<研究論文>NaCl-KCl-Li_2MoO_4溶融塩中におけるMoの電解析出挙動

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The electrolytic deposition behavior of Mo in molten salt has been studied using the equimolarNaCI-KCI molten salt, which contains Li,MoO, as a molybdenum source. In the equimolar NaCIKCImolten salt containing only Li2MoO" a high cathodic current corresponding to the reductionreaction of Li2MoO, was observed under cathodic polarization. Under this polarization, the depositionof Mo could not be observed, but the deposition of Li,Mo20, which grew perpendicular to thesubstrate surface was observed. On the other hand, in the equimolar NaCI-KCI molten salt containingB20 3, AIF3 or K2SiF6 as the second addition agents in addition to the Li2MoO" a highercathodic current was observed under cathodic polarization, showing that the cathodic reaction wasmore active. Under the cathodic polarization in the molten salt containing B,O, or AIF3 as thesecond addition agent, the deposition of Mo02 occurred without depending on the polarization potential.On the contrary, under the cathodic polarization in the molten salt containing K2SiF6 asthe second addition agent the deposition material was changed with the polarization potential.Thus, in the molten salt containing K2SiF6, MoO, was deposited at high potentials, while Mo wasdeposited at low potentials. Consequently, it was found that in the equimolar NaCI-KCI moltensalt containing Li2MoO, and K2SiF6, Mo was deposited under the cathodic polarization at low potential
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