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

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.

SUBMITTER: Wang C

PROVIDER: S-EPMC8715486 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature

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

Wang Chao C Wang Ya-Jie YJ He Chun-Lin CL Wang Qian-You QY Zang Shuang-Quan SQ

JACS Au 20211011 12

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 considerabl ...[more]

PMID: 34977891

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