| Autor: |
Xu-wen Liu, Yan Hu, Jia-heng Hu, Jia-xin Su, Cai-min Yang, Ying-hua Ye, Rui-qi Shen |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Defence Technology, Vol 25, Iss , Pp 99-111 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2214-9147 |
| DOI: |
10.1016/j.dt.2022.05.009 |
| Popis: |
Copper azide (CA), as a primary explosive with high energy density, has not been practically used so far because of its high electrostatic sensitivity. The Cu2O@HKUST-1 core-shell structure hybrid material was synthesized by the “bottle around ship” methodology in this research by regulating the dissolution rate of Cu2O and the generation rate of metal-organic framework (MOF) materials. Cu2O@HKUST-1 was carbonized to form a CuO@porous carbon (CuO@PC) composite material. CuO@PC was synthesized into a copper azide (CA) @PC composite energetic material through a gas-solid phase in-situ azidation reaction. CA is encapsulated in PC framework, which acts as a nanoscale Faraday cage, and its excellent electrical conductivity prevents electrostatic charges from accumulating on the energetic material's surface. The CA@PC composite energetic material has a CA content of 89.6%, and its electrostatic safety is nearly 30 times that of pure CA (1.47 mJ compared to 0.05 mJ). CA@PC delivers an outstanding balance of safety and energy density compared to similar materials. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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