A novel direct reduction method to synthesize ordered Fe-Pt alloy nanoparticles

In this work, a direct green solid-phase reduction method for the fabrication of large yield of ordered phase Fe-Pt alloy nanoparticles was reported, in which inorganic salts were used as metal precursors and H2-containing atmosphere was used as reducer. Utilizing this method, the composition and ch...

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Bibliographic Details
Published in:Journal of materials science & technology 2019-04, Vol.35 (4), p.560-567
Main Authors: Zheng, Q., Zhang, Z.R., Du, J., Lin, L.L., Xia, W.X., Zhang, J., Bian, B.R., Liu, J.P.
Format: Article
Language:English
Subjects:
Chemical synthesis
FePt
Magnetic nanoparticles
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Summary:In this work, a direct green solid-phase reduction method for the fabrication of large yield of ordered phase Fe-Pt alloy nanoparticles was reported, in which inorganic salts were used as metal precursors and H2-containing atmosphere was used as reducer. Utilizing this method, the composition and chemical ordered phase, such as L12-Fe3Pt, L12-FePt3, and L10-FePt phases can be easily achieved by one step reaction. The synthesized nanoparticles have clean surface because no organic precursors, no organic solutions or organic surfactants/ligands were used. Their magnetic performance and the formation mechanism of Fe-Pt alloy nanoparticles were also investigated. This strategy can be applied to synthesize many other types of alloy nanoparticles with desired composition and necessary crystal structure, which can be used for a variety of practical applications, such as in magnetism and catalyst research fields.
ISSN:1005-0302
1941-1162
DOI:10.1016/j.jmst.2018.09.036