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

Abstract

A new co-crystal based on AN and HNTO has been developed and its thermal decomposition behavior through the incorporation of energetic coordination nanomaterials based on functionalized graphene oxide and cobalt has been elucidated.

Effect of copper ferrite (CuFe2O4) in the thermal decomposition of modified nitrotriazolone

“…The kinetic parameters 29 were calculated using the following equation:where T p denotes the peak temperature, the Boltzmann constant ( K B ) = 1.381 × 10 −23 J K −1 and Planck constant ( h ) = 6.626 × 10 −34 J s, β denotes the heating rate, E a denotes the activation energy, and A denotes the preexponential factor.…”

“…During catalytic decomposition of NTO or nNTO, there were two exothermic peaks observed -a lower temperature decomposition associated with intermediate transition state molecular exothermic decomposition, and higher temperature decomposition associated with complete decomposition of NTO or nNTO. The kinetic parameters 29 were calculated using the following equation:…”

“…However, research has been carried out to increase the thermal decomposition performance of NTO by use of additives such as metal oxides that form co-crystals with other HEMs such as HNTO/AN, preparing nanosized particles of HEMs, and the use of polymers coordinated with graphene oxide (GO)-functionalized catalysts that can directly impart a great influence in the burning and combustion performance of chemical propulsion systems. [29][30][31][32][33][34][35] To gain increased insight into the effect of the nano-size of catalysts, the synthesis and properties of various catalysts such as metal oxides, 23 metals, 24 ferrites, 25 and mixed metal ferrites 26 have been deeply studied to mainly ascertain how they affect the thermal decomposition of NTO. These are helpful to identify ferrite synthesis that can occur on a laboratory scale, with low cost and reproducible processes, and does not require specialized equipment systems.…”

Thermal decomposition of ammonium nitrate (AN) in the presence of the optimized nano-ternary transition metal ferrite CoNiZnFe2O4

“…The AN + CoNiZnFe 2 O 4 mixture decomposes similarly to AN except that the endotherm of AN (B290 1C) is converted to exotherm (B270 1C) in the presence of CoNiZnFe 2 O 4 , which has also been reported in previous literature. 2,[38][39][40] The exotherm for AN + CoNiZnFe 2 O 4 is…”

Interfacial engineered RDX/TATB energetic co-particles for enhanced safety performance and thermal stability

“…Unfortunately, the formation of energetic co-crystals requires two matched explosives in a specific proportion, causing visible limitations for the co-crystal strategy. 18 Doping, embedding or coating 19–21 with inert materials provides another way to greatly reduce the mechanical sensitivity of HEDMs, such as RDX/cellulose nanofibers 22 and RDX-polydopamine. 23 However, the addition of inert materials may give rise to a weakened energy density of EMs.…”