In this work, electrolysis with a Mg anode is presented to purify the molten chloride salt
(MgCl 2/KCl/NaCl 60/20/20 mol.%) for reducing its corrosivity. Using a Mg anode, the
production of toxic gases like Cl 2 on an inert anode (eg, tungsten) can be avoided.
Moreover, compared to an inert anode, a lower over-potential is required to remove the
corrosive impurity MgOH+ in the molten salt due to the high reactivity of Mg. In order to
evaluate the effect of the salt purification, the cyclic voltammetry (CV) method developed in …

In this work, electrolysis with a Mg anode is presented to purify the molten chloride salt
(MgCl2/KCl/NaCl 60/20/20 mole%) for reducing its corrosivity. Using a Mg anode, the
production of toxic gases like Cl2 on an inert anode can be avoided. Moreover, a lower
overpotential is required to remove the corrosive impurities (eg, MgOH+) in the molten salt
due to high reactivity of Mg. In order to evaluate the effect of the salt purification, the cyclic
voltammetry (CV) method developed in our previous work is used to in-situ measure the …