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

Chao Wang; Ya-Jie Wang; Chun-Lin He; Qian-You Wang; Shuang-Quan Zang

doi:10.1021/jacsau.1c00334

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

JACS Au. 2021 Oct 11;1(12):2202-2207. doi: 10.1021/jacsau.1c00334. eCollection 2021 Dec 27.

Authors

Chao Wang¹, Ya-Jie Wang¹, Chun-Lin He², Qian-You Wang¹, Shuang-Quan Zang¹

Affiliations

¹ Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
² Chongqing Innovation Center, Beijing Institute of Technology, Chongqing 401120, China.

Abstract

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 NO₃ ^- 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.