气凝胶
电极
电化学
电容器
材料科学
原材料
碳纤维
纳米技术
兴奋剂
化学工程
复合材料
光电子学
化学
电压
有机化学
电气工程
复合数
工程类
物理化学
作者
Juan Du,Lei Liu,Zepeng Hu,Yifeng Yu,Yue Zhang,Senlin Hou,Aibing Chen
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2018-01-30
卷期号:6 (3): 4008-4015
被引量:96
标识
DOI:10.1021/acssuschemeng.7b04396
摘要
The carbon fiber aerogel with a high surface area, as a promising ideal electrode for electrochemical capacitors (ECs), has attracted tremendous attention because it can offer a fast charge–discharge rate and an exceptional rate capability. However, there is still a big challenge to acquire highly porous fiber aerogel with elastic properties and good flexibility. Herein, N-doped porous carbon fiber aerogel (N-CFA) has been successfully fabricated using raw cotton as a fibrous template to obtain shaped aerogels. ZIF-8, in situ fabricated on the surface of cotton, played the role of an active agent and nitrogen source to create a rich porous structure with a certain nitrogen content. Benefiting from the macromonolith morphology with good flexibility, favorable mechanical durability, nitrogen doping, anda high specific surface area, the N-CFA exhibits excellent electrochemical performance with a high capacity of 365 F g–1 at a current of 0.5 A g–1 and a remarkable rate capability of 65.8% from 0.5 to 100 A g...
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