中文摘要：

采用HLG-5型纳米化粉碎机批量制备了纳米Fe2O3。通过X射线衍射仪（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）对Fe2O3颗粒的结构、大小及形貌进行了表征,并采用差示扫描量热仪（DSC）研究了纳米Fe2O3对不同粒度高氯酸铵（AP）的热分解性能的影响。结果表明,制备的Fe2O3颗粒大小约13 nm,为α-Fe2O3,呈类球形。2%含量的纳米Fe2O3对6μm AP具有更好的催化性能,可使其高、低温分解峰分别降至392.1、298.2℃;表观分解热增加至1 519 J/g;反应速度常数明显提高。

英文摘要：

Nano-Fe2O3 was successfully prepared in large-scale using the HLG-5 grinder. The microstructure,size and morphology of Fe2O3 particles were characterized by X-ray diffraction（ XRD）,scanning electron microscopy（ SEM） and transmission electron microscopy（ TEM）. The catalytic effects of nano-Fe2O3 on thermal decomposition of ammonium perchlorate（ AP） with different size were investigated by DSC. The results show that nano-Fe2O3 could be indexed as a pure α-Fe2O3 and have a semi-spherical morphology with a fairly uniform size of 13 nm. Furthermore,the nano-sized Fe2O3 has the optimal catalytic effect on thermal decomposition of 6 μm AP at a mass fraction of 2%,the peak temperatures of high and low temperature decomposition of AP decrease to392. 1 ℃ and 298. 2 ℃,respectively,the apparent thermal decomposition of AP increases to 1 519 J / g,and the reaction rate constant of AP also increases obviously.