Elsevier

New Carbon Materials

Volume 24, Issue 2, June 2009, Pages 147-152
New Carbon Materials

RESEARCH PAPER
In situ synthesis of graphene oxide and its composites with iron oxide

https://doi.org/10.1016/S1872-5805(08)60044-XGet rights and content

Abstract

A single step method was developed for the preparation of graphene oxide/Fe2O3 composites by exfoliation of graphite oxide with an oxygen-rich ferric acetyl acetonate complex. The synthesized materials were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, vibrating sample magnetometry, atomic force microscopy, and low temperature dc conductivity measurements. After exfoliation, the Fourier transform infrared studies reveal the decomposition of epoxy groups and the simultaneous formation of composites of iron oxide particles within the graphene oxide. Atomic force microscopy reveals the formation of an ∼5nm thick graphene oxide stack with layered morphology. The layered morphology of graphene oxide degrades at higher concentrations of iron oxide. The vibrating sample magnetometer studies show ferromagnetic behavior of all composites in the range of 0.13–5.5 emu/g at room temperature. The conductivity of these composites is found to be governed by a quasi 1D hopping mechanism.

References (33)

  • KS Novoselov et al.

    Two-dimensional atomic crystals[J]

    Proceedings of the National Academy of Sciences

    (2005)
  • C Berger et al.

    Electronic confinement and coherence in patterned epitaxial graphene[J]

    Science

    (2006)
  • K Nakada et al.

    Edge state in graphene ribbons: Nanometer size effect and edge shape dependence[J]

    Phys Rev B

    (1996)
  • KS Novoselov et al.

    Two-dimensional gas of massless Dirac fermions in graphene[J]

    Nature

    (2005)
  • Y Zhang et al.

    Experimental observation of the quantum Hall effect and Berry's phase in graphene[J]

    Nature

    (2005)
  • S Stankovich et al.

    Graphene-based composite materials[J]

    Nature

    (2006)
  • Cited by (137)

    View all citing articles on Scopus
    View full text