Zhang Yongting, Zhang Xing, Yin Dangyue, Zhang Qinghua
School of Astronautics, Northwestern Polytechnical University, Xi'an 710065, China.
National Key Laboratory of Solid Propulsion, Xi'an 710065, China.
Molecules. 2025 Apr 16;30(8):1789. doi: 10.3390/molecules30081789.
The ionic liquid-hydrogen peroxide propellant system has emerged as a promising green propellant candidate, synergistically combining the unique advantages of ionic liquids (such as negligible vapor pressure, low melting points, high thermal stability and structural tunability) with the merits of hydrogen peroxide (including high density, low volatility, minimal viscosity, reduced corrosivity, and environmentally benign decomposition products). In this work, we provide a comprehensive review of the synthesis strategies and ignition performance of the ionic liquid-hydrogen peroxide propellant system, systematically categorizing them into two classes: "self-igniting propellants" and "promoter-dependent propellants". This review emphasizes the critical role of anion-specific design and catalytic engineering in advancing the performance of ionic liquid-hydrogen peroxide propellant systems, while also addressing the current challenges and future directions in this rapidly evolving field.
离子液体-过氧化氢推进剂系统已成为一种很有前景的绿色推进剂候选物，它将离子液体的独特优势（如可忽略的蒸气压、低熔点、高热稳定性和结构可调性）与过氧化氢的优点（包括高密度、低挥发性、极低粘度、腐蚀性降低以及环境友好的分解产物）协同结合在一起。在这项工作中，我们对离子液体-过氧化氢推进剂系统的合成策略和点火性能进行了全面综述，将它们系统地分为两类：“自燃推进剂”和“依赖促进剂的推进剂”。本综述强调了阴离子特异性设计和催化工程在提升离子液体-过氧化氢推进剂系统性能方面的关键作用，同时也探讨了这个快速发展领域当前面临的挑战和未来方向。
