Facile hydrothermal synthesis of N-doped commercial activated carbon for zinc ion hybrid supercapacitor

A one-step hydrothermal method was employed to treat commercial activated carbon (AC) with sodium azide as the nitrogen source. The characterizations confirmed the successful incorporation of N dopant into the surface of commercial activated carbon (NAC) and the specific surface area increased to 17...

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Bibliographic Details
Published in:Journal of porous materials 2023-08, Vol.30 (4), p.1303-1310
Main Authors: Zhao, Qian, Wang, Yang, Xie, Xingchen, Yu, Chongyan, Gong, Xinyu, Wang, Ni
Format: Article
Language:English
Subjects:
Activated carbon
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Electron transfer
Energy storage
Ion adsorption
Low temperature
Nitrogen
Physical Chemistry
Raw materials
Sodium azides
Supercapacitors
Zinc
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Summary:A one-step hydrothermal method was employed to treat commercial activated carbon (AC) with sodium azide as the nitrogen source. The characterizations confirmed the successful incorporation of N dopant into the surface of commercial activated carbon (NAC) and the specific surface area increased to 1739 m 2 ·g −1 , which indicates that nitrogen-doped activated carbon has excellent properties in ion adsorption and electron transfer. An NAC-based aqueous zinc ion hybrid supercapacitor (ZHS) is fabricated and shows a specific capacity of 232.4 mA·h·g −1 and an energy density of 232.4 Wh·kg −1 at 0.1 A·g −1 with a voltage window of 2.0 V and long-term GCD stability up to 10,000 cycles. Considering the low-cost raw materials and surface modification at a relatively low temperature, the proposed technical route can be viewed as a promising method for the modification of carbon-based materials and application in next-generation energy storage devices.
ISSN:1380-2224
1573-4854
DOI:10.1007/s10934-022-01421-z