期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 63, 期 -, 页码 112-116出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2018.02.006
关键词
Supercapacitor; Nitrogen doping; Bi-modal pore; Glycine; Rate performance
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2016R1A2B2016033]
We prepared a nitrogen-doped bi-modal porous carbon nanostructure (G-500/20) using a template method with 500 and 20 nm SiO2 beads and glycine. The G500/20 has a surface area of 403 m(2) g(-1) with meso/macroporous structure and N-doping content of 5.9 at%. In the supercapacitor performance, G-500/20 exhibits superior specific capacitances of 19.5 and 5.3 Fg(-1) at 200 mV s(-1) and 20 A g(-1) in 6 M NaOH, compared to a commercial activated carbon. In particular, the superior capacitances of G500/20 at high scan rates and current densities were achieved due to the bi-modal porous structure and nitrogen doping effect. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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