Abstract
The electroreduction of UO2 during pyroprocessing is counterbalanced by the oxidation of dissolved oxygen ions typically at a platinum anode in molten LiCl-Li2O to form oxygen gas. Platinum and previously explored alternative anodes have been found to corrode concurrently with the evolution of oxygen which poses an economic challenge for implementing pyroprocessing industrially. Ruthenium and iridium metal were investigated as potential anodes for the electroreduction step of pyroprocessing. Electrochemical data for the tested anodes will be presented. Additionally, extensive surface characterization including X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy will be reported for the tested anodes.This work was performed under ARPA-e grant DE-AR0001697. XPS was purchased under NSF MRI award 2117820. C.M. is supported by DOE Fellowship under award DE-NE0009105.
Published Version
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