摘要
采用微乳液法合成了Co、Zn复合掺杂的纳米Ni(OH)_2粉体,通过改变温度、pH值对产品堆积密度、比容量的影响, 发现T=50℃、pH=11时,样品电极的性能较好,以50 mA·g^(-1)恒电流充放电,终止电压为1．0V的充放电制度下,其比容量达 282mAh·g^(-1),样品经过50次循环后容衰减率仅为2．5％．
Nano-Ni（OH）2 substituted with Co-Zn was prepared by the method of microemulsion. Effects of preparation conditions on stack density, electrochemical performance of the samples were respectively discussed,including changing temperature,pH. The results showed that the electrochemical performance was improved when T=50℃,pH= 11.When the charging current,the discharging current was respectively50 mA·g^-1, and the end potential was 1.0V, the results showed that the sample exhibited high specific capacity（282 mA·g^-1） and good cycling performance.
出处
《广东化工》
CAS
2006年第4期32-33,42,共3页
Guangdong Chemical Industry
关键词
微乳液法
Co-Zn复合掺杂
纳米氢氧化镍
microemulsion method
Co-Zn substituted
Nano-Ni（OH）2
electrochemical performance
