(458j) Molecular Perovskites for Energetic Applications

Recently our group has synthesized energetic perovskites following published methods by Chen et al. These unique materials, as their name implies, have the structures of ABX₃, which topologically mimic the cubic structure of the very well-known inorganic perovskites such as strontium titanate, but they contain both fuel and oxidizer. For example, the crystals synthesized with DABCO and ammonium perchlorate, have a calculated I_sp of 344s, which is more than double of AP. They are thermally stable to 365 °C and have sensitivity on par with RDX or lower. In this study we report morphology and size effects for these materials as a function of synthesis conditions (concentrations, temperatures, synthesis medium). The crystals are then used in a baseline propellant formulation and combustion performance characterized.