Issue 46, 2008

Deposition of Co3O4nanoparticles onto exfoliated graphite oxide sheets

Abstract

A composite of graphite oxide (GO)-supported Co3O4nanoparticles (NPs) was prepared through a facile chemical route. The lamellar GO sheets in this composite were exfoliated and decorated randomly by Co3O4 particles with an average size of 100 nm. The formation route to anchor Co3O4 NPs onto the exfoliated GO sheets was proposed as the intercalation and adsorption of cobalt ions into the layered GO sheets, followed by the nucleation and growth of Co3O4 crystals, resulting in the exfoliation of GO sheets. The nanocomposite reveals unusual catalytic effect for the decomposition of ammonium perchlorate due to the concerted effects of GO and Co3O4 NPs or their integrated properties. This methodology made the synthesis of GO-NP composites possible and may be further extended to prepare more complicated nanocomposites based on GO sheets for technological applications.

Graphical abstract: Deposition of Co3O4nanoparticles onto exfoliated graphite oxide sheets

Supplementary files

Article information

Article type
Paper
Submitted
09 Jun 2008
Accepted
18 Sep 2008
First published
22 Oct 2008

J. Mater. Chem., 2008,18, 5625-5629

Deposition of Co3O4nanoparticles onto exfoliated graphite oxide sheets

C. Xu, X. Wang, J. Zhu, X. Yang and L. Lu, J. Mater. Chem., 2008, 18, 5625 DOI: 10.1039/B809712G

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