학술논문
Macroscopic synthesis of ultrafine N-doped carbon nanofibers for superior capacitive energy storage.
Document Type
Academic Journal
Author
Yu Q; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.; Lv J; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China; International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.; Liu Z; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.; Xu M; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.; Yang W; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.; Owusu KA; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.; Mai L; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.; Zhao D; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.; Zhou L; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China. Electronic address: liangzhou@whut.edu.cn.
Source
Publisher: Elsevier B.V. Country of Publication: Netherlands NLM ID: 101655530 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2095-9281 (Electronic) Linking ISSN: 20959273 NLM ISO Abbreviation: Sci Bull (Beijing) Subsets: PubMed not MEDLINE; MEDLINE
Subject
Language
English
Abstract
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 ∼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.
(Copyright © 2019 Science China Press. Published by Elsevier B.V. All rights reserved.)
(Copyright © 2019 Science China Press. Published by Elsevier B.V. All rights reserved.)