首页|Tailor made CuO/ZIF-8 hybrid structure as a potential candidate for thermocatalytic degradation of nitrocellulose
Tailor made CuO/ZIF-8 hybrid structure as a potential candidate for thermocatalytic degradation of nitrocellulose
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NSTL
Elsevier
CuO/ZIF-8 hybrid structure was obtained by adding the PVP-modified foliaceous CuO microstructures during the preparation of ZIF-8 polygon particles as a promising candidate for promoting the thermolysis process of NC. Thermoanalysis and pyrolysis kinetics based on the DSC and TG/DTG data revealed that the CuO/ZIF-8-NC decomposition had a weightlessness rate of 77.81%, heat release of 2882.5 J.g(-1), the exothermic peak temperature of 471.25 K, and activation energy of 172.2 +/- 16.0 kJ.mol(-1), indicating that CuO/ZIF-8 has better catalytic activity than CuO and ZIF-8. The reconstructed nth-order kinetic models for NC/catalysis complexes were obtained using a modified fitting algorithm based on the results of isoconversional kinetic analysis, indicating that CuO/ZIF-8, CuO, and ZIF-8 had different catalytic effects on the thermolysis pathways of NC. This study suggests that CuO/ZIF-8 composite may have prospective application as a high potential and unique catalyst for accelerating NC pyrolysis.
Metal oxides/MOFsCatalytic activityPyrolysis mechanismModel reconstructionCOMBINED KINETIC-ANALYSISTHERMAL-DECOMPOSITIONELECTRONIC-PROPERTIESMASTER PLOTSBAND-GAPMETALFRAMEWORKSNANOPARTICLESSTRATEGYBEHAVIOR
NSTL
Elsevier
