期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 104, 期 -, 页码 13-20出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.indcrop.2017.04.015
关键词
Electrochemical capacitors; Pineapple leaf fiber; KOH-activated carbon; Biomass; Porous carbon materials
资金
- Office of Naval Research Global, USA [N62909-15-1-2012]
- Center of Sustainable Energy and Green Materials, the Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University
The interconnected open-channel carbon nanosheets were prepared from the agro-waste pineapple leaf fiber using a simple hydrothermal technique and KOH chemical activation under heat treatment in Ar atmosphere. The obtained activated carbon showed amorphous structure with porous graphitized carbon nanosheets and a high specific surface area of 1681 m(2) g(-1). When used as an active material for supercapacitor, such natural fiber-derived carbon nanosheets revealed a high electrochemical performance (the specific capacitance was as high as 202 F g(-1) at 5 mV s(-1) in 1 M H2SO4) and a superb cycling stability even after 10,000 cycles of operation. The carbon nanosheets reported herein, therefore, represent a green energy material that combine the benefit of sustainability of an active component and the promise of high-performance energy storage device.
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