Abstract
3,4-Di(nitramino)furazan (DNAF) offers advantages like simple synthesis, high oxygen content, and strong detonation, but suffers from low thermal stability (Td = 99 ℃) and mechanical sensitivity (IS < 1 J, FS < 5 N). In this study, we designed a series of Co(II) and Ni(II) energetic complexes (ECP-1 to ECP-8, Energetic Complex Polymer) based on it, which showed improved thermal stability (Td = 239.5‒253.0 ℃) and reduced sensitivity (IS ≥ 10 J, FS ≥ 172 N), along with high energy content (D = 7345‒8041 m·s-1, P = 21.83‒2.0 GPa). Evaluation through TG-DSC revealed that just 2 wt% of these complexes could lower the decomposition temperature of ammonium perchlorate (AP) effectively by 48.11‒119.33 °C, reduce its activation energy by 110.65‒156.10 kJ·mol-1, and increase combustion rate by 14‒38%. This study provides insights into stabilizing 3,4-di(nitramino)furazan through coordination complexes, with potential applications as combustion additives for solid propellants.