Organic Crosslinked Polymer-Derived N/O-Doped Porous Carbons for High-Performance Supercapacitor

Supercapacitors, as a new type of green electrical energy storage device, are a potential solution to environmental problems created by economic development and the excessive use of fossil energy resources. In this work, nitrogen/oxygen (N/O)-doped porous carbon materials for high-performance superc...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2022-06, Vol.12 (13), p.2186
Main Authors: Lao, Jianhao, Lu, Yao, Fang, Songwen, Xu, Fen, Sun, Lixian, Wang, Yu, Zhou, Tianhao, Liao, Lumin, Guan, Yanxun, Wei, Xueying, Zhang, Chenchen, Yang, Yukai, Xia, Yongpeng, Luo, Yumei, Zou, Yongjin, Chu, Hailiang, Zhang, Huanzhi, Luo, Yong, Zhu, Yanling
Format: Article
Language:English
Subjects:
Capacitance
Carbon
Clean energy
Crosslinking
Diphenyl methane diisocyanate
Economic development
Electrochemical analysis
Electrochemistry
Electrode materials
Electrodes
Electrolytes
Energy
Energy resources
Energy sources
Energy storage
Environmental impact
Fourier transforms
Methylcellulose
Microscopy
Nitrogen
organic crosslinked polymer
Polyethylene glycol
Polymers
porous carbon
Porous materials
R&D
Raw materials
Research & development
Spectrum analysis
supercapacitor
Supercapacitors
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Summary:Supercapacitors, as a new type of green electrical energy storage device, are a potential solution to environmental problems created by economic development and the excessive use of fossil energy resources. In this work, nitrogen/oxygen (N/O)-doped porous carbon materials for high-performance supercapacitors are fabricated by calcining and activating an organic crosslinked polymer prepared using polyethylene glycol, hydroxypropyl methylcellulose, and 4,4-diphenylmethane diisocyanate. The porous carbon exhibits a large specific surface area (1589 m2·g−1) and high electrochemical performance, thanks to the network structure and rich N/O content in the organic crosslinked polymer. The optimized porous carbon material (COCLP-4.5), obtained by adjusting the raw material ratio of the organic crosslinked polymer, exhibits a high specific capacitance (522 F·g−1 at 0.5 A·g−1), good rate capability (319 F·g−1 at 20 A·g−1), and outstanding stability (83% retention after 5000 cycles) in a three-electrode system. Furthermore, an energy density of 18.04 Wh·kg−1 is obtained at a power density of 200.0 W·kg−1 in a two-electrode system. This study demonstrates that organic crosslinked polymer-derived porous carbon electrode materials have good energy storage potential.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano12132186