Thermal Behavior and Thermolysis Mechanisms of Ammonium Perchlorate under the Effects of Graphene Oxide-Doped Complexes of Triaminoguanidine

Several transition metal complexes of triaminoguanidine (TAG) nitrate, TAG-Ni, TAG-Co, GO/TAG-Ni (GT-Ni), GO/TAG-Co (GT-Ni), GO/TAG-Ni (GT-Ni)) were prepared using graphene oxide (GO) as a stabilizer. It has been shown that these complexes are promising energetic catalysts for decomposition of ammonium perchlorate (AP), which was uniformly coated with the mentioned catalysts. The decomposition kinetic parameters and mechanisms of the complexes have been studied by means of DSC/TG techniques. Results show that the presence of GO in such hybrid catalysts is able to stabilize AP before its decomposition, but the strong catalytic effects occur on the HClO4 as the intermediate of the initial decomposition of AP. In the cases of TAG-Co, GT-Co, and GT-Cu, they would make the two-step decomposition of AP into a single step. The heat releases have been greatly increased as well due to a more complete decomposition. More importantly, the thermolysis mechanism of AP could be changed by simply modifying the type of m...