Assembling Silver Cluster-Based Organic Frameworks for Higher-Performance Hypergolic Properties

作者：Chao Wang, Yajie Wang, Chunlin He, Qian‐You Wang, Shuang‐Quan Zang · 发表于：JACS Au · 年份：2021 · DOI：10.1021/jacsau.1c00334 · 被引用次数：30 · 研究领域：Metal-Organic Frameworks: Synthesis and Applications、Nanocluster Synthesis and Applications、Crystallography and molecular interactions

High Resolution Image Download MS PowerPoint Slide Increasing research efforts have been focused on developing next-generation propellants. In this work, we demonstrated that assembling zero-dimensional (0D) silver clusters with energetic ligands into 3D metal organic frameworks (MOFs) not only inherited the short ignition delay (ID) time of the alkynyl-silver cluster but also significantly increased the output energy. Among them, the open cationic framework of ZZU-363 incorporating counter NO 3 – ions achieved a considerably reduced energy barrier and eventually the shortest ID time (26 ms), together with the highest volumetric energy density (40.4 kJ cm –3 ) and specific impulse (263.1 s), which is far superior to traditional hydrazine-based propellants. The underlying mechanisms are clearly revealed by theoretical calculations. This work opens a venue to significantly enhancing the hypergolic activity of metal clusters and MOFs.