Soft-Templated Synthesis of Sheet-Like Nanoporous Nitrogen-Doped Carbons for Electrochemical Supercapacitors

Abeer Enaiet Allah, Yusuke Yamauchi, Jie Wang, Yoshio Bando, Haibo Tan, Ahmed A. Farghali, Mohamed Hamdy Khedr, Abdulmohsen Alshehri, Yousef Gamaan Alghamdi, Darren Martin, Mohammad A. Wahab, Md Shahriar A. Hossain, Ashok Kumar Nanjundan

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Nitrogen-doped nanoporous sheet-like carbons are promising electrode materials for high-performance supercapacitors because of their unique properties that aid electrolyte access/ion diffusion to the electrode surface. Herein, a soft-templated synthesis strategy based on an organic-assembly process through the co-assembly of triblock copolymer micelles and phenol-formaldehyde resin in aqueous solution is utilized to prepare nitrogen-doped nanoporous carbons with sheet-like morphology. Further carbonization and activation yield a high-surface-area carbon with significantly improved porosity. The activated nanoporous carbon electrode exhibits a high specific capacitance of 543 F g −1 at a current density of 0.5 A g −1 with good cycling stability in an aqueous electrolyte.

Original languageEnglish
JournalChemElectroChem
DOIs
Publication statusAccepted/In press - 2019
Externally publishedYes

Keywords

  • chemical activation
  • nitrogen doping
  • soft-template method
  • supercapacitors
  • two-dimensional porous carbon

ASJC Scopus subject areas

  • Catalysis
  • Electrochemistry

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