A novel direct reduction method to synthesize ordered Fe-Pt alloy nanoparticles |
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| Authors: | Q. Zheng Z.R. Zhang J. Du L.L. Lin W.X. Xia J. Zhang B.R. Bian J.P. Liu |
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| Affiliation: | 1. School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo, 315211, China;2. CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China;3. Department of Physics, University of Texas at Arlington, Arlington, TX, USA |
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| Abstract: | 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. |
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| Keywords: | Magnetic nanoparticles FePt Chemical synthesis |
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