A novel direct reduction method to synthesize ordered Fe-Pt alloy nanoparticles
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2019年第4期
论文作者：Q.Zheng Z.R.Zhang J.Du L.L.Lin W.X.Xia J.Zhang B.R.Bian J.P.Liu
文章页码：560 - 567
摘 要：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-Fe3 Pt, 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.
Q.Zheng1，Z.R.Zhang2，J.Du2，L.L.Lin2，W.X.Xia2，J.Zhang2，B.R.Bian2，J.P.Liu3
1. School of Materials and Chemical Engineering,Ningbo University of Technology2. CAS Key Laboratory of Magnetic Materials and Devices,Ningbo Institute of Material Technology & Engineering,Chinese Academy of Sciences3. Department of Physics,University of Texas at Arlington
摘 要：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-Fe3 Pt, 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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