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Plasmachemical synthesis of maghemite nanoparticles in atmospheric pressure microwave torch

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Original title:Plasmachemical synthesis of maghemite nanoparticles in atmospheric pressure microwave torch
Authors:Petr Synek, Ondřej Jašek, Lenka Zajíčková, Bohumil David, Vít Kudrle, Naděžda Pizúrová
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Original language:English
Field:Plasma physics
WWW:link to a new windowhttp://dx.doi.org/10.1016/j.matlet.2010.12.048
Type:Article in Periodical
Keywords:Iron oxide; PECVD; Nanoparticles; Magnetic materials; Raman; Maghemite

The powder of gama - Fe2O3 nanoparticles was synthesized in microwave torch at atmospheric pressure from 0.05 sccm of Fe(CO)5 vapors in 670 sccm of argon. The optimization of the torch reactor design and deposition conditions allowed continual synthesis of gama - Fe2O3 nanoparticles at low power consumption. The synthesized powder was collected at the reactor walls and analyzed by TEM, X-ray diffraction and Raman spectroscopy without any further purification or treatment. The mean diameter of NPs, as observed by TEM, was 12 nm with a 90% confidence interval 5.5-22 nm.

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