Research Paper

Journal of Nanoparticle Research

, Volume 13, Issue 10, pp 5527-5534

Facile synthesis of nanosized ε-Fe2O3 particles on the silica support

  • G. A. BukhtiyarovaAffiliated withBoreskov Institute of Catalysis, Russian Academy of Sciences
  • , M. A. ShuvaevaAffiliated withBoreskov Institute of Catalysis, Russian Academy of Sciences
  • , O. A. BayukovAffiliated withKirensky Institute of Physics, Russian Academy of Sciences
  • , S. S. YakushkinAffiliated withBoreskov Institute of Catalysis, Russian Academy of Sciences
  • , O. N. MartyanovAffiliated withBoreskov Institute of Catalysis, Russian Academy of Sciences Email author 

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Abstract

An approach is suggested to synthesize the ε-Fe2O3 particles supported on silica with the mean size of few nanometers, narrow size distribution and no admixture of any other iron oxide polymorphs. The facile synthesis is based on the pore filling impregnation method by iron sulfate (II) water solution with the following annealing procedure at ~1173 K. It is shown that the ε-Fe2O3 nanoparticles obtained are stable up to ~1173 K and possess superparamagnetic behavior up to ~870 K.

Keywords

Supported nanoparticles Heterogeneous catalysts Synthesis Magnetic nanoparticles Electron spin resonance