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Citation: ZHANG Heng, ZHAO Feng-Qi, YI Jian-Hua, ZHANG Xiao-Hong, HU Rong-Zu, XU Si-Yu, REN Xiao-Ning. Preparation, Thermal Behavior and Non-isothermal Decomposition Reaction Kinetics of Zr(3-NO₂-PHT)₂·2H₂O[J]. Acta Physico-Chimica Sinica, ;2008, 24(12): 2263-2267. doi: 10.3866/PKU.WHXB20081219 shu

Preparation, Thermal Behavior and Non-isothermal Decomposition Reaction Kinetics of Zr(3-NO₂-PHT)₂·2H₂O

1.
Xi’an Modern Chemistry Research Institute, Xi’an 710065, P. R. China

Received Date: 1 August 2008
Available Online: 29 October 2008

Zirconium 3-nitrophthalate (Zr(3-NO2-PHT)2·2H2O) was synthesized using 3-nitrophthalic acid, sodium hydroxide, and zirconyl nitrate as raw materials. Its structure was determined by elemental analysis, X-ray fluorescence and FT-IR spectra. The thermal decomposition mechanism and kinetic parameters of the decomposition reaction for Zr(3-NO2-PHT)2·2H2O were investigated by temperature-programmed TG-DTG and condensed-phase thermolysis/FT-IR techniques. A kinetic equation for the decomposition reaction was obtained. The results showed that Zr(3-NO2-PHT)2·2H2O underwent a four-stage decomposition process and that the main decomposition reaction occurred during the second process. The apparent activation energy (Ea) and pre-exponential factor (A) of the main decomposition reaction are 158.84 kJ·mol-1 and 109.85 s-1, respectively. The kinetic equation can thus be expressed as: dα/dt=10^9.85(1-α)e^-1.91×10⁴/T.
- Zr(3-NO2-PHT)2·2H2O,
- Thermal decomposition mechanism,
- Nonisothermal reaction kinetics
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Preparation, Thermal Behavior and Non-isothermal Decomposition Reaction Kinetics of Zr(3-NO2-PHT)2·2H2O

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通讯作者: 陈斌, bchen63@163.com

Preparation, Thermal Behavior and Non-isothermal Decomposition Reaction Kinetics of Zr(3-NO₂-PHT)₂·2H₂O