Laser micropropulsion (LMP) is a promising power system for micro-nano satellites. However, current propellants lack enhanced micropropulsion performance and extended service life. To address these challenges, we introduce metal-organic-frameworks (MOFs)-derived Carbon-encapsulated-Nano-Metal Composite (CNMC) through in situ thermal decomposition. CNMC materials combine MOFs' large surface area and porous structure with the benefits of lightweight carbon-based materials. By manipulating the synthesis condition, uniform and highly dense nanoparticles of sizes around 35–121 nm can be achieved. The experimental and numerical studies reveal effective tailoring of LMP performance by adjusting nanoparticle size and metal concentration. Remarkably, CNMC with about 71 nm Cu nanoparticles at 35.3 wt. % exhibits exceptional LMP performance, with 95.02 μN/μg impulse thrust per mass, 42.42% ablated efficiency, and 969.58 s specific impulse. This work provides valuable insights into rational nanoparticle design in carbon-based materials, opening broad applications in LMP technology. Addressing current propellant limitations, this research advances micropropulsion, benefiting future space exploration.

激光微推进（LMP）是一种很有前景的微纳卫星动力系统。然而，目前的推进剂缺乏增强的微推进性能和延长的使用寿命。为了应对这些挑战，我们通过原位热分解引入金属有机骨架（MOF）衍生的碳封装纳米金属复合材料（CNMC） 。 CNMC材料将MOF的大表面积和多孔结构与轻质碳基材料的优点结合起来。通过控制合成条件，可以获得尺寸约为 35-121 nm 的均匀且高密度的纳米颗粒。实验和数值研究揭示了通过调整纳米颗粒尺寸和金属浓度来有效定制 LMP 性能。值得注意的是，CNMC 具有约 71 nm Cu 纳米粒子，重量为 35.3。 % 表现出卓越的 LMP 性能，每质量脉冲推力为 95.02 μN/μg，烧蚀效率为 42.42%，比冲为 969.58 s。这项工作为碳基材料中合理的纳米粒子设计提供了宝贵的见解，为 LMP 技术开辟了广泛的应用。这项研究解决了当前推进剂的局限性，推进了微推进，有利于未来的太空探索。