纳米CO-B非晶态合金对高氯酸铵分解的催化性能  

Catalytic Performance of Nanometer Co-B Amorphous Alloy for Ammonium Perchlorate Decomposition

作　　者：曹新富[1] 李凤生[1] 杨毅[1] 刘建勋[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,江苏南京210094

出　　处：《催化学报》2006年第2期157-160,共4页

基　　金：国家自然科学基金(50306008);中国人民解放军总装备部预先研究基金(41328030507)资助项目

摘　　要：利用化学还原法制备了纳米CO-B非晶态合金,并用透射电镜、X射线衍射、差示扫描量热和N2吸附表面积测试等技术对样品进行了表征.运用差热分析研究了纳米CO-B非晶态合金对高氯酸铵(AP)分解的催化性能.结果表明,加入CO-B非晶态合金后AP的高低温放热峰相连,合并成一个高而大的放热峰,且峰温有很大程度的降低,这说明纳米CO-B非晶态合金对AP热分解有很好的催化活性.同时,CO-B非晶态合金能使AP的表观分解热显著增大.The nanometer Co-B amorphous alloy was prepared by chemical reduction method. The samples were characterized by transmission electron microscopy, X-ray diffraction, differential scanning calorimetry, and N2 adsorption. The catalytic performance of the nanometer Co-B amorphous alloy for ammonium perchlorate （AP） decomposition was investigated by differential thermal analysis. The results show that the high-temperature and low-temperature peaks of AP merge into a single high and large exothermic peak after the addition of Co-B amorphous alloy, and the peak temperature decreased with increasing Co-B content. These indicate that the nanometer Co-B amorphous alloy has better catalytic activity for the thermal decomposition of AP and can increase the apparent dissociation heat of AP.

关 键 词：钴 硼 纳米非晶态合金 高氯酸铵 热分解 

分 类 号：O643.32[理学—物理化学]