储能科学与技术2025，Vol.14Issue(6)：2270-2277,8.DOI:10.19799/j.cnki.2095-4239.2024.1204
原位氮掺杂石墨烯的制备及超级电容器性能研究
In situ synthesis of nitrogen-doped graphene for supercapacitor applications
赵云鹏 1李彦芳 1崔昕浩 1孙海燕 1滕莹雪1
作者信息
- 1. 辽宁科技大学材料与冶金学院,辽宁 鞍山 114051
- 折叠
摘要
Abstract
Supercapacitors are important energy storage devices,and their electrochemical performance is intrinsically linked to the electrode materials.The storage capacity of supercapacitors can be enhanced by combining graphene and polyaniline to form a composite material.This is achieved using dual storage modes:bilayer capacitance and Faraday capacitance.In this study,polyaniline(PANI)nanowires were deposited onto graphene sheets via in situ polymerization.The morphology and composition of the doped PANI/graphene composite were characterized using scanning electron microscopy,Fourier-infrared spectroscopy,and X-ray diffractometry.The composite slurry was coated onto a nickel foam plate to prepare graphene composite electrodes,which were then assembled into supercapacitors.The electrochemical performance of the assembled capacitors was evaluated using cyclic voltammetry,galvanostatic charge-discharge,and electrochemical impedance spectroscopy.The PANI/graphene composite exhibits good capacitance,cycling stability,and adaptability to high current densities.The mass-specific capacitance of the PANI/graphene composite was 336 F/g at a current density of 1 A/g.The specific capacitances of the graphene and graphite electrodes were 44%and 560.1%higher,respectively.The in situ polymerization method ensured strong interfacial bonding between PANI nanowires and graphene,enhanced the pseudocapacitance contributions,and significantly improved the specific capacitance of graphene supercapacitors.These findings promote the application of graphene in supercapacitors.关键词
复合材料/聚苯胺/氮掺杂/石墨烯/超级电容器Key words
composite/polyaniline/nitrogen-doped/graphene/supercapacitor引用本文复制引用
赵云鹏,李彦芳,崔昕浩,孙海燕,滕莹雪..原位氮掺杂石墨烯的制备及超级电容器性能研究[J].储能科学与技术,2025,14(6):2270-2277,8.
