锌单晶体(002)和(100)晶面的电化学行为  

Electrochemical performance of Zn(002) and Zn(100) single crystals

作　　者：王华清[1] 周上祺[1] 陈昌国[2] 余丹梅[2] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]重庆大学化学化工学院,重庆400044

出　　处：《电池》2004年第6期399-400,共2页Battery Bimonthly

摘　　要：用塔菲尔曲线外推法、循环伏安法以及充放电法分别研究了锌多晶体电极、锌单晶体(002)晶面电极和(100)晶面电极在6 0mol/L的KOH溶液中的电化学行为。结果表明:在6 0mol/L的KOH溶液中,锌多晶体电极、锌单晶体(002)晶面电极和(100)晶面电极的腐蚀速度依次减小;锌单晶体电极可逆性更优;充放电循环过程中,在锌多晶体电极表面比锌单晶体电极表面更易生长枝晶。The electrochemical performance of the electrodes of Zn polycrystal, Zn(002) and Zn(100) single crystals experiment in 6.0 mol/L KOH solution were studied by Tafel line extrapolation of potentiodynamic polarization curves, cyclic voltammetry and charge/discharge experiment.The results showed that in 6.0 mol/L KOH solution,the corrosion rate of Zn polycrystal, Zn(002) and Zn(100) single crystals decreased in turn; the reversibility 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 charge/discharge.

关 键 词：锌单晶体电极 碱性溶液 腐蚀 循环伏安 枝晶 

分 类 号：TM910.3[电气工程—电力电子与电力传动]