Abstract BaZnCuO3 (BZC) was synthesized using the sol–gel method. The BZC was incorporated in reduced graphene oxide (rGO) to produce BZC/rGO composite. The synthesized catalysts were characterized using Raman, scanning electron microscopy (SEM), powder X‐ray diffraction (XRD), and ultraviolet–visible (UV–Vis) analysis. The comparative effect of BZC and BZC/rGO composite was studied on the thermal decomposition of 3‐nitro‐3H‐1,2,4‐triazol‐5‐one (NTO) and ammonium perchlorate (AP) using the simultaneous thermogravimetric technique (TG‐DTA). Thermal investigations suggest that BZC was a better catalyst for decreasing the thermal decomposition temperature and the thermokinetic parameters of both AP and NTO compared to BZC/rGO composite. BZC can reduce the thermal decomposition temperature of AP and NTO by 121 and 46°C, respectively. The findings support BZC as a possible catalyst in the thermolysis of both NTO and AP.
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