Electrochemical Performance of Zn(002) and Zn(100) Single Crystals in 6.0mol·L⁻¹ KOH

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• 作者：Huaqing WANG ; Shangqi ZHOU ; Changguo CHEN ; Qiuhong WANG
• 关键词：zinc single crystal electrode ; alkaline solution ; corrosion ; cyclic voltammetry ; dendrite
• 刊名：Chinese Journal of Chemical Engineering
• 出版年：2006
• 出版时间：August 2006
• 年：2006
• 卷：14
• 期：4
• 页码：551-554
• 全文大小：636 K

文摘

In this article, the electrochemical performance of the electrodes of zinc polycrystal, Zn(002) and Zn(100) single crystals were studied by the Tafel line extrapolation of the potentio-dynamic polarization curves, the cyclic voltammetry and the charge/discharge experiment. The results shows that in 6.0 mol·L⁻¹ KOH solution the corrosion rate of Zn polycrystal, Zn(100) and Zn(002) single crystals decreases in turn; and the reversibility and the charge/discharge performance of Zn single crystal was superior to Zn polycrystal. The dendrite growth of the surface of Zn polycrystal was easier than Zn single crystal during the stages of charge/discharge.