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Issue 6, 2002
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Use of ethylene oxide in the sol–gel synthesis of α-Fe2O3 nanoparticles from Fe(III) salts

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Abstract

α-Fe2O3 nanoparticles were prepared by the sol–gel process with ethylene oxide (EO) and FeCl3 as starting materials. The influences of the molar ratio of EO to Cl, the concentration of FeCl3, the volume percentage of ethanol and heat treatment on the structural properties of the α-Fe2O3 nanoparticles were investigated by XRD, TEM and SAXS (small angle X-ray scattering) techniques. It was found that the mean size of the α-Fe2O3 nanoparticles formed via the sol–gel process is smaller than those formed via the sol process. The values of the mass fractal dimension (Dm) for the α-Fe2O3 nanoparticles formed via the sol and sol–gel processes are 2 < Dm < 3 and 3 < Dm < 4, respectively.

Graphical abstract: Use of ethylene oxide in the sol–gel synthesis of α-Fe2O3 nanoparticles from Fe(iii) salts

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Publication details

The article was received on 21 Jan 2002, accepted on 14 Mar 2002 and first published on 11 Apr 2002


Article type: Paper
DOI: 10.1039/B200773H
Citation: J. Mater. Chem., 2002,12, 1676-1683
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    Use of ethylene oxide in the sol–gel synthesis of α-Fe2O3 nanoparticles from Fe(III) salts

    W. Dong and C. Zhu, J. Mater. Chem., 2002, 12, 1676
    DOI: 10.1039/B200773H

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