Use of ethylene oxide in the sol-gel synthesis of alpha-Fe2O3 nanoparticles 
from Fe(III) salts

Dong, W.; Zhu, C.

doi:10.1039/b200773h

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Use of ethylene oxide in the sol-gel synthesis of alpha-Fe2O3 nanoparticles from Fe(III) salts

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Dong, W.
Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society;
Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society;
Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Dong, W., & Zhu, C. (2002). Use of ethylene oxide in the sol-gel synthesis of alpha-Fe2O3 nanoparticles from Fe(III) salts. Journal of Materials Chemistry, 12(6), 1676-1683. doi:10.1039/b200773h.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-9A55-4

Abstract

alpha-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 alpha-Fe2O3 nanoparticles were investigated by XRD, TEM and SAXS (small angle X-ray scattering) techniques. It was found that the mean size of the alpha-Fe2O3 nanoparticles formed via the sol-gel process is smaller than those formed via the sol process. The values of the mass fractal dimension (D-m) for the alpha-Fe2O3 nanoparticles formed via the sol and sol-gel processes are 2 < D-m < 3 and 3 < D-m < 4, respectively.