10967-020-07577-9

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