重庆大学学报2016,Vol.39Issue(6):95-100,6.DOI:10.11835/j.issn.1000-582X.2016.06.012
镍钴硫化物的制备及其反应温度对形貌和超级电容器性能的影响
Preparation of Ni-Co sulfide and the influence of reaction temperature on the morphology and the properties of supercapacitor
摘要
Abstract
Nickel cobalt sulfidenanospheres was synthesized by facile solvothermal synthesis method.The properties of the as-prepared Ni-Co sulfide powders were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM)and X-ray photoelectron spectroscopy (XPS).Cyclic voltammetry (CV),galvanostatic charge-discharge measurement were also employed to test the electrochemical performances of nickel cobalt sulfide as electrode material of supercapacitor.The mass specific capacitance and the area specific capacitance of the electrode prepared under 160 ℃ was 1 298 F/g and 1.13 F/cm2 respectively at charge and discharge current density of 2 mA/cm2 .After a 10 000 cycle test at current density of 10 mA/cm2 ,the specific capacitance retains 70.8% of its initial capacitance.In addition,the influence of reaction temperature on the performance of the supercapacitor was studied by controlling the reaction temperature.The results show that the reaction temperature have little influence on its morphologies,but a certain impact on electrochemical performance.关键词
镍钴硫化物/溶剂热/温度/超级电容器Key words
nickel-cobalt sulfides/solvothermal/temperature/supercapacitor分类
化学化工引用本文复制引用
廖明佳,乔雷,陈海岸,揭芳芳..镍钴硫化物的制备及其反应温度对形貌和超级电容器性能的影响[J].重庆大学学报,2016,39(6):95-100,6.基金项目
中央高校重点项目(106112015CDJZR305501)。Supported by Key Project of Central Universities (106112015CDJZR305501). ()