摘要
采用液相沉淀法制备了Co3O4与碳纳米管(CNT)复合材料。利用循环伏安法和恒流充放电法,探讨了不同扫描速率对复合材料电化学性能的影响。结果表明,在0~0.4V扫描电位区间,5mA恒定电流密度下,Co3O4与CNT掺杂质量比为90:10的复合材料比容最大,为316.311F.g^-1。
The composites of Co3O4 with different proportions of CNT were prepared by liquid phase deposition method, and were used as supercapacitor electrode material. The effects of different scan rate on the electrochemical properties of composite materials were studied by cyclic voltammetry and galvanostatic charge-discharge method, and its surface features and phase composition was studied by SEM and XRD. The results show that Co3O4 doped with carbon- nanotubes when the mass ratio is 90:10 has maximum specific capacitance of 316.311 F.g^-1 in the potential range of 0~0.4 V and a constant current of 5 mA.
作者
崔淑坤
郭道军
CUI Shu-kun;GUO Dao-jun(College of Elementary Education, Jining University, Qufu 273100, China;School of Chemistry and Chemical Engineering,Qufu Normal University, Qufu 273165, China)
出处
《唐山师范学院学报》
2019年第3期1-5,共5页
Journal of Tangshan Normal University
基金
山东省自然科学基金面上项目(ZR2014BM035)
山东省优秀中青年科学家科研奖励基金(博士基金)(BS2010NJ008)
