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A synthetic route to size-controlled fcc and fct FePt nanoparticles

Howard, L. E. M., Nguyen, H. L., Giblin, Sean ORCID:, Tanner, B. K., Terry, I., Hughes, A. K. and Evans, J. S. O. 2005. A synthetic route to size-controlled fcc and fct FePt nanoparticles. Journal of the American Chemical Society 127 (29) , pp. 10140-10141. 10.1021/ja051669e

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We report here a new synthetic route to FePt nanoparticles using a stoichiometric mixture of Na2Fe(CO)4 and Pt(acac)2. The structure of FePt nanoparticles, their size, chemical composition, and magnetic property can be controlled by various synthetic parameters, such as the solvent type, nature, and molar ratio of surfactants and stabilizers, synthesis temperature, and purification process. Partially ordered fct (L10) nanoparticles with room temperature magnetic coercivity can be synthesized directly in tetracosane solution at 389 °C. The fcc FePt synthesized in nonadecane can be transformed into the magnetically important fct phase at 430 °C without significant particle sintering.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: American Chemical Society
ISSN: 0002-7863
Last Modified: 21 Oct 2022 10:50

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