Fe_2O_3/CNTs纳米粒子的制备及其对高氯酸铵燃速的催化作用

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

采用液相沉淀法制备沉积于碳纳米管(CNT s)表面的F e2O3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F e2O3/CNT s复合纳米催化剂进行表征,研究了F e2O3/CNT s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F e2O3颗粒均匀包覆在CNT s表面,F e2O3/CNT s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;F e2O3/CNT s复合纳米催化剂对AP的催化活性明显优于纳米F e2O3、纳米F e2O3和CNT s的简单混合催化剂。

Carbon nanotubes （CNTs） supporting ferric oxide （Fe2O3） 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 Fe2O3/CNTs composite nano-particles catalyst on the combustion of ammonium perchlorate （AP） was studied. The results show that nano-Fe2O3 was coated uniformly on the surface of CNTs. Thermal decomposition temperature of AP adding CNTs/Fe2O3 composite nano-particles catalyst decreases significantly, and the burning rate of AP adding CNTs/Fe2O3 composite nano-particles catalyst was improved. Catalytic properties of CNTs/Fe2O3 composite nano-particles is superior to that of nano-Fe2O3 and the simple mixture of CNTs and nano-Fe2O3.