Study of the thermal catalysis decomposition of ammonium perchlorate-based molecular perovskite with titanium carbide MXene

Abstract

In this study, we reported that two-dimensional titanium carbide (Ti3C2) MXene has intrinsic catalytic activity for thermal decomposition of high-energy ammonium perchlorate-based molecule perovskite (H2dabco)[NH4(ClO4)3] (DAP-4). The micro morphology and structure of Ti3C2 MXene were characterized. Thermal catalysis decomposition of DAP-4 using Ti3C2 as a novel catalyst was investigated by Differential scanning calorimetry (DSC). The results showed that with 10 wt% Ti3C2 added, the decomposition temperature of DAP-4 was reduced to 341.2 °C at the heating rate of 10 °C·min−1, which decreased by 43.8 °C from raw DAP-4 (385 °C). The activation energy of DAP-4 thermal decomposition effectively reduced from 181 kJ mol−1 to 155 kJ mol−1. A possible mechanism of Ti3C2 MXene for the catalysis thermal decomposition of DAP-4 was proposed. This work provides a proof-of-principle concept for the thermal catalysis decomposition of ammonium perchlorate-based molecule perovskite energetic materials using the titanium carbide MXene as a catalyst.