Related Experiment Video
Updated: Jul 5, 2026

Protocol of Electrochemical Test and Characterization of Aprotic Li-O2 Battery
Published on: July 12, 2016
Reaction of plutonium dioxide with water: formation and properties of PuO(2+x)
111003 Willow Bend Drive, Waco, TX 76712, USA. Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Abstract:
Results show that PuO(2+x), a high-composition (x = 0.27) phase containing Pu(VI), is the stable binary oxide in air. This nonstoichiometric oxide forms by reaction of dioxide with water and by water-catalyzed reaction of dioxide with oxygen. The PuO(2) + H(2)O reaction rate is 0.27 nanomoles per meter squared per hour at 25 degrees C; the activation energy at 25 degrees to 350 degrees C is 39 kilojoules per mole. Slow kinetics and a low lattice parameter-composition dependence for fluorite-related PuO(2+x) are consistent with a failure to observe the phase in earlier studies. Perplexing aspects of plutonium oxide chemistry can now be explained.
More Related Videos
Related Concept Videos
Redox Reactions
Oxidation-Reduction Reactions
Oxidation Numbers
Lewis Structures of Molecular Compounds and Polyatomic Ions
Balancing Redox Equations
Redox Reactions

