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Influence of plutonyl ion on electrochemical characterization of zirconium in plutonium nitrate solutions

Nakahara, Masaumi; Sano, Yuichi  ; Nomura, Kazunori  

To evaluate the corrosion behavior of a Pu evaporator made from Zr in a reprocessing plant, the influence of PuO$$_{2}$$$$^{2+}$$ was investigated with Pu nitrate solutions in electrochemical experiments. The maximum open circuit potential of Zr in the Pu nitrate solution was approximately 1 V in the Pu nitrate solution containing 7 mol dm$$^{-3}$$ HNO$$_{3}$$. However, there were no significant changes at high PuO$$_{2}$$$$^{2+}$$ concentrations, and Zr showed high corrosion resistance under our experimental conditions.



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Category:Chemistry, Inorganic & Nuclear



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