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›› 2004, Vol. 4 ›› Issue (2): 146-149.

• 过程与工艺 • 上一篇    下一篇

δ-FeOOH的制备及热处理产物的FTIR光谱

孟哲,贾振斌,魏雨   

  1. 河北师范大学化学学院
  • 出版日期:2004-04-20 发布日期:2004-04-20

Preparation and FTIR Spectra of Amorphous δ-FeOOH

MENG Zhe,JIA Zhen-bin,WEI Yu   

  1. 河北师范大学化学学院
  • Online:2004-04-20 Published:2004-04-20

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被引次数

72

摘要： 通过红外光谱、差热分析、透射电镜等测试手段观察了非晶态d-FeOOH热处理的相转化温度及相转化过程. 实验结果表明，在空气气氛中，非晶态d-FeOOH对热敏感，直接相转化为纳米级a-Fe2O3, 且其热处理过程只伴随微量的g-FeOOH生成.

关键词: δ-FeOOH, α-Fe2O3, 热分解, 相变

Abstract: Phase transformation temperature and process of thermal treatment to amorphous δ-FeOOH particles were clarified by differential thermal analysis (DTA), infrared spectroscopy (IR) and transmission electron microscopy (TEM). According to preliminary experiments in air, amorphous d-FeOOH is sensitive to heat and directly transformed into a-Fe2O3 nanoparticles. Further more, during the course of the thermal treatment, tiny FeOOH is produced.

Key words: δ-FeOOH, α-Fe2O3, thermal treatment, phase transformation