Journal of Radioanalytical and Nuclear Chemistry

, Volume 182, Issue 2, pp 213–224 | Cite as

Electrochemical properties of uranium in lactones: Kinetics and electrodeposition

  • L. Martinot
  • L. Lopes
  • B. Andrianne
  • F. Gilet
  • F. Lebon
Article

Abstract

The electrochemical reductions of hexavalent and tetravalent uranium are reported in γ-butyrolactone, γ-valerolactone, γ-octanoiclactone and in the mixed solvent γ-butyrolactone/tetrahydrofuran. The transient techniques foresee either the formation of uranium dioxide or uranium metal according to a two-step reduction but the presence of these cathodic products is difficult to ascertain in controlled potential electrolysis. While mixing a lactone with tetrahydrofuran, the reversibility of the electrode reactions increases. The conducting salt noticeably determines the current yield of uranium deposition. As additional kinetic phenomena are made clear, we found that sampled polarography is the best method to gain a full understanding of the electrode mechanisms.

Keywords

Uranium Lactone Tetrahydrofuran Electrochemical Reduction Electrode Reaction 

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Copyright information

© Akadémiai Kiadó 1994

Authors and Affiliations

  • L. Martinot
    • 1
  • L. Lopes
    • 1
  • B. Andrianne
    • 1
  • F. Gilet
    • 1
  • F. Lebon
    • 1
  1. 1.Laboratory of Analytical Chemistry and Radiochemistry, B 6University of LiègeLiègeBelgium

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