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Hydrogen bond and 3D frameworks to reconcile the conflict between safety and detonation performance in energetic metal-organic frameworks
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PRE
AI
J
Z
Y
W
彭
B
DOI：10.1016/j.cej.2022.139762.png)
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Abstract
En 中文
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)center dot H2O](n) (1) and solvent-free [K(AFTO)](n) (2), were obtained at different reaction temperatures. EMOFs 1 and 2 exhibit excellent thermal stability (T-d,T- 1 = 569 K, T-d,T- 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 (D-1 = 8291 m s(-1), P-1 = 31.9 GPa; D-2 = 8415 m s(-1), P2 = 32.7 GPa) due to their different 3D framework structures and strong hydrogen bond networks.
Keywords:
AFTO
Potassium
3D EMOFs
Solvent-free
Energetic materials
Hydrogen bond
Journal
IF:
13.2
Papers:
7.2W
Citations:
48.5W
Organization
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