摘要
以氯化镍为镍盐来源,尿素为沉淀剂,采用超声法快速地合成了由纳米片组装而成的花状Ni(OH)2微球。探讨了超声时间和功率、反应物配比等因素对Ni(OH)2电化学性能的影响。结果表明,当超声时间为30 min,超声功率为500 W,镍盐和尿素的配比为1/4时,所得Ni(OH)2样品的电容性能最佳,10 mA下恒流充放电时,其放电比电容量高达1 906 F/g。
Flower-like Ni（OH）2 microspheres assembled from several dozens of nanosheets were success-fully synthesized through a rapid ultrasonic irradiation process in a very simple system composed only of water,NiCl2 and CO（NH2 ）2 . The effects of the ultrasonic time and power,the reactants ratio on electro-chemical properties were discussed. The result showed that the maximum specific capacitance value of 1 906 F/ g at 10 mA could be achieved,the Ni（OH）2 flower-like microspheres obtained at ultrasonic time of 30 min,ultrasonic power of 500 W and the NiCl2 / CO（NH2 ）2 ratio of 1 / 4.
出处
《应用化工》
CAS
CSCD
2014年第5期839-842,846,共5页
Applied Chemical Industry
基金
山东省优秀中青年科学家科研奖励基金项目(BS2010NJ007)
山东省精品课程建设项目
青岛农业大学精品课程建设项目(XJPK1001)
关键词
综合性实验
超声波
纳米片
Ni(OH)2花状微球
电容特性
comprehensive experiment
ultrasonic wave
nanosheets
Ni（OH）2 flower-like micro-spheres
capacitive performances
