Interconnected nanoporous carbon structure delivering enhanced mass transport and conductivity toward exceptional performance in supercapacitor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

18 Scopus Citations
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Author(s)

  • Shuai Zhang
  • Xiaoze Shi
  • Xin Wen
  • Xuecheng Chen
  • Tao Tang
  • Ewa Mijowska

Detail(s)

Original languageEnglish
Article number226811
Journal / PublicationJournal of Power Sources
Volume435
Online published27 Jun 2019
Publication statusPublished - 30 Sep 2019

Abstract

Although metal-organic frameworks (MOF) derived porous carbon has been widely used as electrode materials for supercapacitor, its limited ion diffusion/transportation as well as relatively low conductivity have hampered high capacitance achieved. To address this issue, an interconnected hierarchical nitrogen doped nanoporous carbon structure (N-NPC) from nanosized MOF crystals is proposed, which presents high ion-accessible surface area and ion diffusion/transportation rate as well as enhanced electric conductivity. Benefiting from the interconnected structure, the N-NPC exhibits an ultrahigh capacitance of 479 F g−1 in an aqueous electrolyte and 391 F g−1 in an organic electrolyte. More importantly, the energy densities are 22.9 Wh kg−1 and 100.6 Wh kg−1 in the aqueous and organic electrolytes, and excellent long-term cycle stability are achieved, respectively.

Research Area(s)

  • Energy storage, Heteroatoms-doping, Supercapacitor

Citation Format(s)

Interconnected nanoporous carbon structure delivering enhanced mass transport and conductivity toward exceptional performance in supercapacitor. / Zhang, Shuai; Shi, Xiaoze; Wen, Xin; Chen, Xuecheng; Chu, Paul K.; Tang, Tao; Mijowska, Ewa.

In: Journal of Power Sources, Vol. 435, 226811, 30.09.2019.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review