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DOI: 10.1039/C5NR00765H

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In-situ growth of capping-free magnetic iron oxide nanoparticles on liquid-phase exfoliated graphene T. Tsoufis,a* Z. Syrgiannis,b N Akhtar,a M. Prato,b* F. Katsaros,c Z. Sideratou,c A. Kouloumpis,d D. Gournis,d and P. Rudolf,a*

Received 00th February 2015, Accepted 00th February 2015 DOI: 10.1039/x0xx00000x www.rsc.org/

We report a facile approach for the in-situ synthesis of very small iron oxide nanoparticles on the surface of high-quality graphene sheets. Our synthetic strategy involved the direct, liquid-phase exfoliation of highly crystalline graphite (avoiding any oxidation treatment) and the subsequent chemical functionalization of the graphene sheets via the wellestablished 1,3-dipolar cycloaddition reaction. The resulting graphene derivatives were employed for the immobilization of the nanoparticle precursor (Fe cations) at the introduced organic groups by a modified wet-impregnation method, followed by interaction with acetic acid vapours. The final graphene-iron oxide hybrid material was achieved by heating (calcination) in an inert atmosphere. Characterization by X-ray diffraction, transmission electron and atomic force microscopy, Raman and X-ray photoelectron spectroscopy gave evidence for the formation of rather small (

In situ growth of capping-free magnetic iron oxide nanoparticles on liquid-phase exfoliated graphene.

We report a facile approach for the in situ synthesis of very small iron oxide nanoparticles on the surface of high-quality graphene sheets. Our synth...
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