高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (5): 684.

• 论文 • 上一篇    下一篇

影响Fe3O4超微粒子性能因素的研究

康鸿业, 王允军, 施展, 于春满, 赵慕愚   

  1. 吉林大学化学系, 130023
  • 收稿日期:1989-08-29 出版日期:1991-05-24 发布日期:1991-05-24
  • 通讯作者: 康鸿业
  • 基金资助:

    高等学校博士学科点专项科研基金

A Study on Factors Affecting the Properties of Fe3O4Ultrafine Particles

Kang Hong-ye, Wang Yun-jun, Shi Zhan, Yu Chun-man, Zhao Mu-yu   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1989-08-29 Online:1991-05-24 Published:1991-05-24

PDF (PC)

摘要： 超微Fe3O4粒子正在广泛地应用到磁流体和催化等领域。化学共沉淀法制备Fe3O4是将碱液滴入一定温度的Fe2+、Fe3+混合液中。反应式为Fe2++2Fe3++8OH-=Fe3O4+4H2O。

关键词: 化学共沉淀, 超微粒子, 磁特性

Abstract: The magnetic properties of Fe3O4ultrafine particles prepared by chemical coprecipitation are closely related to the mixing process of precipitators, the concentrations of the solution and the molar ratios of Fe2+/Fe3+/OH-, etc. We have improved the method of the chemical coprecipitation and found that there are an obvious increase in the magnetic properties and crystal degree and an obvious decrease in the size of Fe3O4ultrafine particles.

Key words: Chemical coprecipitation, Ultraf ine particle, Magnetic property

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