Assessment of the Thermochemical Properties of Actinides in Molten Chlorides
The electrochemical properties of the chlorides of the actinides U, Pu, Np and Am (AnCl3) were
investigated by transient electrochemical techniques in the LiCl-KCl eutectic at 400 ¿ 550 ¿C. The
diffusion coefficients of the cations and the apparent standard potentials of the redox systems on an
inert W electrode were measured. The Gibbs energy of dilute solutions of AnCl3 as well as the activity
coefficients were derived from electrochemical measurements. In addition, the electrochemical
behaviour of the actinides on an Al electrode was investigated. They formed AnAl4 alloys, the formation
potentials of which allowed a quantitative recovery of the actinides and their separation from
fission products and especially from lanthanides. In addition, the thermochemical properties of the
AnAl4 alloys were determined by electrochemical measurements.
MASSET Patrick;
APOSTOLIDIS Christos;
MALMBECK Rikard;
REBIZANT J.;
SERP J.;
GLATZ Jean-Paul;
2009-02-06
VERLAG Z NATURFORSCH
JRC50344
0932-0784,
http://www.znaturforsch.com/aa/v63a/63a0107.pdf,
https://publications.jrc.ec.europa.eu/repository/handle/JRC50344,
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