Mesoporous cauliflower-like CuO/Cu(OH)_2 hierarchical structures as an excellent catalyst for ammonium perchlorate thermal decomposition

摘要

Nanostructured CuO-based materials are promising catalysts in the thermal decomposition of ammo-nium perchlorate (AP). Here, a facile ammonia-evaporation-induced fabrication of novel mesoporous nanoparticles-aggregated cauliflower-like CuO/Cu(OH)(2) structures is reported. The influence of the as-prepared material on AP decomposition was analyzed by TG and DSC and the results revealed its excel-lent catalytic performance. Adding 3 wt% CuO/Cu(OH)(2) to AP decreases the decomposition temperature by 96 degrees C, reduces the activation energy from 86 +/- 4 kJ mol(-1) to 65.2 +/- 0.6 kJ mol(-1) and increases the total heat release by 38.6%. Such catalytic activity approaches or exceeds those of the best performing CuO-based catalysts, making CuO/Cu(OH)(2) a strong candidate for use in catalyzed thermal decomposition of AP. (C) 2021 Elsevier B.V. All rights reserved.