ABSTRACT In this study, ammonium perchlorate (AP)-based molecular perovskite structural high-energetic materials (H2dabco)[NH4(ClO4)3] (DAP) were fabricated and their catalytic performance upon the addition of MoS2 nanosheets was investigated. The DAP samples were succesfully prepared via a self-assembly reaction and their morphology and structure were characterized via scanning electron microscopy, X-ray diffractometry, and Fourier transform infrared spectroscopy. The thermal decomposition performance of a pure DAP sample and of a mixture of DAP with MoS2 nanosheets were analyzed via differential scanning calorimetry. The results show that DAP has a high thermal stability at its initial decomposition temperature of 319.8°C, and that its apparent decomposition heat measures 4199 J/g. This value is higher than for AP (829.7 J/g). Furthermore, the thermal decomposition peak temperature of DAP upon the addition of 1 wt% and 3 wt% MoS2 nanosheets decreases from 394.4°C to 343.3°C and 328.8°C, respectively. The investigation of the catalysis thermal performance of DAP may foster its practical application in composite propellant.

中文翻译：

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基于高氯酸铵的分子钙钛矿含能材料：MoS2 的制备、表征和热催化性能

摘要 本研究制备了高氯酸铵 (AP) 基分子钙钛矿结构高能材料 (H2dabco)[NH4(ClO4)3] (DAP)，并研究了添加 MoS2 纳米片后的催化性能。通过自组装反应成功制备了 DAP 样品，并通过扫描电子显微镜、X 射线衍射和傅里叶变换红外光谱对其形貌和结构进行了表征。通过差示扫描量热法分析纯 DAP 样品和 DAP 与 MoS2 纳米片的混合物的热分解性能。结果表明，DAP在319.8℃的初始分解温度下具有较高的热稳定性，表观分解热为4199 J/g。该值高于 AP (829.7 J/g)。此外，添加 1 wt% 和 3 wt% MoS2 纳米片后 DAP 的热分解峰值温度分别从 394.4°C 降低到 343.3°C 和 328.8°C。DAP 催化热性能的研究可能会促进其在复合推进剂中的实际应用。