超级电容器
电化学
材料科学
聚苯胺
碳纳米管
氮气
碳化
氧气
化学工程
电容
碳纤维
纳米技术
无机化学
电极
化学
有机化学
复合数
复合材料
物理化学
扫描电子显微镜
工程类
聚合
聚合物
作者
Haiyan Liu,Huaihe Song,Xiaohong Chen,Su Zhang,Ji Zhou,Zhenqiang Ma
标识
DOI:10.1016/j.jpowsour.2015.03.115
摘要
A kind of nitrogen- and oxygen-containing activated carbon nanotubes (ACNTs) has been prepared by carbonization and activation of polyaniline nanotubes obtained by rapidly mixed reaction. The ACNTs show oxygen content of 15.7% and nitrogen content of 2.97% (atomic ratio). The ACNTs perform high capacitance and good rate capability (327 F g−1 at the current density of 10 A g−1) when used as the electrode materials for supercapacitors. Hydrogen reduction has been further used to investigate the effects of surface functional groups on the electrochemical performance. The changes for both structural component and electrochemical performance reveal that the quinone oxygen, pyridinic nitrogen, and pyrrolic nitrogen of carbon have the most obvious influence on the capacitive property because of their pseudocapacitive contributions.
科研通智能强力驱动
Strongly Powered by AbleSci AI