超级铝热剂Al/CuO前驱体的制备、表征、热分解机理及非等温分解反应动力学

doi:10.3866/PKU.WHXB20110213

Abstract

Abstract:

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).

Key words: Super thermite, Al/CuO, Sol-gel method, Thermal decomposition mechanism, Decomposition reaction kinetics

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 Phys. -Chim. Sin. 2011, 27(02), 281-288. doi: 10.3866/PKU.WHXB20110213

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

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