Title: Assessment of the Thermochemical Properties of Actinides in Molten Chlorides
Authors: MASSET PatrickAPOSTOLIDIS ChristosMALMBECK RikardREBIZANT J.SERP J.GLATZ Jean-Paul
Citation: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES vol. 63 p. 107-113
Publisher: VERLAG Z NATURFORSCH
Publication Year: 2008
JRC N°: JRC50344
ISSN: 0932-0784
URI: http://www.znaturforsch.com/aa/v63a/63a0107.pdf
http://publications.jrc.ec.europa.eu/repository/handle/JRC50344
Type: Articles in Journals
Abstract: 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.
JRC Institute:Institute for Transuranium Elements

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