大学化学 >> 2018, Vol. 33 >> Issue (4): 51-56.doi: 10.3866/PKU.DXHX201711002

化学实验 上一篇    下一篇

纳米Fe2O3和Fe3O4的制备及其催化高氯酸铵热分解性能的研究——一个仪器分析综合实验

王晓玲,龚楚清,钟亚兰,黄驰*()   

  • 收稿日期:2017-11-01 发布日期:2018-04-08
  • 通讯作者: 黄驰 E-mail:chihuang@whu.edu.cn
  • 基金资助:
    国家“基础学科拔尖学生培养试验计划”研究课题(20160210);湖北省高等学校教学研究项目(2014011)

Preparation of Fe2O3 and Fe3O4 Nanoparticles and the Catalytic Performance for Thermal Decomposition of Ammonium Perchlorate

Xiaoling WANG,Chuqing GONG,Yalan ZHONG,Chi HUANG*()   

  • Received:2017-11-01 Published:2018-04-08
  • Contact: Chi HUANG E-mail:chihuang@whu.edu.cn
  • Supported by:
    国家“基础学科拔尖学生培养试验计划”研究课题(20160210);湖北省高等学校教学研究项目(2014011)

摘要:

介绍一个仪器分析综合实验——纳米Fe2O3和Fe3O4的制备及其催化高氯酸铵热分解性能的研究。采用水热法合成纳米Fe3O4,进而煅烧得到纳米Fe2O3。使用X射线粉末衍射(XRD)对制得的样品结构进行表征,通过透射电镜(TEM)可以发现其为球形颗粒,粒径在10-20 nm范围内。将制得的纳米Fe2O3和纳米Fe3O4按不同比例加入高氯酸铵(AP)中,通过对混合物进行热分析(TG-DSC),发现纳米Fe2O3和纳米Fe3O4可以明显促进AP的分解,且Fe2O3的催化效果优于Fe3O4的催化效果,并对催化机理进行了简单讨论。通过该实验,可以让学生学习水热反应的方法,掌握利用XRD、热分析等多种手段对化合物结构及性能进行表征的技能。

关键词: 纳米Fe2O3, 纳米Fe3O4, 高氯酸铵, 热分析, 催化

Abstract:

The Fe3O4 and Fe2O3 nanoparticles were successfully prepared by hydrothermal method. The Fe3O4 and Fe2O3 nanoparticles were characterized by X-ray powder diffraction (XRD) and the transmission electron microscopy (TEM).The obtained Fe3O4 and Fe2O3 were spheres and the diameter was about 10-20 nm. The catalysis activity of Fe3O4 and Fe2O3 on the thermal decomposition of ammonium perchlorate (AP) was appraised by thermalanalysis (TG-DSC). It was found that Fe2O3 and Fe3O4 nanoparticles had high catalysis activity on decomposition of AP. The results can be used as a comprehensive experimental course in the instrument analysis laboratroy. The students can learn the hydrothermal method and learn how to use XRD, thermal analysis and other means to characterize the compounds.

Key words: Fe2O3 nanoparticles, Fe3O4 nanoparticles, Ammonium perchlorate, Thermal analysis, Catalysis

MSC2000: 

  • G643