The Journal of Physical Chemistry C · 2019 · 21 citations · 42 references
Natural SciencesChemical EngineeringMaterials ScienceCatalysisCombustionThermal AnalysisCatalyst DesignCatalyst PreparationCatalytic MaterialsCatalytic Reaction EngineeringComposite MaterialsNanocompositesActivated CarbonActivation EnergyBurning RateCatalytic ActivityCatalytic Activity EnhancementCatalytic Thermal DecompositionMetal Oxide CatalystsThermal Decomposition
The activated carbon (AC) doped with CuO (AC-CuO) has been prepared and evaluated as a promising catalyst of energetic compositions. The catalytic activity of AC-CuO on ammonium nitrate/magnesium/nitrocellulose (AN/Mg/NC) composite has been investigated as a typical example. It has been shown that AC-CuO could greatly enhance the decomposition and combustion performances of energetic composites. Thermal analyses indicate that AC-CuO has significant catalytic effects on decomposition of the AN/Mg/NC composite by decreasing the decomposition peak temperature from 261.4 to 209.0 °C, with decreased activation energy from 90.1 to 81.5 kJ mol–1. The linear burning rate of the AN/Mg/NC composite in the presence of AC-CuO increases approximately twice (rb = 20.46 mm s–1 vs rb = 10.27 mm s–1 at a chamber pressure of p0 = 3.5 MPa).
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