Catalysis of Active Carbon Supporting Transition Metal Oxides for Pyrotechnical Reagent with Potassium Perchlorate

In order to improve the pyrotechnical reagent with potassium perchlorate, composite catalyst of active carbon supporting transition metal oxides (TMO), Fe ₂O ₃and CuO, were prepared and added into pyrotechnical reagent with potassium perchlorate. Accelerating rate calorimeter (ARC) was used to study the catalysis of pyrotechnical reagent which is consisted of potassium perchlorate and composite catalyst. Composite catalyst of both Fe ₂O ₃and CuO supported by active carbon can catalyze pyrotechnical reagent with potassium perchlorate. Furthermore, it can lower the apparent activation energy and accelerate the reaction with a smaller quantity than that with Fe ₂O ₃and CuO. The maximal reaction rate of pyrotechnical reagent with potassium perchlorate mixed with Fe ₂O ₃/active carbon and CuO/active carbon is 8.31min ^-1and 9.13min ^-1, which is 1.74times and 1.91times of pyrotechnical reagent mixed with no catalyst; time to maximal rate was 18.99min and 1.96min respectively, which is lower than pyrotechnical reagent mixed with no catalyst by 86.46% and 98.67%; the apparent activation energy is 368.10kJ ·mol ^-1and 325.29kJ ·mol ^-1, which is lower than pyrotechnical reagent mixed with no catalyst by 31.89% and 39.81% respectively.