包装学报2024，Vol.16Issue(5)：1-8,8.DOI:10.3969/j.issn.1674-7100.2024.05.001
聚乙烯吡咯烷酮辅助合成NiCo2O4微球及其电化学性能研究
Polyvinyl Pyrrolidone-Assisted Synthesis of NiCo2O4 Microspheres and Their Electrochemical Properties
张亚琴 1颜魏华 1谭亚鹏 1甘喜文 1李福枝1
作者信息
- 1. 湖南工业大学包装与材料工程学院 湖南 株洲 412007
- 折叠
摘要
Abstract
In order to prepare electrode materials with high specific capacitance and good cycling stability,spinel-type NiCo2O4 microspheres were prepared by surfactant-assisted co-precipitation using polyvinylpyrrolidone(PVP)as a surfactant,and the effects of surfactant dosage and alkali source on the electrochemical performances of NiCo2O4 materials were explored.The results show that the prepared NiCo2O4 electrode material has the best capacitance performance when the dosage of polyvinylpyrrolidone is 1.5 g and the alkali source is NaOH,and the specific capacitance reaches 642.8 F/g at a current density of 1 A/g.Meanwhile,the capacity retention rate of 73.6％is achieved after 1000 cycles of constant-current charging/discharging,showing a good cycling stability.关键词
聚乙烯吡咯烷酮/共沉淀法/NiCo2O4微球/电化学性能Key words
polyvinylpyrrolidone/coprecipitation method/NiCo2O4 microsphere/electrochemical property分类
通用工业技术引用本文复制引用
张亚琴,颜魏华,谭亚鹏,甘喜文,李福枝..聚乙烯吡咯烷酮辅助合成NiCo2O4微球及其电化学性能研究[J].包装学报,2024,16(5):1-8,8.
