期刊
SCIENCE BULLETIN
卷 64, 期 21, 页码 1617-1624出版社
ELSEVIER
DOI: 10.1016/j.scib.2019.08.008
关键词
Macroscopic synthesis; Carbon; Nanofibers; N-doping; Supercapacitor
资金
- National Key Research and Development Program of China [2016YFA0202603]
- National Natural Science Foundation of China [21673171]
- Program of Introducing Talents of Discipline to Universities [B17034]
- National Natural Science Fund for Distinguished Young Scholars [51425204]
Carbon nanofibers (CNFs) with excellent electric conductivity and high surface area have attracted immense research interests in supercapacitors. However, the macroscopic production of CNFs still remains a great challenge. Herein, ultrafine N-doped CNFs (N-CNFs) with a diameter of similar to 20 nm are synthesized through a simple and scalable sol-gel method based on the self-assembly of phenolic resin and cetyltrimethylammonium bromide. When employed in aqueous supercapacitors, the obtained activated N-CNFs manifest a high gravimetric/areal capacitance (380 F g(-1)/1 .7 F cm(-2)) as well as outstanding rate capability and cycling stability. Besides, the activated N-CNFs also demonstrate excellent capacitive performance (330 F g(-1)) in flexible quasi-solid-state supercapacitors. The remarkable electrochemical performance as well as the easy and scalable synthesis makes the N-CNFs a highly promising electrode material for supercapacitors. (C) 2019 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
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