In situ synthesis of cobalt alginate/ammonium perchlorate composite and its low temperature decomposition performance

To prevent from agglomeration of nano-catalysts, the idea of in situ synthesis was applied to study on thermal decomposition of ammonium perchlorate (AP). Herein, we reported a feasible approach to prepare cobalt alginate/ammonium perchlorate (CA/AP) composite by ionic crosslinking solidification method and the catalytic performance on the thermal decomposition of AP was investigated. The surface morphology and composition of samples were characterized by SEM, EDS , XRD , FT-IR and XPS . Also, the catalytic thermal decomposition of AP was characterized by DSC . The thermal decomposition temperatures of composite prepared by 2, 4, 6 and 8   wt% Co(NO 3 ) 2 which were respectively decreased in the exothermic peak of AP by 79.0, 89.8, 89.3 and 92.7   ℃. In a word, all the results indicated that CA/AP composite could lower the decomposition temperature due to not agglomeration. Therefore, CA/AP composite shows a broad application prospects in the field of AP-based propellant.