化工学报2016，Vol.67Issue(12)：5276-5282,7.DOI:10.11949/j.issn.0438-1157.20160870
氰酸盐离子液体在石墨烯基超级电容器中的应用
Applications of cyanate ionic liquids in graphene-based supercapacitors
摘要
Abstract
Supercapacitors were constructed with graphene as electrodes and ionic liquidN-methyl-N- propylpyrrolidinium cyanate ([C3mpyr] [OCN])/propylene carbonate (PC) as the mixed electrolytes. The electrochemical properties of constructed supercapacitors were tested at 50, 60 and 70℃ by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge (GCD). The results indicated that the constructed supercapacitors exhibited good electrochemical properties at high operating temperatures. The supercapacitors gave the specific capacity of 295 F·g−1 and delivered an energy density as high as 118 W·h·kg−1 at 70℃ with the current density of 0.5 A·g−1. Additionally, the constructed supercapacitors showed a good cycling stability.关键词
超级电容器/离子液体/石墨烯/电化学/电解质Key words
supercapacitors/ionic liquids/graphene/electrochemistry/electrolytes分类
化学化工引用本文复制引用
张利锋,杜素青,刘毅,原晓艳,黄剑锋,郭守武..氰酸盐离子液体在石墨烯基超级电容器中的应用[J].化工学报,2016,67(12):5276-5282,7.基金项目
国家自然科学基金项目（21203116）；国家重点基础研究发展计划前期研究专项课题（2014CB260411）。@@@@supported by the National Natural Science Foundation of China (21203116) and the Special Preliminary Study Plan of National Basic Research Program of China (2014CB260411) （21203116）
