不同pH值下包覆CoOOH的球形Ni(OH)_2的性能研究  

Effect of pH values on the capabilities of Ni(OH)_2 coated with CoOOH

作　　者：唐金红[1] 陈实[1] 王芳[1] 吴锋[1] 

机构地区：[1]北京理工大学化工与环境学院

出　　处：《功能材料》2007年第10期1669-1671,共3页Journal of Functional Materials

基　　金：国家重点基础研究发展规划资助项目(2002CB211800)

摘　　要：研究不同pH值对包覆CoOOH的球形Ni(OH)2的性能影响。在一定的温度和反应条件下,控制Co2+在碱液中转化为Co(OH)2时的pH值,研究不同pH值下包覆CoOOH后球形Ni(OH)2的性能。结果表明:当实验条件控制在pH=12时,包覆的CoOOH能比较密实的附着在Ni(OH)2颗粒表面,而且覆盖得比较均匀;电极放电电压较高,充放电性能提高。The spherical nickel hydroxide coated with CoOOH was studied. Different pH values was controlled during the process of Co^2＋→Co（OH）2 in the sodium hydroxide with the definite temperature and condition, and the effect of Ni（OH）2 coated with CoOOH were discussed. The results indicated that when the condition pH= 12 was controlled, CoOOH could be tightly coated and distributed uniformly on the surface of nickel hydroxide; the voltage of discharge was increased, and the charge-discharge performance was improved.

关 键 词：球形NI(OH)2 COOOH PH值 

分 类 号：TM912.2[电气工程—电力电子与电力传动]