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 language | English |
|---|---|
| Pages (from-to) | 61-65 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 659 |
| DOIs | |
| Publication status | Published - 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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Lv, J., & Liang, T. (2016). Nanoporous graphene obtained by hydrothermal process in H2O2 and its application for supercapacitors. Chemical Physics Letters, 659, 61-65. https://doi.org/10.1016/j.cplett.2016.07.015