Catalytic Effect of Green CuO Nanoparticles on the Thermal Decomposition Kinetics of Ammonium Perchlorate

Abstract

In the present work, a green synthesis of copper oxide nanoparticles (CuO NPs) has been performed through a precipitation method using three different copper precursors and sylvestrys leaf extract as a capping agent. Morphology and structure of the obtained CuO NPs were confirmed by X‐ray diffraction (XRD), ultraviolet‐visible (UV/Vis), Fourier transform infrared (FT‐IR) and Raman spectroscopy, as well as scanning electron microscopy (SEM). Moreover, their thermal behavior and catalytic performance were studied using thermogravimetry (TG) and differential scanning calorimetry (DSC). Four isoconversional kinetic methods have been applied to the DSC data obtained at different heating rates in order to determine the kinetic triplets. The results showed that the introduction of CuO NPs has noticeably lowered the thermal decomposition temperature by 91.7, 89.9, and 83.0 °C, and increased the exothermic enthalpy by 1053, 832, and 962 J·g–1 for AP‐CuO‐S, AP‐CuO‐N, and AP‐CuO‐Cl, respectively. Furthermore, CuO NPs were found to reduce the activation energy of AP decomposition. Besides that, ammonium perchlorate decomposes following different reaction models g(α), depending on the decomposition stage and the addition of CuO NPs. These results indicate further that the green synthesized CuO nanoparticles are promising ballistic modifiers for composite solid propellants.

The effect of iron decorated MWCNTs and iron‐ionic liquid decorated MWCNTs onto thermal decomposition of ammonium perchlorate

“…The variation of the activation energy as a function of α shows their direct dependence with the type of the used nanocatalyst. Moreover, every nanocatalyst affects the decomposition mechanism of AP in different ways [37e] . Indeed, when MWCNTs is used as a catalyst, E a decreases as a function of α.…”

Optimized energetic HNTO/AN co-crystal and its thermal decomposition kinetics in the presence of energetic coordination nanomaterials based on functionalized graphene oxide and cobalt

“…On the other hand, to fully exploit EMs and ensure their energy release more efficiently, several compounds at different shape and size, known as combustion catalysts, maybe incorporated at a small amount. [30][31][32][33] Two-dimensional complex structures based on graphene oxide (GO) were reputed to be as effective energetic catalysts for several energetic materials. 34 Nowadays, a number of 2-D layered energetic hybrid crystals have been produced through the bridging of GO layers with triaminoguanidine (T) and subsequently functionalized with extra T-coordinated with transition metal ions from their respective perchlorate and nitrates.…”

New Construction of Functionalized CuO/Al2O3 Nanocomposite-Based Polymeric Sensor for Potentiometric Estimation of Naltrexone Hydrochloride in Commercial Formulations

“…Currently, several reports are focused on metal oxides, including aluminium oxide (Al 2 O 3 ), copper oxide (CuO), nickel oxide (NiO), etc. Moreover, more attention has been focused on the perspective of copper oxide in various aspects such as antibacterial agents [12], catalysis [13], food packaging [14], sensors [15] and medicine [16]. Recently, there has been a growing awareness of the development of aluminium oxide nanoparticles (Al 2 O 3 NPs) which have a high specific surface area with extraordinary optical, catalytic, thermodynamic stability properties for progressive engineering and industrial applications [17][18][19].…”