电池2018，Vol.48Issue(2)：74-78,5.DOI:10.19535/j.1001-1579.2018.02.002
两步法制备多孔石墨烯的电化学性能
Electrochemical performance of porous graphene prepared by two-step method
摘要
Abstract
Porous graphene was prepared with graphene oxide as the precursor by the two step method,first of all,the reduced graphene oxide was synthesized by hydrothermal reaction with Vitamin C,KMnO4,Na2CO3 as reducing agents.Porous graphene was prepared by chemical etching and nitric acid ultrasonic processing,respectively.The surface microstructures and reduction degree of the material were characterized by XRD,SEM,Fourier transform infrared spectroscopy (FT-IR),Raman spectrum and thermal gravimetry (TG).The electrochemical performance of porous graphene was tested by cyclic voltammetry (CV),galvanostatic chargedischarge and electrochemical impedance spectroscopy(EIS).The graphene with high degree of reduction and obvious pore structure was obtained with VC as reducing agent.The graphene pore size was small and uniform after ultrasonic treatment with nitric acid,when the current was 1 A/g,the specific capacitance of the electrode materials was 87.50 F/g in 0-0.56 V.关键词
两步法/还原剂/电极材料/多孔石墨烯/超级电容器Key words
two-step method/reducing agent/electrode material/porous graphene/supercapacitor分类
信息技术与安全科学引用本文复制引用
刘斌,赫文秀,张永强,刘君红..两步法制备多孔石墨烯的电化学性能[J].电池,2018,48(2):74-78,5.基金项目
国家自然科学基金(21766024),内蒙古自然科学基金(2015MS0208),内蒙古自治区高等学校青年科技英才计划-青年科技领军人才A类项目(NJYT-14-A08),包头市科技计划项目(2015C2004-1,2016-4) （21766024）
