氮掺杂蜂窝状多孔石墨烯的制备及电化学性能研究
Preparation and Electrochemical Properties of Nitrogen-doped Honeycomb Porous Graphene
刘志森 1冯煜鹏 1谢文玉 1张志远2
作者信息
- 1. 广东石油化工学院 环境科学与工程学院,广东高校石油化工污染控制重点实验室,广东 茂名 525000
- 2. 广东石油化工学院 图书馆,广东 茂名 525000
- 折叠
摘要
采用一步炭化法,以氧化石墨烯为前驱体,聚苯乙烯(PS)微球为硬模板,三聚氰胺为氮源,按不同投料比进行掺杂,成功制备出氮掺杂蜂窝状多孔石墨烯材料(NhG),并进行电化学性能测试.实验结果显示:按 3 倍当量掺杂比制备出的NhG1-3 电极材料具有优良的电化学性能(0.5 A/g 电流密度下的比电容为 79.3 F/g,经过 10000 次循环后电容保持率为85.29%),有望作为电极材料应用于超级电容器中.
Abstract
Nitrogen-doped honeycomb porous graphene material(NhG)was successfully prepared by one-step carbonization method using graphene oxide as precursor,polystyrene microspheres(PS)as hard template,melamine as nitrogen source,and doping according to different feed ratios.The experimental results show that the NhG1-3 electrode material prepared by 3 times equivalent doping ratio has excellent electrochemical performance(the specific capacitance is 79.3 F/g at a current density of 0.5 A/g,and the capacitance retention rate is 85.29%after 10,000 cycles),which was expected to be used as an electrode material in supercapacitors.
关键词
超级电容器/氮掺杂/多孔石墨烯/比电容Key words
supercapacitor/nitrogen doping/porous graphene/specific capacitance引用本文复制引用
基金项目
广东石油化工学院博士启动项目(2022bsqd2003)
出版年
2024
国家科技期刊平台
NSTL
万方数据