ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Electrochemical behaviour of the LiF-(CaF2)-La2O3 system
Marta Ambrová, Jana Jurišová, Alexandra Sýkorová, Dalibor Uher, Vladimír Danielik, and Ján Híveš
Institute of Inorganic Chemistry, Technology and Materials, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
Received: 21 June 2007 Revised: 28 August 2007 Accepted: 31 August 2007
Abstract: The electrochemical behaviour of the LiF-La2O3 and LiF-CaF2-La2O3 systems was investigated by means of cyclic voltammetry. Several types of working electrodes (spectrographic pure graphite,
W, Mo, Ni, Cu) were used. It was found that chemical reactions take place in the system during the dissolution of lanthanum
oxide. The reduction of lithium cations occurred at the most positive potential from the species formed in the melt on ‘inert’
cathodes (W, Mo). The reactive cathodes (Cu, Ni) allowed the lanthanum deposition with depolarisation.
Keywords: lanthanum - molten fluorides - cyclic voltammetry - spent nuclear fuel
Full paper is available at www.springerlink.com.
Chemical Papers 62 (2) 154–159 (2008)