Synthesis of Co Nanoparticles and Their Catalytic Effect on the Decomposition of Ammonium Perchlorate

单音的驱散的公司 nanoparticles 成功地在惰性气氛借助于氢血浆方法被准备。样品的粒子大小，比表面积，晶体结构和形态学被传播描绘电子显微检查法(TEM ) ，赌注方程， X 射线衍射(XRD ) ，和相应选择区域电子衍射(SAED ) 。铵高氯酸盐(AP ) 的分解上的公司 nanoparticles 的催化效果被差热分析仪(DTA ) 调查。与纯 AP 的热解相比，公司 nanoparticles 的增加(2%-10% ，由质量) 减少由 145.01-155.72 ° C 的 AP 的分解温度。与 Co3O4 nanoparticles 和微大小的公司粒子相比，为 AP 的公司 nanoparticles 的催化效果更强壮。如此的效果被归因于大比表面积和它和分解中介气体的公司的相互作用。现在的工作在基于 AP 的燃料为公司 nanoparticles 的申请提供有用信息。

The monodispersed Co nanoparticles were successfully prepared by means of hydrogen plasma method in inert atmosphere. The particle size, specific surface area, crystal structure and morphology of the samples were characterized by transmission electron microscopy （TEM）, BET equation, X-ray diffraction （XRD）, and the corresponding selected area electron diffraction （SAED）. The catalytic effect of Co nanoparticles on the decomposition of ammonium perchlorate （AP） was investigated by differential thermal analyzer （DTA）. Compared with the thermal decomposition of pure AP, the addition of Co nanoparticles （2%-10%, by mass） decreases the decomposition temperature of AP by 145.01-155.72℃. Compared with Co3O4 nano-particles and microsized Co particles, the catalytic effect of Co nanoparticles for AP is stronger. Such effect is attributed to the large specific surface area and its interaction of Co with decomposition intermediate gases. The present work provides useful information for the application of Co nanoparficles in the AP-based propellant.