Topic
Ammonium perchlorate
About: Ammonium perchlorate is a research topic. Over the lifetime, 2359 publications have been published within this topic receiving 33412 citations. The topic is also known as: AP.
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TL;DR: 3D HOPC is presented as a catalyst for the thermal decomposition ofCL-20 via synthesizing a series of nanostructured CL-20/HOPC composites and demonstrates that 3D HopC is a superior catalyst for CL- 20 thermal decomposing and opens new potential for further applications of CL-21 in solid propellant development.
Abstract: High energy and low signature properties are the future trend of solid propellant development. As a new and promising oxidizer, hexanitrohexaazaisowurtzitane (CL-20) is expected to replace the conventional oxidizer ammonium perchlorate to reach above goals. However, the high pressure exponent of CL-20 hinders its application in solid propellants so that the development of effective catalysts to improve the thermal decomposition properties of CL-20 still remains challenging. Here, 3D hierarchically ordered porous carbon (3D HOPC) is presented as a catalyst for the thermal decomposition of CL-20 via synthesizing a series of nanostructured CL-20/HOPC composites. In these nanocomposites, CL-20 is homogeneously space-confined into the 3D HOPC scaffold as nanocrystals 9.2–26.5 nm in diameter. The effect of the pore textural parameters and surface modification of 3D HOPC as well as CL-20 loading amount on the thermal decomposition of CL-20 is discussed. A significant improvement of the thermal decomposition prop...
37 citations
TL;DR: In this article, the performance of the nanocomposites for thermal decomposition of ammonium perchlorate (AP) and composite solid propellants (CSPs) was investigated by simultaneous thermogravimetric analysis and differential scanning calorimetry (TGA) and ignition delay measurements.
36 citations
TL;DR: In this article, the effects of nanoparticles on the thermal decomposition of ammonium perchlorate (AP) were examined by differential scanning calorimetery and thermogravimetery analyses.
Abstract: ZnAl2O4 and ZnMn2O4 nanoparticles were synthesized by a modified co-precipitation method and characterized by means of Fourier transform infrared spectroscopy, X-ray diffraction, energy-dispersion X-ray spectrometer, and their morphology investigated by means of scanning electron microscopy The effects of these nanoparticles on the thermal decomposition of ammonium perchlorate (AP) were examined by differential scanning calorimetery and thermogravimetery analyses The results revealed that ZnAl2O4 nanoparticles have little catalytic effect on this process, but ZnMn2O4 nanoparticles have good catalytic effect on decreasing the decomposition temperature of AP and increasing the released heat ZnAl2O4 and ZnMn2O4 nanoparticles increased the released heat of AP decomposition from 400 to about 736 and 1130 Jg−1, respectively, and AP decomposition temperature decreased from 420 to 400 and 358 °C in the same order The higher catalytic activity of ZnMn2O4 can be due to its p-type semiconductivity and the presence of some positive hole and defects Also, the kinetic parameters such as pre-exponential factor and activation energy were calculated using Kissinger method
36 citations
36 citations
TL;DR: In this article, ammonium perchlorate (AP)-based molecular perovskite structural high-energetic materials (H2dabco)[NH4(ClO4)3] (DAP) were fabricated and their catalytic performance upon the addition of AP was evaluated.
Abstract: In this study, ammonium perchlorate (AP)-based molecular perovskite structural high-energetic materials (H2dabco)[NH4(ClO4)3] (DAP) were fabricated and their catalytic performance upon the addition...
36 citations