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›› 2011, Vol. 11 ›› Issue (1): 158-161.

• 材料工程专栏 • 上一篇    下一篇

纳米铁-镍合金颗粒的制备及表征

袁明亮 陶加华 余亮 宋聪 邱冠周   

  1. 中南大学资源加工与生物工程学院 中南大学资源加工与生物工程学院无机材料系 中南大学资源加工与生物工程学院无机材料系 中南大学资源加工与生物工程学院无机材料系 中南大学资源加工与生物工程学院
  • 收稿日期:2010-10-20 修回日期:2010-12-27 出版日期:2011-02-20 发布日期:2011-02-20
  • 通讯作者: 袁明亮

Preparation and Characterization of Iron-Nickel Alloy Nanoparticles

YUAN Ming-liang TAO Jia-hua YU Liang SONG Cong QIU Guan-zhou   

  1. School of Resources Processing and Bioengineering, Central South University School of Resources Processing and Bioengineering, Central South University School of Resources Processing and Bioengineering, Central South University School of Resources Processing and Bioengineering, Central South University School of Resources Processing and Bioengineering, Central South University
  • Received:2010-10-20 Revised:2010-12-27 Online:2011-02-20 Published:2011-02-20
  • Contact: YUAN Ming-liang

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摘要： 采用液相还原法，在醇-水体系中存在表面活性剂的条件，于水相中将FeSO4和NiSO4还原为纳米铁-镍合金颗粒，利用XRD, SEM和振动样品磁强计等手段对样品进行表征. 结果表明，在150℃、摩尔比FeSO4/NiSO4 1:3及NaOH 4 g、水合肼15 mL、反应2 h的优化条件下，制备出单一相FeNi3合金颗粒，其饱和磁化强度为121.36 A×m2/g，矫顽力为1.42 A/m.

关键词: 纳米铁-镍合金, 水合肼, 水热法, 饱和磁化强度

Abstract: In ethanol-water system, Fe-Ni alloy nanoparticles were prepared by reduction of the mixture solution of FeSO4 and NiSO4 in the presence of surfactant with liquid-phase reduction method. Their samples were characterized by XRD, SEM and VSM, respectively. The results indicate that single FeNi3 alloy phase could be obtained under the optimized conditions of solution composition of molar ratio of FeSO4/NiSO4 at 1:3, 4 g NaOH and 15 mL N2H4×2H2O at 150℃ for 2 h, the values of saturation magnetization and coercivity were 121.36 A×m2/g, and 1.42 A/m. Besides, the influences of synthesis conditions on the magnetic properties of Fe-Ni alloy nanoparticles were also examined.

Key words: nano-sized iron-nickel alloy, hydrazine hydrate, hydrothermal method, saturation magnetization

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