An electrochemical study was made of GdCl3 in molten LiCl-KCl eutectic at 723 and 823K. Cyclic voltammetry and chronopotentiometry, on an inert metallic tungsten electrode, were used to investigate the reduction mechanism and transport parameters. The study showed that Gd3+ ions were reduced to Gd metal via a single-step mechanism, with the exchange of 3 electrons. The diffusion coefficient of GdCl3 ions was determined at various temperatures. At 723K, its value was 8.8 x 10-6cm2/s. The activation energy was 32.45kJ/mol.

Electrochemical Behaviour of Gadolinium Ion in Molten LiCl-KCl Eutectic. C.Caravaca, G.de Córdoba, M.J.Tomás, M.Rosado: Journal of Nuclear Materials, 2007, 360[1], 25-31