Journal
APPLIED SURFACE SCIENCE
Volume 416, Issue -, Pages 918-924Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.04.162
Keywords
Oxygen-rich; Hierarchical porous; Carbon; Natural resources; Supercapacitor
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Funding
- Science and Technology Department Application Foundation of Sichuan Province [2017JY0088]
- Sichuan Provincial Department of Education Key Project [17ZA0086]
- Youth Foundations of Chengdu University [2016XJZ19]
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Oxygen-rich hierarchical porous carbon has been fabricated using pomelo peel fiber as a carbon source via an improved KOH activation method. The morphology and chemical composition of the obtained carbon materials were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), electron microscopy (EM), Raman spectra and elemental analysis. The unique porous structure with abundant oxygen functional groups is favorable to capacitive behavior, and the as-prepared carbon material exhibits high specific capacitance of 222.6 F g(-1) at 0.5 A g(-1) in 6 M KOH and superior stability over 5000 cycles. This work not only describes a simple way to prepare high-performance carbon material from the discarded pomelo peel, but also provides a strategy for its disposal issue and contributes to the environmental improvement. (C) 2017 Published by Elsevier B.V.
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