Electrochemical behavior of silicon compound in LiF-NaF-KF-Na2SiF6 molten salt

The electrochemical reduction and nucleation process of Si4+ on an electrical steel electrode in the eutectic LiF-NaF-KF molten salt were investigated at 750 A degrees C, by means of cyclic voltammetry and chronoamperometry technique. Silicon was electrodeposited on steel, and Fe3Si was formed by the diffusivity of silicon on the electrode surface. The electrochemical reduction of Si4+ process in single-step charge transfer and the cathode process was reversible. The electrocrystallization process of silicon is controlled by progressive three-dimensional mechanism. The diffusion coefficient was calculated to be 5.42 x 10(-7) cm(2)/s by chronopotentiometry at experimental conditions.