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The anodic dissolution of uranium dioxide—II. In carbonate solutions

✍ Scribed by M.J. Nicol; C.R.S. Needes

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
357 KB
Volume
22
Category
Article
ISSN
0013-4686

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✦ Synopsis

Abetmct-The

anodic dissolution of uranium dioxide in alkaline carbonate solutions has been studied. Steady-state potentiostatic and cyclic voltammctric measurements have heen shown to be consistent with a mechanism that involves a rate-determining two-electron tran&r reaction. The presence of insulating uranium(VI) films on the surface at high anodic potentials has been confirmed by the use of ring-disc electrode measurtxnents and characterized by X-ray-diffraction analyses. The dissolution behaviour of the 6hns has been characterized and compared with that of samples of synthetic uranium trio&k and many1 carbonate.

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