Fe2O3/CNTs纳米粒子的制备及其对高氯酸铵燃速的催化作用

采用液相沉淀法制备沉积于碳纳米管（CNTs）表面的Fe2O3复合纳米催化剂，用透射电子显微镜（TEM）和光电子能谱（XPS）对制备的Fe2O3／CNTs复合纳米催化剂进行表征，研究了Fe2O3／CNTs复合纳米催化剂对高氯酸铵（AP）燃烧的催化性能。结果表明，纳米级Fe2O3颗粒均匀包覆在CNTs表面，Fe2O3／CNTs复合纳米催化剂能明显降低AP的分解温度，提高AP单元推进剂的燃速；Fe2O3／CNTs复合纳米催化剂对AP的催化活性明显优于纳米Fe2O3、纳米Fe2O3和CNTs的简单混合催化剂。

Preparation of Ferric Oxide/Carbon Nanotubes Composite Nano-Particles and Catalysis on Burning Rate of Ammonium Perchlorate

Carbon nanotubes(CNTs) supporting ferric oxide(Fe_2O_3) as composite nano-particles catalyst was prepared by the liquid phase precipitation method,and was characterized by transmission electron microscopy(TEM) and X-ray photoelectron spectroscopy(XPS).The effect of Fe_2O_3/CNTs composite nano-particles catalyst on the combustion of ammonium perchlorate(AP) was studied.The results show that nano-Fe_2O_3 was coated uniformly on the surface of CNTs.Thermal decomposition temperature of AP adding CNTs/Fe_2O_3 composite nano-particles catalyst decreases significantly,and the burning rate of AP adding CNTs/Fe_2O_3 composite nano-particles catalyst was improved.Catalytic properties of CNTs/Fe_2O_3 composite nano-particles is superior to that of nano-Fe_2O_3 and the simple mixture of CNTs and nano-Fe_2O_3.