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Nitrogen‐Doped Porous Graphitic Carbon as an Excellent Electrode Material for Advanced Supercapacitors
Abstract
An advanced supercapacitor material based on nitrogen‐doped porous graphitic carbon (NPGC) with high a surface area was synthesized by means of a simple coordination–pyrolysis combination process, in which tetraethyl orthosilicate (TEOS), nickel nitrate, and glucose were adopted as porogent, graphitic catalyst precursor, and carbon source, respectively. In addition, melamine was selected as a nitrogen source owing to its nitrogen‐enriched structure and the strong interaction between the amine groups and the glucose unit. A low‐temperature treatment resulted in the formation of a NPGC precursor by combination of the catalytic precursor, hydrolyzed TEOS, and the melamine–glucose unit. Following pyrolysis and removal of the catalyst and porogent, the NPGC material showed excellent electrical conductivity owing to its high crystallinity, a large Brunauer–Emmett–Teller surface area (SBET=1027 m 2 g−1), and a high nitrogen level (7.72 wt %). The unusual microstructure of NPGC materials could provide electrochemical energy storage. The NPGC material, without the need for any conductive additives, showed excellent capacitive behavior (293 F g−1 at 1 A g−1), long‐term cycling stability, and high coulombic efficiency (>99.9 % over 5000 cycles) in KOH when used as an electrode. Notably, in a two‐electrode symmetric supercapacitor, NPGC energy densities as high as 8.1 and 47.5 Wh kg−1, at a high power density (10.5 kW kg−1), were achieved in 6 M KOH and 1 M Et 4 NBF 4‐PC electrolytes, respectively. Thus, the synthesized NPGC material could be a highly promising electrode material for advanced supercapacitors and other conversion devices.
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Cited by
Wang, Q., Yan, J., & Fan, Z. (2016) · Energy & Environmental Science · doi:10.1039/c5ee03109e · Cited by 1,225
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From cellulose to graphene-like porous carbon nanosheets
Perondi, D., Bassanesi, G. R., Manera, C., Lazzari, L. K., Godinho, M., Zattera, A. J., & Dotto, G. L. (2021) · Microporous and Mesoporous Materials · doi:10.1016/j.micromeso.2021.111217 · Cited by 42
Ling, Q., Wu, R., Wang, Z.-H., Liang, H.-W., Lei, Z., Zhao, Z.-G., Ke, Q.-P., Liu, X.-C., & Cui, P. (2022) · Reaction Kinetics, Mechanisms and Catalysis · doi:10.1007/s11144-022-02251-5 · Cited by 4
Metadata
- Authors
- Sun, L., Tian, C., Fu, Y., Yang, Y., Yin, J., Wang, L., & Fu, H.
- Venue
- Chemistry – A European Journal
- Publisher
- Wiley
- Published
- 2013-12-04
- Volume
- 20
- Issue
- 2
- Pages
- 564-574
- ISSN
- 0947-6539 (ISSN-L)
- 1521-3765
- OpenAlex
- W2086103905
- Cited by
- 441
- References
- 48
- FWCI
- 13.19
- Type
- journal article
- Language
- en
- Open access
- closed
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