The Catalytic Effect of Single Atom Catalysts and Its Application Prospect in Solid Propellant

With the further development of advanced rocket and missile technology, existing combustion catalysts have been unable to meet the needs of propellant technology, which is further developing towards high energy, cleaned combustion gas and controlled combustion, which reflected in three aspects： low catalytic efficiency, poor catalytic selectivity and lacking of catalytic model. Single-atom catalysts have significant advantages such as high catalytic activity,selectivity, high stability and 100% atom utilization rate. The introduction of single-atom catalysts into the field of propellant combustion catalysis is expected to break through the bottleneck problem of high efficient and precise control of solid propellant combustion performance. The preparation method and characterization technique of single-atom catalysts were introduced, the effects of single-atom combustion catalysts in the field of solid propellant were analyzed, and the advantages of single-atom catalysts were pointed out. A reasonable prediction of the development trend of single-atom combustion catalysts combining the existing research experience of combustion catalysts were further made： enriching the single-atom combustion catalyst system from the aspects of diversified design and construction of microstructure and understanding the catalytic reaction mechanism from the molecular level, to clarify the single-atom catalytic combustion mechanism of solid propellant. 63 References were attched. © 2023 China Ordnance Industry Corporation. All rights reserved.