The catalytic thermal decomposition of ammonium perchlorate on CuM x O y (M = Fe, Ni, Co and Zn) catalysts and their applications in solid propellant
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY(2023)
摘要
The excellent thermal decomposition efficiency of ammonium perchlorate (AP) is of great importance for obtaining propellant with fast specific impulse. In this study, four CuM x O y catalysts, including M = Fe, Ni, Co, and Zn, were synthesized and then used for catalyzing AP decomposition and hydroxyl-terminated polybutadiene (HTPB)-based solid propellant combustion. The existed synergistic effect in CuM x O y catalysts improved the catalytic activity and the most active CuZnO catalyst decreased the AP high-temperature decomposition temperature (HTD) from 412.5 to 289.4 °C. Kinetic studies indicated that CuM x O y catalysts inhibited the conversion of N 2 O to a fully oxidized product and decreased the activation energy ( E a ) in HTD to concentrate AP decomposition to significantly decrease the heat loss, thereby increasing their decomposition efficiency. When applying the CuM x O y catalysts in the HTPB (hydroxyl-terminated polybutadiene)-based solid propellant, a faster burning rate and stronger optical emission spectrum were obtained. The CuM x O y catalyst is a potential additive for the preparation of outstanding combustion solid propellants. Graphical abstract
更多查看译文
关键词
catalytic thermal decomposition,ammonium perchlorate,catalysts,cumxoy
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要