镁在DMF中电沉积机理的研究

STUDIES ON THE MECHANISM OF Mg ELECTRODEPOSITION IN DMF

自本世纪初始,人们一直试图在非水体系中电沉积镁,迄今尚未见到令人满意的报道。此外,有关镁在非水体系中,在固态电极上电沉积机理的研究工作也未见系统报道。本工作首先确证了在高氯酸镁的DMF溶液中、在光亮铂电极上能电沉积出金属镁。在此基础上初步研究了这一电沉积过程的动力学特征,提出了在该体系中镁电沉积的机理。

The characteristics of Mg electrodeposition on Pt in DMF have been investigated by means of cyclic voltammetry and rotating ring-disk electrode technique, The current-potential curves of Mg electrodeposition indicate that this electro deposition process is irreversible. The order of reaction for Mg^(2+) was found to beunity. A rate constant k of 10^(-7) cm s^(-1) was obtained for this electrodeposition process.