3D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and AP
ZIF-67 is a three-dimensional zeolite imidazole ester framework material with a porous rhombic dodecahedral structure, a large specific surface area and excellent thermal stability. In this paper, the catalytic effect of ZIF-67 on five kinds of energetic materials, including RDX, HMX, CL-20, AP and...
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MDPI AG
2022-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/23/8370 |
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| author | Xiong Yang Bojun Tan Bo Wang Lina Yao Xin Li Dongkui Zhao Wenjie Li Lei Cao Yafeng Huang Xiaofeng Wang |
| author_facet | Xiong Yang Bojun Tan Bo Wang Lina Yao Xin Li Dongkui Zhao Wenjie Li Lei Cao Yafeng Huang Xiaofeng Wang |
| author_sort | Xiong Yang |
| collection | DOAJ |
| description | ZIF-67 is a three-dimensional zeolite imidazole ester framework material with a porous rhombic dodecahedral structure, a large specific surface area and excellent thermal stability. In this paper, the catalytic effect of ZIF-67 on five kinds of energetic materials, including RDX, HMX, CL-20, AP and the new heat-resistant energetic compound DAP-4, was investigated. It was found that when the mass fraction of ZIF-67 was 2%, it showed excellent performance in catalyzing the said compounds. Specifically, ZIF-67 reduced the thermal decomposition peak temperatures of RDX, HMX, CL-20 and DAP-4 by 22.3 °C, 18.8 °C, 4.7 °C and 10.5 °C, respectively. In addition, ZIF-67 lowered the low-temperature and high-temperature thermal decomposition peak temperatures of AP by 27.1 °C and 82.3 °C, respectively. Excitingly, after the addition of ZIF-67, the thermal decomposition temperature of the new heat-resistant high explosive DAP-4 declined by approximately 10.5 °C. In addition, the kinetic parameters of the RDX+ZIF-67, HMX+ZIF-67, CL-20+ZIF-67 and DAP-4+ZIF-67 compounds were analyzed. After the addition of the ZIF-67 catalyst, the activation energy of the four energetic materials decreased, especially HMX+ZIF-67, whose activation energy was approximately 190 kJ·mol<sup>−1</sup> lower than that reported previously for HMX. Finally, the catalytic mechanism of ZIF-67 was summarized. ZIF-67 is a potential lead-free, green, insensitive and universal EMOFs-based energetic burning rate catalyst with a bright prospect for application in solid propellants in the future. |
| first_indexed | 2024-03-09T17:40:07Z |
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| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T17:40:07Z |
| publishDate | 2022-11-01 |
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| series | Molecules |
| spelling | doaj.art-e2e7bcba8de94b7ea16c059d274e175b2023-11-24T11:41:08ZengMDPI AGMolecules1420-30492022-11-012723837010.3390/molecules272383703D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and APXiong Yang0Bojun Tan1Bo Wang2Lina Yao3Xin Li4Dongkui Zhao5Wenjie Li6Lei Cao7Yafeng Huang8Xiaofeng Wang9Xi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaZIF-67 is a three-dimensional zeolite imidazole ester framework material with a porous rhombic dodecahedral structure, a large specific surface area and excellent thermal stability. In this paper, the catalytic effect of ZIF-67 on five kinds of energetic materials, including RDX, HMX, CL-20, AP and the new heat-resistant energetic compound DAP-4, was investigated. It was found that when the mass fraction of ZIF-67 was 2%, it showed excellent performance in catalyzing the said compounds. Specifically, ZIF-67 reduced the thermal decomposition peak temperatures of RDX, HMX, CL-20 and DAP-4 by 22.3 °C, 18.8 °C, 4.7 °C and 10.5 °C, respectively. In addition, ZIF-67 lowered the low-temperature and high-temperature thermal decomposition peak temperatures of AP by 27.1 °C and 82.3 °C, respectively. Excitingly, after the addition of ZIF-67, the thermal decomposition temperature of the new heat-resistant high explosive DAP-4 declined by approximately 10.5 °C. In addition, the kinetic parameters of the RDX+ZIF-67, HMX+ZIF-67, CL-20+ZIF-67 and DAP-4+ZIF-67 compounds were analyzed. After the addition of the ZIF-67 catalyst, the activation energy of the four energetic materials decreased, especially HMX+ZIF-67, whose activation energy was approximately 190 kJ·mol<sup>−1</sup> lower than that reported previously for HMX. Finally, the catalytic mechanism of ZIF-67 was summarized. ZIF-67 is a potential lead-free, green, insensitive and universal EMOFs-based energetic burning rate catalyst with a bright prospect for application in solid propellants in the future.https://www.mdpi.com/1420-3049/27/23/8370solid propellantenergetic metal organic frameworks (EMOFs)zeolite imidazolate frameworks-67 (ZIF-67)energetic burning rate catalystsburning rate catalysts |
| spellingShingle | Xiong Yang Bojun Tan Bo Wang Lina Yao Xin Li Dongkui Zhao Wenjie Li Lei Cao Yafeng Huang Xiaofeng Wang 3D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and AP Molecules solid propellant energetic metal organic frameworks (EMOFs) zeolite imidazolate frameworks-67 (ZIF-67) energetic burning rate catalysts burning rate catalysts |
| title | 3D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and AP |
| title_full | 3D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and AP |
| title_fullStr | 3D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and AP |
| title_full_unstemmed | 3D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and AP |
| title_short | 3D Electron-Rich ZIF-67 Coordination Compounds Based on 2-Methylimidazole: Synthesis, Characterization and Effect on Thermal Decomposition of RDX, HMX, CL-20, DAP-4 and AP |
| title_sort | 3d electron rich zif 67 coordination compounds based on 2 methylimidazole synthesis characterization and effect on thermal decomposition of rdx hmx cl 20 dap 4 and ap |
| topic | solid propellant energetic metal organic frameworks (EMOFs) zeolite imidazolate frameworks-67 (ZIF-67) energetic burning rate catalysts burning rate catalysts |
| url | https://www.mdpi.com/1420-3049/27/23/8370 |
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