纳米Ag/CNTs复合材料的制备、表征及对环三亚甲基三硝胺热分解的影响

doi:10.3866/PKU.WHXB201206292

Abstract

Abstract:

Two kinds of Ag/CNTs (carbon nanotubes) nanocomposite materials were successfully prepared by silver mirror reaction and hydrothermal methods. Their physical phase, composition, morphology, and structure were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscope-energy dispersive spectrometry (SEM-EDS). Catalytic effects of the Ag/CNTs nanocomposite on the thermal decomposition of cyclotrimethylene trinitramine (RDX) were investigated by differential scanning calorimetry (DSC). Our results indicated that the irregularly globose nano-Ag particles attached to the surface of the nano CNTs evenly. The nanocomposite product prepared hydrothermally had the highest loading of nano-Ag particles and largest Ag particle size. Both Ag/CNTs nanocomposites influenced the thermal decomposition of RDX, changing the primary decomposition of the liquid phase to a secondary gas phase reaction and resulting in obvious change in the shape of the main decomposition peak. The catalytic effect of Ag/CNTs nanocomposite on the thermal decomposition of RDX was mainly exhibited at lower decomposition temperature.

Key words: Carbon nanotube, Nanocomposite, Cyclotrimethylene trinitramine, Silver mirror reaction, Hydrothermal method, Thermal decomposition

AN Ting, CAO Hui-Qun, ZHAO Feng-Qi, REN Xiao-Ning, TIAN De-Yu, XU Si-Yu, GAO Hong-Xu, TAN Yi, XIAO Li-Bai. Preparation and Characterization of Ag/CNTs Nanocomposite and Its Effect on Thermal Decomposition of Cyclotrimethylene Trinitramine[J]. Acta Phys. -Chim. Sin. 2012, 28(09), 2202-2208. doi: 10.3866/PKU.WHXB201206292

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Preparation and Characterization of Ag/CNTs Nanocomposite and Its Effect on Thermal Decomposition of Cyclotrimethylene Trinitramine

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