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has been cited by the following article:

• TITLE: Effect of Li Ions on Al Electrodeposition from Dimethylsulfone

  AUTHORS: Sangjae Kim, Shota Kumeno, Kenta Kamebuchi, Kensuke Kuroda, Masazumi Okido

  KEYWORDS: Electrodeposition, Aluminum, Lithium, Nuclear Magnetic Resonance, Dimethylsulfone

  JOURNAL NAME: Journal of Surface Engineered Materials and Advanced Technology, Vol.8 No.4, October 16, 2018

  ABSTRACT: The influence of LiCl coexistence with Al electrodeposition was investigated in a dimethyl sulfone, DMSO2, bath containing AlCl3 at 403 K. The electrochemical behaviors of Li and Al ions were examined using Pt electrodes in the bath and the deposition mechanism was analyzed by cyclic voltammetry, CV, with an Al reference electrode in the bath. The coexistence of LiCl in the AlCl3-DMSO2 bath inhibited the cathodic current corresponding to Al deposition in the CV experiment. The amount of ca. 500 μmol Al deposits was obtained in constant potential electrolysis for 1 h at –2 V in the bath with 10 mol% AlCl3. However, it decreased to 140 μmol Al in the bath with 10 mol% AlCl3 and 5 mol% LiCl. It was clarified that LiCl addition led to the formation of Li(DMSO2)+ more than the formation of from NMR measurement for the baths. This results in the suppression of Al deposition because LiCl inhibits the formation of complex ions, which is said to be necessary for Al electrodeposition.