四川大学学报（自然科学版）2017，Vol.54Issue(1)：156-160,5.DOI:103969/j.issn.0490-6756.2017.01.026
氧化石墨烯-单壁碳纳米管复合物的超电容性能研究
Study on the supercapacitance performance of graphene oxide-pristine SWNT composites
摘要
Abstract
Graphene oxide-pristine single-walled carbon nanotube(SWNT) composit-es were fabricated using graphene oxide(GO) as a surfactant to directly disperse pristine SWNT,followed by a freeze-drying method of the sample.The morphology,structure,component and electrochemical property of the compounds were characterized by scanning electron microscopy,transmission electron microscopy,X-ray photoelectron spectroscopy and electrochemical measurements.The results showed that the electrochemical properties of the compounds are significantly improved due to the insertion of SWNTs into a GO matrix.Through changing the ratio between SWNTs and graphene oxide,the sample corresponding to a SWNT ratio of 10％ shows the best supercapacitor property.At such a optimized mixing ratio,the specific capacitance of the nanocomposite is 155 F · g 1 at a current of 0.5A · g-1 in the KOH aqueous electrolyte of 6 mol · L-1,which is 1.9-fold higher than that of pure graphene oxide (81.5F · g-1).These results clearly demonstrate that GO-SWNT composites prepared by our present simple method are very promising for next generation high-performance energy storage devices.关键词
氧化石墨烯/单壁碳纳米管/超级电容器Key words
Graphene oxide/Carbon nanotube/Supercapacitor分类
化学化工引用本文复制引用
程建宇..氧化石墨烯-单壁碳纳米管复合物的超电容性能研究[J].四川大学学报（自然科学版）,2017,54(1):156-160,5.基金项目
中央高校基本科研业务费专项资金(WK2070000019) （WK2070000019）
