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EXAFS study of iron nanoparticles with oxide shell

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Author(s): A. Onyszko | Cz. Kapusta | J. Sieniawski

Journal: Archives of Materials Science and Engineering
ISSN 1897-2764

Volume: 28;
Issue: 10;
Start page: 597;
Date: 2007;
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Keywords: Nanomaterials | Magnetite | EXAFS

ABSTRACT
Purpose: The aim of this work is to present the results of the study of the local structure of iron nanoparticlwith oxide shell which uses EXAFS method that apply synchrotronic radiation.Design/methodology/approach: The samples used in the carried out analysis were as follows: pure iropowder, pure iron powder containing nanoparticles and pure iron powder containing nanoparticles subjected 224 hours of grinding.Findings: The local structure of iron nanoparticles with oxide shell were found.Research limitations/implications: It was not enough time to measure O:K edge.Practical implications: The analysis of spectra does not reveal any iron oxides in samples. More accuraresults would be obtained at oxygen K edge.Originality/value: It was proved that iron nanoparticles with oxide shell samples had the local structucharacteristic for metallic iron.

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