Abstract.
In this work, we present results of the synthesis and characterization of iron and iron oxide nanoparticles aggregated in filamentary, spider-web-like structures. The particles were produced in a flow reactor by CO2 laser pyrolysis of gaseous mixtures of iron pentacarbonyl and ethylene. Low- and high-resolution electron microscopy reveals chain-like structures of particles, most of them being composed of an α-iron core and an iron oxide shell, identified as magnetite and, to a lesser extent, hematite. These results are in good agreement with a Mössbauer analysis carried out for the same samples. The role of the reaction temperature on the synthesis of filamentary iron nanostructures by infrared laser pyrolysis of Fe(CO)5/C2H4 mixtures is discussed.
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Received: 31 May 2000 / Accepted: 6 June 2000 / Published online: 2 August 2000
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Hofmeister, H., Huisken, F., Kohn, B. et al. Filamentary iron nanostructures from laser-induced pyrolysis of iron pentacarbonyl and ethylene mixtures . Appl Phys A 72, 7–11 (2001). https://doi.org/10.1007/s003390000599
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DOI: https://doi.org/10.1007/s003390000599