Jump to main content
Jump to site search

Issue 13, 2012
Previous Article Next Article

Supercapacitors based on high-quality graphene scrolls

Author affiliations


High-quality graphene scrolls (GSS) with a unique scrolled topography are designed using a microexplosion method. Their capacitance properties are investigated by cyclic voltammetry, galvanostatic charge–discharge and electrical impedance spectroscopy. Compared with the specific capacity of 110 F g−1 for graphene sheets, a remarkable capacity of 162.2 F g−1 is obtained at the current density of 1.0 A g−1 in 6 M KOH aqueous solution owing to the unique scrolled structure of GSS. The capacity value is increased by about 50% only because of the topological change of graphene sheets. Meanwhile, GSS exhibit excellent long-term cycling stability along with 96.8% retained after 1000 cycles at 1.0 A g−1. These encouraging results indicate that GSS based on the topological structure of graphene sheets are a kind of promising material for supercapacitors.

Graphical abstract: Supercapacitors based on high-quality graphene scrolls

Back to tab navigation

Publication details

The article was received on 31 Mar 2012, accepted on 09 May 2012 and first published on 11 May 2012

Article type: Paper
DOI: 10.1039/C2NR30779K
Nanoscale, 2012,4, 3997-4001

  •   Request permissions

    Supercapacitors based on high-quality graphene scrolls

    F. Zeng, Y. Kuang, G. Liu, R. Liu, Z. Huang, C. Fu and H. Zhou, Nanoscale, 2012, 4, 3997
    DOI: 10.1039/C2NR30779K

Search articles by author