Thermal decomposition and combustion characteristics of molecular perovskite energetic material DAP-4 catalyzed by Co3O4 nanoclusters

Co3O4 nanoclusters were prepared by the gas phase precipitation method. The heating pyrolysis characteristics of molecular perovskite-based energetic material (H(2)dabco)[NH4(ClO4)(3)] (DAP-4) by using Co3O4 nanocluster catalysts was studied. Results showed that when 5mass% Co3O4 added, the initial pyrolysis temperature and the DTG peak temperature of DAP-4 were reduced to 256.8 celcius and 340 celcius, respectively, at the heating rate of 10 K min(-1). When the average particle size (D-50) of Co3O4 was 694 nm, the activation energy (E-a) required for heating catalytic pyrolysis of DAP-4 with the presence of Co3O4 decreased to 140.8 kJ mol(-1) (Kissinger's method) and 143.6 kJ mol(-1) (Ozawa's method). The heating catalytic pyrolysis mechanism of Co3O4 nanoclusters for the heating pyrolysis of DAP-4 was proposed. This work is helpful to understand further the heating catalytic pyrolysis characteristics of molecular perovskite-based energetic materials with metal oxide nanoclusters.