树枝状纳米钴微晶对高氯酸铵热分解的影响  

Effect of nanocrystalline Co on the thermal decomposition of ammonium perchlorate

作　　者：曹新富[1] 杨毅[1] 刘冠鹏[1] 李凤生[1] 

机构地区：[1]南京理工大学国家特种超细粉体工程技术研究中心

出　　处：《功能材料》2007年第1期148-150,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50306008);总装预研资助项目(41328030507)

摘　　要：采用化学还原法制备了纳米钴微晶,并对产物进行了XRD、SEM、TEM和EDAX表征,结果表明,纳米钴微晶呈树枝状、结晶度高、颗粒尺寸均匀;运用DTA分析研究了纳米钴微晶对AP分解的催化性能,结果显示AP的高低温放热峰相连且合并成一个高而大的放热峰,峰温最大幅度降低了180℃,表观分解热显著增大。表明纳米钴微晶对AP热分解有着极强的催化活性。The nanocrystaUine Co were prepared by simple chemical reduction. The sample was characterized by TEM, SEM, XRD and EDAX. The decomposition of ammonium perchlorate （AP） in the presence of nanocrystalline Co has been investigated by DTA. The results show the high temperature peak of AP and low＇s link,and incorporate a high and large exothermic peak,the peak temperature of high and low＇s are all decrease,and clearly decreased by 180℃. These phenomena indicated that the nanocrystalline Co has very excellent catalytic activity of AP.

关 键 词：树枝状 纳米微晶钴 高氯酸铵 热分解 催化性能 

分 类 号：TF123.7[冶金工程—粉末冶金] TQ426.8[冶金工程—冶金物理化学]