Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74992
Title: Three-dimensional porous activated carbon derived from loofah sponge biomass for supercapacitor applications
Authors: Su, XL
Chen, JR
Zheng, GP 
Yang, JH
Guan, XX
Liu, P
Zheng, XC
Keywords: Activated carbon tube
Electrochemical behaviors
Hierarchical porous structure
Loofah sponge
Supercapacitors
Issue Date: 2018
Publisher: Elsevier B.V.
Source: Applied surface science, 2018, v. 436, p. 327-336 How to cite?
Journal: Applied surface science 
Abstract: Biomass carbon source is generally cheap, environmentally friendly and readily available in high quality and quantity. In this work, a series of loofah sponge-derived activated carbon (SAC-x) with hierarchical porous structures are prepared by KOH chemical activation and used as electrode materials for supercapacitors. The pore size can be easily controllable by changing the dosage of KOH. The optimized material (SAC-4) exhibits a high specific capacitance of 309.6 F g−1 at 1 A g−1 in the three-electrode system using 6 M KOH electrolyte. More importantly, the as-assembled symmetric supercapacitor based on SAC-4 exhibits a high energy density of 16.1 Wh kg−1 at a power density of 160.0 W kg−1 using 1 M Na2SO4 electrolyte. These remarkable results demonstrate the exciting commercial potential of SAC-x for high-performance supercapacitor applications due to their high specific surface area, appropriately porous structure, and the trace heteroatom (O and N) functionalities.
URI: http://hdl.handle.net/10397/74992
ISSN: 0169-4332
EISSN: 1873-5584
DOI: 10.1016/j.apsusc.2017.11.249
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