Thermal decomposition and combustion characteristics of molecular perovskite energetic material DAP-4 catalyzed by Co 3 O 4 nanoclusters

Co 3 O 4 nanoclusters were prepared by the gas phase precipitation method. The heating pyrolysis characteristics of molecular perovskite-based energetic material (H 2 dabco)[NH 4 (ClO 4 ) 3 ] (DAP-4) by using Co 3 O 4 nanocluster catalysts was studied. Results showed that when 5mass% Co 3 O 4 added, the initial pyrolysis temperature and the DTG peak temperature of DAP-4 were reduced to 256.8 ℃ and 340 ℃, respectively, at the heating rate of 10 K min −1 . When the average particle size ( D 50 ) of Co 3 O 4 was 694 nm, the activation energy ( E a ) required for heating catalytic pyrolysis of DAP-4 with the presence of Co 3 O 4 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 Co 3 O 4 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.