Linear sweep voltammetry and chronopotentiometry were used to study the diffusion of Ni2+ in melts which contained 29.4BeF2 and 5.0mol%ZrF4. At 500C, the diffusivity of Ni2+ was found to be equal to 1.07 x 10-6cm2/s using voltammetry and equal to 1.05 x 10-6 cm2/s using chronopotentiometry.

Determination of the Diffusion Coefficient of Ni in Molten LiF-BeF2-ZrF4 by Linear Sweep Voltammetry and Chronopotentiometry. D.L.Manning, G.Mamantov: High Temperature Science, 1971, 3[6], 533-6