Iron carbide-nitride supported at the surface of rGO towards enhancing the thermal decomposition of energetic molecular perovskite

In this paper, we investigated the effect of Iron carbide-nitride/reduced graphene oxide composites (FeC x N y /rGO) as catalysts on the thermal decomposition of energetic molecular perovskite (H 2 dabco)[M(ClO 4 ) 3 ] (DAPs, M = Na + , K + and NH 4 + for DAP-1, -2, and -4). FeC x N y /rGO were fabricated by two-step method combined with chemical synthesis and sinter technology of Prussian blue/reduced graphene oxide (PB/rGO). The morphology and structure of FeC x N y /rGO were characterized. The thermal decomposition performance of DAPs with FeC x N y /rGO catalyzed were studied. Results showed that FeC x N y particles with mainly Fe–C and Fe–N bonds involved were located at the surface of rGO nanosheets , the peak thermal decomposition temperature and the apparent activation energy of DAPs were both significantly decreased in the presence of FeC x N y /rGO. Among them, with 5 wt% FeC x N y /rGO-2 added, the peak temperature of DAP-1, DAP-2, and DAP-4 have been decreased by 104.8 °C, 110 °C and 102.2 °C, respectively. Their apparent activation energy decreased significantly by 4.0 kJ/mol, 74.9 kJ/mol and 66.9 kJ/mol, respectively. A possibly thermal catalysis decomposition mechanism was provided. This work provides a new idea for design and fabrication of multifunctional catalysts to enhance the thermal decomposition of energetic molecular perovskite and offers the possibility of applying DAPs to rocket solid propellant .