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Electrode Processes during Aluminum Electrodeposition in Aromatic Solvents

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Abstract

The aluminum electrodeposition kinetics is studied in solutions of aluminum bromide in such aromatic solvents as benzene, toluene, p-xylene, and ethylbenzene. The effect of the aluminum bromide concentration on the rate of aluminum electrodeposition from a xylene electrolyte is investigated. A failed aluminum-plating electrolyte can be restored to full working capacity by treating it with an alkyl halide. This capability to restore the covering power of aluminum-plating electrolytes decreases in the series CH3Cl > C2H5Br > n3H7Br > n-C4H9Br. The temperature dependence of the rate of cathodic aluminum deposition is determined. The calculated effective activation energy for aluminum electrodeposition from a xylene–durene electrolyte is 44.5–64.5 kJ mol–1.

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Shavkunov, S.P., Strugova, T.L. Electrode Processes during Aluminum Electrodeposition in Aromatic Solvents. Russian Journal of Electrochemistry 39, 642–649 (2003). https://doi.org/10.1023/A:1024157428537

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  • DOI: https://doi.org/10.1023/A:1024157428537

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