(浙江工业大学 应用化学系， 杭州 310032)
摘 要: 采用固相法制备了纳米β-Ni(OH)2， 采用Scherrer公式由其中一样品的（100）、 （101）及（110）晶面参数计算得到晶粒尺寸分别为11.1nm、 3.6nm和12.1nm。 采用循环伏安、 恒电流充放电等技术对其电化学性能进行了初步研究，结果表明： 纳米Ni(OH)2的活性比较高， 其首次容量达207.9mA·h·g-1， 第2周期容量即达到最大值240.4mA·h·g-1， 但其容量衰退较快。
关键字: 纳米材料； Ni(OH)2； 充放电性能
（Department of Applied Chemistry, Zhejiang University of Technology,
Hangzhou 310032, China）
Abstract:Nano-sized β-Ni(OH)2 powder was prepared using solid state reaction method, and the particle sizes of (100), (101) and (110) planes were 11.1nm, 3.6nm and 12.1nm respectively, depending on Scherrer equation. By using cyclic voltammagraph and corresponding electrochemical measurements, the electrochemical performances of the electrodes using the nano-sized Ni(OH)2 samples were studied. The results show that the electrochemical capacity of the electrode exhibits excellent activation properties. The first discharge capacity is 207.9mA·h/g and the maximum capacity is 240.4mA·h/g at the second cycle. However, the degradation of capacity is fast.
Key words: nano-sized; Ni(OH)2; electrochemical performance
