Electrochemical Synthesis of LaSi2 from a NaCl-NaF-LaF3-K2SiF6 Melt at 1023 K
ECS Transactions(2016)
Abstract
The aim of this work was to examine the possibility of producing lanthanum silicides by the electrolysis of molten salts, containing lanthanum and silicon ions, on a nickel cathode. The electrochemical behavior of the NaCl-NaF-LaF3-K2SiF6 molten salts system was studied by cyclic voltammetry. The electrolysis was carried out in a NaCl-NaF-LaF3-K2SiF6 melt in a glassy carbon crucible at 1023 K in argon atmosphere; a nickel plate was used as the cathode. Cathodic products were analyzed by X-ray and JEM-2100F SEM. Coatings of lanthanum disilicide were deposited from NaCl-NaF-LaF3-K2SiF6 melts on a Ni cathode at 1023 K in argon atmosphere.
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Key words
Molten Salt Electrolysis
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