Hierarchical Nanoporous Carbon Templated and Catalyzed by the Bicontinuous Nanoporous Copper for High Performance Electrochemical Capacitors

Xuequan Li, Yufeng Xing, Yingdong Xu, Qibo Deng, Kai Zhang, Li Hua Shao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

To enhance the performance of electrochemical capacitor, the nanostructured carbon materials with large surface area, appropriate pore distributions, suitable electronic conductivity and perfect chemical stability are pursued. Herein, the highly graphitized hierarchical porous carbon with well-defined porosity are fabricated. For the first time, the novel bicontinuous nanoporous copper is used as both the template and the catalyst to synthesize the porous carbon materials. The as-prepared porous carbon demonstrates a high specific surface area of 1826 m2 g−1 benefitting from the bicontinuous nanoporous copper template and KOH activation. By electrochemical test, the nanoporous carbon material displays a specific capacitance of 210 F g−1 at a current density of 0.2 A g−1 within 6 M KOH aqueous solution. The material demonstrates excellent cycling stability with a 95.4% capacity retention for 10 000 cycles with a current density of 1 A g−1. The present work provides a facile approach for fabrication of carbon-based electrode materials for electrochemical capacitors.

Original languageEnglish
Pages (from-to)6437-6444
Number of pages8
JournalChemistrySelect
Volume4
Issue number21
DOIs
Publication statusPublished - 7 Jun 2019

Keywords

  • bicontinuous nanoporous copper
  • electrochemical capacitors
  • nanoporous carbon

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