Formation and In Situ Sizing of -Fe2O3 Nanoparticles in a Microwave Flow Reactor
Authors: C. Janzen; H. Wiggers; J. Knipping; P. Roth
Source: Journal of Nanoscience and Nanotechnology, Volume 1, Number 2, June 2001 , pp. 221-225(5)
Publisher: American Scientific Publishers
Abstract:Nanocrystalline -Fe2O3 particles were produced in a microwave flow reactor. The reaction of iron pentacarbonyl [Fe(CO)5] with the plasma gases Ar/O2 to form nanosized particles was followed by in situ particle mass spectrometry. The particle mass spectrometer combines a nonintrusive sampling technique with a calibration-free mass determination. The influence of process parameters like microwave power, precursor concentration, and pressure on the particle size was studied. The results reveal a mean particle diameter in the range of 45 nm with a slight dependence on the process parameter. The geometric standard deviation of the measured size distribution was always between 1.1 and 1.2.
Document Type: Research article
Publication date: 2001-06-01
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