Preparation of LaMn0.4Fe0.6O3/rGO composite catalyst for the thermolysis of ammonium perchlorate

A LaMn_0.4Fe_0.6O₃/rGO (6:1) perovskite composite was developed to enhance the thermal decomposition of ammonium perchlorate (AP). Optimization using DSC showed that the composite converts AP's typical two-step decomposition into a single step and reduces the decomposition peak temperature from 351°C to 320°C at loadings of 1-5%. Structural analyses (IR, UV-Vis, XRD, and Raman) confirmed successful material formation, while FE-SEM showed uniformly distributed perovskite nanoparticles on reduced graphene oxide (rGO). BET measurements indicated a high surface area of 47.3 m²/g. An artificial neural network (ANN) model effectively predicted activation energy (MSE 0.0001-0.0017) and TG curves (MSE 0.01-0.37).