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Synthesis of monodispersed fcc and fct FePt/FePd nanoparticles by microwave irradiation

Nguyen, H. L., Howard, L. E. M., Giblin, Sean ORCID:, Tanner, B. K., Terry, I., Hughes, A. K., Ross, I. M., Serres, A., Burckstummer, H. and Evans, J. S. O. 2005. Synthesis of monodispersed fcc and fct FePt/FePd nanoparticles by microwave irradiation. Journal of Materials Chemistry 15 (48) , pp. 5136-5143. 10.1039/B511850F

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A simple microwave heating method has been used for the stoichiometrically controlled synthesis of FePt and FePd nanoparticles using Na2Fe(CO)4 and Pt(acac)2/Pd(acac)2 as the main reactants. By varying the solvents and surfactants, the microwave assisted reactions have shown a significant advantage for the rapid production of monodisperse fcc FePt nanoparticle metal alloys which can be converted to the fct phase at low temperatures (364 °C). Microwave reactions at high pressure (closed system) have led to the direct formation of a mixture of fcc and fct phase FePt nanoparticles. Room temperature structural and magnetic properties of materials have been characterized by X-ray diffraction, HRTEM and magnetic measurements. The onset of ordering has been investigated by in situ high temperature X-ray diffraction studies.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: RSC Publishing
ISSN: 0959-9428
Last Modified: 21 Oct 2022 10:50

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