无机材料学报

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气-液化学反应制备氮化铁磁性液体

郭广生; 王志华; 余实; 杨福明   

  1. 北京化工大学, 北京 100029
  • 收稿日期:1999-10-18 修回日期:1999-12-29 出版日期:2000-10-20 网络出版日期:2000-10-20

Preparation of Iron-Nitride Magnetic Fluid by Vapor-Liquid Chemical Reaction

GUO Guang-Sheng; WANG Zhi-Hua; YU Shi; YANG Fu-Ming   

  1. Beijing University of Chemical Technology; Beijing 1000029; China
  • Received:1999-10-18 Revised:1999-12-29 Published:2000-10-20 Online:2000-10-20

摘要: 通过氨气和五羰基铁之间的气-液化学反应,制备出了稳定的氨化铁磁性液体.较为详细地研究了原料的配比、反应温度、表面活性剂的种类及用量等实验参数对产品性能的影响.利用XRD、TEM和振动样品磁强计(VSM)等技术对产品的化学组成、固体粒子的粒径、晶型及磁性能进行了测定.制备的磁性液体具有较高的饱和磁化强度,达到0.134T.

关键词: 磁性液体, 氮化铁, 超细粒子, 磁性能

Abstract: This paper introduced the preparation of stable iron-nitride magnetic fluid by vapor-liquid chemical reaction between
iron carbonyl and ammonia. The effects of experiment parameters, such as reactant proportion, reaction temperature, the type and the dosage of the surfactant on
product properties were studied in detail. X-ray diffraction(XRD), transmission electron microscope(TEM) and vibrating-sample magnetometer(VSM) were carried out
to measure the chemical structure, the crystal style and the magnetic property. The prepared magnetic fluids have high performances with respect to saturation magnetization, up to 0.134T.

Key words: magnetic fluid, iron-nitride, ultrafine particle, magnetic properties

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