Hierarchical nitrogen-doped porous carbon with high surface area derived from endothelium corneum gigeriae galli for high-performance supercapacitor
- Title
- Hierarchical nitrogen-doped porous carbon with high surface area derived from endothelium corneum gigeriae galli for high-performance supercapacitor
- Author
- Kwan-San Hui
- Keywords
- Endothelium corneum gigeriae galli; Nitrogen-doped porous carbon; Supercapacitor; High specific surface area
- Issue Date
- 2014-06
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- ELECTROCHIMICA ACTA, 130, p.464-469
- Abstract
- Endothelium corneum gigeriae galli derived 3D hierarchical nitrogen-doped porous carbon was for the first time prepared by preliminary carbonization at 450 degrees C and final KOH activation at high temperatures. The surface and structural properties of the as-synthesized samples are analyzed with Brunauer-Emmett-Teller surface analyzer apparatus, X-Ray Diffractometer, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectrometer. The electrochemical performances are analyzed by cyclic voltammetry, galvanostatic charge/discharge cycling and electrochemical impedance spectroscopy. The obtained results show that the sample carbonized at 900 degrees C possesses the SSA of 2149.9 m(2) g(-1), average micropore diameter of 1.78 nm, and exhibits the highest initial specific capacitance of 198.0 F g(-1) at current density of 1 A g(-1) in 6 M KOH solution. It retains good specific capacitance retention of 91.6% after 3000 charge/discharge cycles at current density of 2 A g(-1). (C) 2014 Elsevier Ltd. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S001346861400512Xhttp://hdl.handle.net/20.500.11754/54682
- ISSN
- 0013-4686; 1873-3859
- DOI
- 10.1016/j.electacta.2014.03.015
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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