Boron has a high calorific value and good application prospects in energetic materials. However, further applications of boron are hindered by its incomplete combustion. MoO₃ has good catalytic properties, and its layered structure can provide good ion flow channels and embedding positions. In this study, mechanical mixtures of B/MoO₃ and B/Mo were prepared. The promotion of B combustion by MoO₃ and Mo was confirmed via combustion heat and burning rate tests. The mechanism by which Mo/MoO₃ promote B combustion was studied by thermal analysis, high-temperature in situ X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. The maximum heat release and burning rate of B/MoO₃ and B/Mo were 2.49 and 2.62 and 2.67 and 2.55 times, respectively, those of raw boron. A pre-ignition reaction occurred when boron first came into contact with the surface of MoO₃. The oxygen vacancies on the MoO₃ surface served as reaction sites for boron. MoO₃ promoted the combustion of B by opening up oxygen channels and improving the oxygen transport capability. Mo also effectively promoted boron combustion. B/Mo and B/MoO₃ have promising future applications as high energy release materials.

硼在含能材料中具有较高的热值和良好的应用前景。然而，硼的不完全燃烧阻碍了硼的进一步应用。MoO ₃具有良好的催化性能，其层状结构可以提供良好的离子流动通道和嵌入位置。在这项研究中，制备了 B/MoO ₃和 B/Mo 的机械混合物。通过燃烧热和燃烧速率测试证实了 MoO ₃和 Mo促进 B 燃烧。通过热分析、高温原位X射线衍射、X射线光电子能谱和拉曼光谱研究了Mo/MoO ₃促进B燃烧的机理。B/MoO ₃的最大放热和燃烧速率和 B/Mo 分别是原硼的 2.49 和 2.62 倍以及 2.67 和 2.55 倍。当硼第一次接触到 MoO ₃的表面时会发生预燃反应。MoO ₃表面上的氧空位充当硼的反应位点。MoO ₃通过打开氧通道和提高氧传输能力促进B的燃烧。Mo还有效地促进了硼的燃烧。B/Mo和B/MoO ₃作为高能释放材料具有广阔的应用前景。