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

Abstract 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.