物理化学学报 >> 2000, Vol. 16 >> Issue (02): 170-174.doi: 10.3866/PKU.WHXB20000214

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纳米钛酸钡生成的热分解机理

李青莲, 陈寿田, 姚朴, 魏国, 曲永和   

  1. 西安交通大学电力设备电气绝缘国家重点实验室，西安 710049|陕西应用物理化学研究所，西安 710061
  • 收稿日期:1999-03-08 修回日期:1999-06-08 发布日期:2000-02-15
  • 通讯作者: 李青莲

Thermal Decomposation Mecharism of the Nano-BaTiO2 Formation

Li Qing-Lian, Chen Shou-Tian, Yao Pu, Wei Guo, Qu Yong-He   

  1. State Key Laboratory of Electrical Insulation for Powr Equipment of Xi'an Jiaotong University,Xi'an 710049|Shaanxi Applied Physical Chemistry Institute,Xi'an 710061
  • Received:1999-03-08 Revised:1999-06-08 Published:2000-02-15
  • Contact: Li Qing-Lian

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关键词: 纳米钛酸钡, 溶胶-凝胶, 动力学, 活化能

Abstract:

Thermal decomposition reaction mechanism of the precursor gel made by sol gel process for nano-crystalline BaTiO3 was studied by TG DTG and FTIR techniques. The reaction proceeded in three stages: solvents removing, organic ligands decomposing, and amorphous solid BaTiO3 forming. The differential and intergral mechanism functions and activation energy for the third stage were obtained by calculation and comparson.

Key words: Nano-BaTiO2, Sol-gel, Decomposing kinetics, Actvation energy