Meso/microporous nitrogen-containing carbon nanofibers with enhanced electrochemical capacitance performances

被引：9
|
作者：
Wang, Honghu [1 ]
Liu, Jinghao [1 ]
Zhang, Kun [1 ]
Peng, Hongrui [1 ]
Li, Guicun [1 ]
机构：
[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China
来源：
SYNTHETIC METALS | 2015年 / 203卷
基金：
中国国家自然科学基金;
关键词：
Supercapacitors; Nanofibers; Nitrogen-containing carbon; Polypyrrole; Porous carbon; POROUS CARBON; NANOTUBES; ENERGY; POLYPYRROLE; ACTIVATION; NANOSHEETS; LAYER;
D O I：
10.1016/j.synthmet.2015.02.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nitrogen-containing activated carbon nanofibers (ACN) have been synthesized by one-step carbonization and simultaneous activation of polypyrrole (Ppy) nanofibers using ZnCl2 as activating agent. The ACN possess meso/microporous structures, high specific surface area (1062.22 m(2) g(-2)), high nitrogen content (8.47 at.%), and low oxygen content (5.25 at.%). As expected, the ACN exhibit enhanced capacitance performances compared with nitrogen-containing carbon nanofibers (CN), such as high specific capacitance (290.2 F g(-1) at 0.5 A g(-1)), excellent rate capability (180.5 F g(-1) at 50 A g(-1)), and good cycling stability (97% of capacitance retention after 1000 cycles at 10 A g(-1)). Crown Copyright (C) 2015 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：149 / 155
页数：7
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