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Issue 6, 2002
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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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Article information


Submitted
21 Jan 2002
Accepted
14 Mar 2002
First published
11 Apr 2002

J. Mater. Chem., 2002,12, 1676-1683
Article type
Paper

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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