Jump to main content
Jump to site search

Issue 23, 2010
Previous Article Next Article

Hollow graphene oxide spheres self-assembled by W/O emulsion

Author affiliations

Abstract

Hollow graphene oxide spheres (HGOSs) were fabricated from graphene oxide nanosheets (GONs) utilizing a water-in-oil (W/O) emulsion technique without surfactant. Effects of oxidation treatment and water removal on the formation and morphology of HGOSs are investigated. The oxidation time for preparing GONs is a crucial factor for the formation and morphology of HGOSs. We found that with increasing oxidation time, the morphology and surface topography of HGOSs vary from irregular and rough to uniform and smooth shape with decreasing diameter. Moreover, the electrochemical performance of HGOSs as anode materials in lithium-ion batteries was evaluated. The heat-treated HGOSs exhibit a 485 mAh g−1 reversible capacity and high rate performance thanks to the hollow structure, thin and porous shells consisting of graphene.

Graphical abstract: Hollow graphene oxide spheres self-assembled by W/O emulsion

Back to tab navigation

Publication details

The article was received on 04 Jan 2010, accepted on 17 Mar 2010 and first published on 30 Apr 2010


Article type: Paper
DOI: 10.1039/B927302F
Citation: J. Mater. Chem., 2010,20, 4867-4874
  •   Request permissions

    Hollow graphene oxide spheres self-assembled by W/O emulsion

    P. Guo, H. Song and X. Chen, J. Mater. Chem., 2010, 20, 4867
    DOI: 10.1039/B927302F

Search articles by author

Spotlight

Advertisements