Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (09): 2202-2208.doi: 10.3866/PKU.WHXB201206292

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles     Next Articles

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

AN Ting1, CAO Hui-Qun2, ZHAO Feng-Qi1, REN Xiao-Ning1, TIAN De-Yu2, XU Si-Yu1, GAO Hong-Xu1, TAN Yi1, XIAO Li-Bai1   

  1. 1. Science and Technology on Combustion and Explosion Laboratory, Xi?an Modern Chemistry Research Institute, Xi?an 710065, P. R. China;
    2. Shenzhen Key Laboratory of New Lithium-ion Battery and Mesoporous Materials, College of Chemistry and Chemical Engineering, Shenzhen 518060, Guangdong Province, P. R. China
  • Received:2012-03-09 Revised:2012-06-29 Published:2012-08-02
  • Contact: CAO Hui-Qun E-mail:chq0524@163.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (21173163) and Science and Technology Foundation of Science and Technology on Combustion and Explosion Laboratory, China (9140C3501041001).

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

MSC2000: 

  • O643