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Published in: Journal of Materials Science: Materials in Electronics 21/2018

07-09-2018

Fluorine and oxygen co-doped porous carbons derived from third-class red dates for high-performance symmetrical supercapacitors

Authors: Chang Peng, Tianqin Zeng, Yong Yu, Zefan Li, Zeyuan Kuai, Wenkui Zhao

Published in: Journal of Materials Science: Materials in Electronics | Issue 21/2018

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Abstract

Recently, the incorporation of foreign atoms (e.g. nitrogen, phosphorus, fluorine, and oxygen, etc.) into the carbocycle has been demonstrated to be very promising for enhancing the electrochemical property of carbon-based supercapacitor. Herein, for the first time, fluorine and oxygen co-doped porous carbons (FOPCs) were successfully prepared by employing third-class red dates as precursor, which showed high specific surface area (1229 m2 g−1), highly-developed micropores (~ 93%), rich oxygen-content (22.8 wt%) and moderate fluorine doping (1.0 wt%). Owing to the aforementioned advantages, the resultant FOPC-800 electrode displayed high specific capacities of 261 and 168 F g−1 at 1 and 20 A g−1 respectively, in 6 M KOH electrolyte. Moreover, high energy density (23.2 W h kg−1) of the FOPC-800-based symmetric supercapacitor was achieved in 1 M Na2SO4 electrolyte, with outstanding cyclic stability (93.5% retention after 5000 cycles).

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Appendix
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Metadata
Title
Fluorine and oxygen co-doped porous carbons derived from third-class red dates for high-performance symmetrical supercapacitors
Authors
Chang Peng
Tianqin Zeng
Yong Yu
Zefan Li
Zeyuan Kuai
Wenkui Zhao
Publication date
07-09-2018
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 21/2018
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-018-9990-3

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