Characteristics of Fe2O3/SiO2 Nano-Composites Particles Prepared by a Diffusion Flame with Premixed Precursor

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Fe2O3 nano-particles coated with SiO2 are synthesized using H2/O2 co-axial diffusion flame with the state-of-the-art electro-spraying (e-spray) technique at atmospheric condition. Fe(CO)5 and TEOS (tetra-ethyl-ortho-silicate) mixture in liquid phase is injected directly into the center of the flame using the electro-spraying method. The synthesized particle characteristics are analyzed with HRTEM, XRD, SQUID. The core (iron oxide)-shell(silica) structured spherical particles are obtained. Most of the particles synthesized are magemite() regardless of the particles sampling positions inside the flame.

Info:

Periodical:

Materials Science Forum (Volumes 449-452)

Edited by:

S.-G. Kang and T. Kobayashi

Pages:

1173-1176

Citation:

K. H. Ahn et al., "Characteristics of Fe2O3/SiO2 Nano-Composites Particles Prepared by a Diffusion Flame with Premixed Precursor", Materials Science Forum, Vols. 449-452, pp. 1173-1176, 2004

Online since:

March 2004

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$38.00

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[10] [20] [30] Ms=11 emu/g Sampling Height from Burner Tip : 10mm Magnetization (emu/g) Applied magnetic field (Oe) -10000 -5000 0 5000 10000 -30 -20 -10.

[10] [20] [30] Ms=21 emu/g Sampling Height from Buner Tip : 60mm Magnetization (emu/g) Applied magnetic field (Oe).