核壳型CCO@AP复合催化剂的制备及性能研究  

Preparation and Performance Study of Core-shell CCO@AP Composite Catalyst

作　　者：刘庆东 李兆娜 仉玉成 吴祝骏 徐一锋 宋雪峰[1] Liu Qingdong;Li Zhaona;Zhang Yucheng;Wu Zhujun;Xu Yifeng;Song Xuefeng(School of Materials Science&Engineering,Shanghai Jiaotong University,Shanghai,200240;Shanghai Space Propulsion Technology Research Institute,Zhejiang,313000)

机构地区：[1]上海交通大学材料科学与工程学院,上海200240 [2]上海航天化工应用研究所,浙江313000

出　　处：《当代化工研究》2024年第23期173-175,共3页Modern Chemical Research

基　　金：航天先进技术联合研究中心项目“铜铬催化剂包覆研究及其应用”(项目编号:USCAST2022-43);上海市自然科学基金项目“太阳燃料可见光全谱响应g-C3N4基光催化剂结构调控与性能增强”(项目编号:22ZR1432500)。

摘　　要：针对铜铬氧化物(CCO)类催化剂易团聚引起其在推进剂体系中分布不均的问题,通过一体化设计和重结晶沉积法制备了核壳型CCO@AP复合粉体。扫描电镜图片显示复合粉体具有嵌入型和表面型包覆两种模式,两种模式均能够提高CCO在整个体系中的分散均匀度。DSC曲线显示,相较于机械混合(CCO+AP)粉体,核壳型CCO@AP粉体中AP的分解温度降低了20℃以上;采用核壳型CCO@AP复合粉体进行装药的药柱具有更高的燃速,推进剂药柱完全燃烧的时间减少了约25%。To address the issue of uneven distribution of copper-chromium oxide(CCO)catalysts in propellant systems due to their tenden-cy of aggregation,a core-shell CCO@AP composite catalyst using an integrated design approach and recrystallization deposition method was fab-ricated.SEM images show that the composite powder has two types of coating modes,i.e.embedded and surface,both of which can improve the dis-persion uniformity of CCO throughout the system.DSC results show the decomposition temperature of AP in core-shell CCO@AP catalysts has been decreased by more than 20℃compared to the mechanically mixed CCO+AP catalysts.Furthermore,the solid propellant charge column with core-shell CCO@AP powder exhibited a higher burn rate,the time for complete combustion of the propellant column is reduced by about 25%.

关 键 词：铜铬氧化物催化剂 核壳结构 高氯酸铵 燃烧 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]