Study on Cyclic Voltammetry in Na3AlF6-Al2O3-LiF Molten Salt Electrolysis

Shao Hu Tao; Yue Zhong Di; Jian Ping Peng; Kun Zhao; Nai Xiang Feng

doi:10.4028/www.scientific.net/AMR.746.101

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 746Study on Cyclic Voltammetry in Na3AlF6-Al2O3-LiF...

Study on Cyclic Voltammetry in Na₃AlF₆-Al₂O₃-LiF Molten Salt Electrolysis

Abstract:

Electrochemistry reaction of the Al³⁺by means of cyclic voltammetry. The results show that the Al³⁺ was reduced to Al metal in a single step. During the electrochemical process, metal Na and Li did not deposit out on tungsten electrode. After adding LiF, the oxidation peak of Al was weakened and the oxidation quality of Al decreased. Compared with cyclic voltammetry curves at different CR ratio (CR=molar ratio of N_NaF/N_AlF3in the bath), LiF is more effective in the low CR system for electrolyte. The XRD analysis shows that Li-Al alloy was soluble in the molten salt while Li⁺and Al³⁺occured alloying reaction.

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Periodical:

Advanced Materials Research (Volume 746)

Pages:

101-105

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.746.101

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Online since:

August 2013

Authors:

Shao Hu Tao, Yue Zhong Di, Jian Ping Peng, Kun Zhao, Nai Xiang Feng

Keywords:

Cyclic Voltammetry (CV), Electrochemical Deposition, LiF

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