DSC/TG-MS STUDY ON IN SITU CATALYTIC THERMAL DECOMPOSITION OF AMMONIUM PERCHLORATE OVER COC2O4

Abstract In situ catalytic thermal decomposition of ammonium perchlorate (AP) was investigated over CoC 2 O 4 . The catalytic activity measurements were carried out by DSC and TG-MS. The results show that the new ecological nano-cobalt oxides exhibit better catalytic performance in thermal decomposition of AP. Adding 2% of CoC 2 O 4 to AP decreases the decomposition temperature by 104 °C and increases the heat of decomposition from 655 J/g to1469 J/g. Products of thermal decomposition of AP are H 2 O, NH 3 , O 2 , HCl, Cl 2 , NO, N 2 O, and NO 2 . The oxidation of adsorbed ammonia by cobalt oxides via the superoxide active centers takes place on the surface of cobalt oxide. The presence of oxygen can accelerate the oxidation thermal decomposition process of AP, with a clear increase in DSC heat release.