摘要
通过高能球磨碳酸镍、碱式碳酸钴的方法制备了NiCo_(2)O_(4)/Co_(3)O_(4)复合材料。系统研究了原料质量比、球磨参数以及退火温度等对材料的微观形貌、结构、组份以及反应活化能和电化学性能的影响。结果表明,在碳酸镍和碱式碳酸钴质量比为2∶8,球磨时间为48 h,退火温度为300℃条件下制得复合材料在电位范围0~0.45 V,电流密度1 A/g的充放电条件下,比电容达到200 F/g,并且表现出了良好的充-放电循环稳定性。
The NiCo_(2)O_(4)/Co_(3)O_(4) composite material is prepared by the method of high-energy ball milling nickel carbonate and basic cobalt carbonate in this paper.The factors affecting the microscopic morphology,structure,composition,reaction activation energy and electrochemical performance of the material have been systematically studied.The results show that the mass ratio of nickel carbonate and basic cobalt carbonate is 2∶8,the ball milling time is 48 hours,and the annealing temperature is 300℃.The composite material has a potential range of 0-0.45 v and a current density of 1 A/g.The results show that the specific capacitance of the composite material can reach 200 F/g,and shows good charge-discharge cycle stability when the mass ratio of nickel carbonate and basic cobalt carbonate is 2∶8,the ball milling time is 48 hours,and the annealing temperature is 300℃.
作者
倪亮亮
盛绍顶
田恐虎
NI Liangliang;SHENG Shaoding;TIAN Konghu(School of Materials Science and Engineering, Anhui University of Technology, Huainan 232001, China)
出处
《功能材料》
CAS
CSCD
北大核心
2022年第1期1161-1168,共8页
Journal of Functional Materials
基金
安徽省自然科学基金项目(1908085QE244)。
