Hydrogen bond and 3D frameworks to reconcile the conflict between safety and detonation performance in energetic metal–organic frameworks

  • Jinhao Zhang
  • , Zhicheng Guo
  • , Yulan Song
  • , Wenjia Hao
  • , Rufang Peng
  • , Bo Jin*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Energetic metal–organic frameworks (EMOFs), which combine energetic ligands with metal ions, hold promise as novel energetic materials to balance the sensitivity and safety of explosives. The coordinating solvent molecules have a significant effect on the energetic properties of EMOFs. Two EMOFs, [K(AFTO)·H2O]n (1) and solvent-free [K(AFTO)]n (2), were obtained at different reaction temperatures. EMOFs 1 and 2 exhibit excellent thermal stability (Td,1 = 569 K, Td,2 = 574 K), insensitivity to mechanical stimuli (FS ≥ 360 N, IS ≥ 40 J for 1; FS ≥ 360 N, IS = 35 J for 2) and satisfactory detonation performance (D1 = 8291 m s−1, P1 = 31.9 GPa; D2 = 8415 m s−1, P2 = 32.7 GPa) due to their different 3D framework structures and strong hydrogen bond networks.

Original languageEnglish
Article number139762
JournalChemical Engineering Journal
Volume453
DOIs
StatePublished - 1 Feb 2023
Externally publishedYes

Keywords

  • 3D EMOFs
  • AFTO
  • Energetic materials
  • Hydrogen bond
  • Potassium
  • Solvent-free

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