(浙江工業(yè)大學(xué) 應(yīng)用化學(xué)系， 杭州 310032)
摘 要: 采用固相法制備了納米β-Ni(OH)2， 采用Scherrer公式由其中一樣品的（100）、 （101）及（110）晶面參數(shù)計(jì)算得到晶粒尺寸分別為11.1nm、 3.6nm和12.1nm。 采用循環(huán)伏安、 恒電流充放電等技術(shù)對其電化學(xué)性能進(jìn)行了初步研究，結(jié)果表明： 納米Ni(OH)2的活性比較高， 其首次容量達(dá)207.9mA·h·g-1， 第2周期容量即達(dá)到最大值240.4mA·h·g-1， 但其容量衰退較快。
關(guān)鍵字: 納米材料； Ni(OH)2； 充放電性能
（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
