Electrochemical behavior of B(<scp>iii</scp>) on a molybdenum electrode in NaCl–KCl eutectic molten salt

The electrochemical behavior of B(III) on a molybdenum electrode in NaCl–KCl–KBF4 molten salt at 1023 K is investigated and the diffusion coefficients of B(III) are calculated by cyclic voltammetry, square wave voltammetry and chronopotentiometry, respectively. The results show that the reduction of B(III) to B(0) is a diffusion-controlled single-step three-electron transfer reaction and the diffusion coefficient of B(III) is calculated to be 4.3 &#177; 0.4 &#215; 10−5 cm2 s−1 at 1023 K by cyclic voltammetry. An individual spheroidal aggregate boron coating is obtained by galvanostatic electrolysis.