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- Title
Heteroatoms (O, N)-doped porous carbon derived from bamboo shoots shells for high performance supercapacitors.
- Authors
Han, Junjian; Li, Qiang; Wang, Jiaqi; Ye, Jianglin; Fu, Guangsheng; Zhai, Lei; Zhu, Yanwu
- Abstract
Activated carbon derived from plant wastes is attractive for the fabrication of low cost and high performance electrochemical energy storage devices. The heteroatoms (O, N)-doped porous carbon (KAC-700) is fabricated from bamboo shoots shells via KOH activation. The symmetric supercapacitor based on KAC-700 has gravimetric and volumetric capacitance of 223.21 F g−1 and 167.63 F cm−3, respectively, at current density of 1 A g−1 in 1 M H2SO4 electrolyte. This supercapacitor also delivers a high energy density of 13.15 Wh kg−1 at power density of 546.60 W kg−1 in 1 M Na2SO4 electrolyte, as well as high capacitance retention rate of 93.62% after 4000 cycles at 5 A g−1. Compared with graphene, carbon nanotubes and other expensive carbon material, this activated carbon has a bright future due to its low cost and easy fabrication process as electrode material for supercapacitors.
- Subjects
HETEROCHAIN polymers; CARBON foams; SUPERCAPACITORS; BAMBOO shoots; ACTIVATED carbon; GRAVIMETRIC analysis
- Publication
Journal of Materials Science: Materials in Electronics, 2018, Vol 29, Issue 24, p20991
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-018-0244-1