Nanoporous graphene obtained by hydrothermal process in H2O2 and its application for supercapacitors

Jinlong Lv, Tongxiang Liang

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Nanohole graphene oxide (NHGO) was obtained in a homogeneous aqueous mixture of graphene oxide (GO) and H2O2 at 120 °C. Supercapacitors were fabricated as the electrode material by using NHGO. A specific capacitance of 240.1 F g−1 was obtained at a current density of 1 A g−1 in 6 m KOH electrolyte and specific capacitance remained 193.6 F g−1 at the current density of 20 A g−1. This was attributed to reducing the inner space between the double-layers, enhanced ion diffusion and large specific surface area. Supercapacitor prepared with NHGO electrodes also exhibited an excellent cycle stability.

Original languageEnglish
Pages (from-to)61-65
Number of pages5
JournalChemical Physics Letters
Volume659
DOIs
Publication statusPublished - 2016 Aug 16

Keywords

  • Graphene oxide
  • Holey
  • Hydrothermal process
  • Microstructure
  • Supercapacitors

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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