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

作     者：Q.Zheng Z.R.Zhang J.Du L.L.Lin W.X.Xia J.Zhang B.R.Bian J.P.Liu 

作者机构：School of Materials and Chemical EngineeringNingbo University of Technology CAS Key Laboratory of Magnetic Materials and DevicesNingbo Institute of Material Technology & EngineeringChinese Academy of Sciences Department of PhysicsUniversity of Texas at Arlington 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2019年第35卷第4期

页      面：560-567页

核心收录：

学科分类：080602[工学-钢铁冶金] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0806[工学-冶金工程] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China (Grant Nos.51772220,51772219,51771095,51422106) Zhejiang Provincial Natural Science Foundation of China (No.D19E010001) the National Basic Research Program of China (Grant No.2014CB643702) 

主　　题：Magnetic nanoparticles FePt Chemical synthesis 

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 H_2-containing atmosphere was used as reducer. Utilizing this method, the composition and chemical ordered phase, such as L1_2-Fe_3 Pt, L1_2-FePt_3, and L1_0-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.