Acta Phys. -Chim. Sin. ›› 2000, Vol. 16 ›› Issue (02): 170-174.doi: 10.3866/PKU.WHXB20000214

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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

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