Citation: AN Ting, ZHAO Feng-Qi, YI Jian-Hua, FAN Xue-Zhong, GAO Hong-Xu, HAO Hai-Xia, WANG Xiao-Hong, HU Rong-Zu, PEI Qing. Preparation, Characterization, Decomposition Mechanism and Non-Isothermal Decomposition Reaction Kinetics of the Super Thermite Al/CuO Precursor[J]. Acta Physico-Chimica Sinica, ;2011, 27(02): 281-288. doi: 10.3866/PKU.WHXB20110213 shu

Preparation, Characterization, Decomposition Mechanism and Non-Isothermal Decomposition Reaction Kinetics of the Super Thermite Al/CuO Precursor

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

Received Date: 12 August 2010
Available Online: 27 December 2010
Fund Project: 国家自然科学基金(20573098) (20573098)火炸药燃烧国防科技重点实验室基金(9140C3501041001)资助项目 (9140C3501041001)

The super thermite Al/CuO precursor was prepared using Cu(NO₃)₂·3H₂O, C₂H₅OH, 1,2-epoxy propane and nano-Al as raw materials under ultrasonic conditions by the sol-gel method. Our results show that the precursor components are Al and Cu₂(OH)₃NO₃. The thermal behavior and thermal decomposition mechanism of the nano super thermite Al/CuO precursor were investigated by thermogravimetric- differential scanning colorimetric-Fourier transform infrared spectrum-mass spectrometry analysis (TG- DSC-FTIR-MS). The decomposition reaction kinetics of the precursor was investigated by TG-DTG analysis at different heating rates and the kinetic parameters were calculated using six kinetic analytical methods. The activation energy, reaction order, frequency factor and other kinetic parameters were obtained and the kinetic equation of the decomposition process could be expressed as: dα/dt=10^14.0×4α^3/4exp(-2.0×10⁴/T).
- Super thermite,
- Al/CuO,
- Sol-gel method,
- Thermal decomposition mechanism,
- Decomposition reaction kinetics
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