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应用科学学报 ›› 2000, Vol. 18 ›› Issue (2): 171-174.

• 论文 • 上一篇    下一篇

超微粒子氧化铁的制备研究

曹维良, 张敬畅, 石锦华, 于定新   

  1. 北京化工大学应用化学系, 北京 100029
  • 收稿日期:1998-11-14 修回日期:1999-01-09 出版日期:2000-06-30 发布日期:2000-06-30
  • 作者简介:曹维良(1942-),男,吉林昌图人,教授;张敬畅(1942-),女,辽宁锦州人,教授,博导.
  • 基金资助:
    国家自然科学基金资助项目(29643001);一碳化工国家重点实验室资助项目(96202)

Study on the Preparation of Nanometer Ferric Oxide in Terms of SCFD Technique

CAN Wei-liang, ZHANG Jing-chang, SHI Jin-hua, YU Ding-xin   

  1. Department of Applied Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:1998-11-14 Revised:1999-01-09 Online:2000-06-30 Published:2000-06-30

PDF

125

被引次数

58

摘要： 用sol-gel和SCFD技术制备了超微粒子氧化铁,采用TEM、XRD等手段对其物性进行了表征.考察了制备条件对产物粒径、形貌及晶型的影响.研究发现采用SCFD技术制备超微粒子氧化铁可实现干燥、晶化一步完成.

关键词: 超微粒子, 超临界流体干燥, 氧化铁, 气凝胶

Abstract: Nanometer ferric oxide were prepared by sol-gel and supercritical fluid drying (SCFD) method. The nanometer ferric oxide powders were characterized in terms of XRD, and TEM techniques. The dependence of particle size on preparation conditions was also investigated. It was found that the drying and crystal can be achieved in one step by the SCFD technique.

Key words: supercritical fluid drying, gasgel, ferric oxide, ultrafine particle

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