The catalytic decomposition and kinetic analysis of ammonium perchlorate on MgO nanoflakes

Abstract

The catalytic decomposition of ammonium perchlorate (AP) by magnesium oxide (MgO) nanoflakes (NFs) with hexagonal and quasi-circular structures was investigated. MgO NFs were synthesized by hydrothermal process and characterized by TEM, FESEM, XRD and BET. Catalytic activities of MgO NFs were researched via TG-DSC analysis. After MgO NFs were added to AP, the temperature of AP decomposition rose in the first exothermic stage and reduced in the second exothermic stage. The catalytic performances of MgO NFs depended on the mass fraction in AP. MgO NFs with 2% (wt%) addition exhibited the highest catalytic efficiency. The kinetics of AP decomposition was studied by using Kissinger plot method. The results showed that MgO NFs had obvious influences on the kinetic parameters in the different stages of AP thermal decomposition.