J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (4): 560-567.DOI: 10.1016/j.jmst.2018.09.036

• Orginal Article • Previous Articles     Next Articles

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

Q. Zhenga, Z.R. Zhangb1, J. Dub*(), L.L. Linb, W.X. Xiab, J. Zhangb, B.R. Bianb*(), J.P. Liuc   

  1. a School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo, 315211, China
    b CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China;
    c Department of Physics, University of Texas at Arlington, Arlington, TX, USA
  • Received:2018-05-31 Revised:2018-07-11 Accepted:2018-09-05 Online:2019-04-05 Published:2019-01-28
  • Contact: Du J.,Bian B.R.


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.

Key words: Magnetic nanoparticles, FePt, Chemical synthesis