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Three-Dimensional Metal-Organic Framework as Super Heat-Resistant Explosive: Potassium
Chuan Li1, Man Zhang1, Qishan Chen1
1School of Chemical Engineering & Environment, Beijing Institute of Technology, South Street No. 5, Zhongguancun, Haidian District, 100081, Beijing, P. R. China.
Abstract:
A new super heat-resistant explosive, potassium 4-(5-amino-3-nitro-1H-1,2,4-triazol-1-yl)-3,5-dinitropyrazole (KCPT, 1), featuring a three-dimensional (3D) energetic metal-organic framework (MOF) was synthesized and fully characterized. The new 3D MOF was found to be extremely heat-resistant, having a high decomposition temperature of 323 °C. In addition, KCPT exhibits the best calculated detonation performance (vD =8457 m s-1 , p=32.5 GPa) among the reported super heat-resistant explosives or energetic potassium salts while retaining a suitable impact sensitivity of 7.5 J, which makes it one of the most promising heat-resistant explosives.