مطالعه اثر کاتالیستی اکسید روی (ІІ) (ZnO)با مورفولوژی متفاوت بر تجزیه حرارتی آمونیوم دی نیترآمید (ADN)

Ammonium dinitramide (ADN) with a positive oxygen balance (25.8%) is a metal free- energetic compound, which is used in military explosives and smokeless or green solid propellants. Combustion products of solid propellants based on ADN are clean and smokeless and they do not release hydrogen chloride gas, which can be an excellent alternative compound as an oxidizer in the solid propellant formulation. Therefore, it is essential to study the thermal decomposition of ADN in the presence of catalysts. In this study, the catalytic effect of zinc oxide (ZnO) with different morphologies including decorated-nanoparticles, sub-microrods, microrods, and nanorods on ADN, was investigated. Samples were mixed by both physical and solvent methods. Finally, the catalytic effect of ZnO with different morphologies was investigated on the thermal decomposition of ADN by differential scanning calorimetry (DSC). Results showed that adding ZnO reduces the decomposition temperature of ADN. Also, ADN decomposes explosively in one step and in a shorter time in the presence of some morphologies of ZnO. In general, in the mechanical method, Microrods and Sub-Microrods samples have more desirable catalytic effects.