3D porous nano Co3O4/C composite catalyst for the thermal decomposition of ammonium perchlorate

Abstract

In this work, nano Co3O4/C composite catalyst was in-situ synthesized on sponge by high-temperature calcination, and as a catalyst for the thermal decomposition of AP. SEM, EDS, XRD and BET analyses showed that the prepared samples were evenly distributed and nano-sized Co3O4/C composites. Moreover, the catalytic effect of the nanocomposite catalyst on the thermal decomposition of AP was studied by DSC and TG. The influence of different factors on the thermal decomposition performance of AP were studied. The results indicated that when the Co3O4/C composite catalyst content was 5 wt%, the high-temperature decomposition (HTD) peak of AP was reduced from 430.1 to 319.0 ℃ and the activation energy from 237.5 down to 81.1 kJ mol−1. In addition, the possible catalytic mechanism was also briefly discussed. Therefore, all the results indicated that the 3D porous nano Co3O4/C composite catalyst demonstrated excellent catalytic performance for the thermal decomposition of AP.