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Novel insensitive energetic-cocrystal-based BTO with good comprehensive properties
Jingjing Tao1, Bo Jin1, Shijin Chu1
1State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology Mianyang 621010 China.
RSC Advances
|May 11, 2022
Summary
A novel energetic cocrystal based on 1H,1
Area of Science:
- Materials Science
- Crystallography
- Energetic Materials
Background:
- Energetic cocrystals offer tunable properties for advanced applications.
- 1H,1'H-5,5'-bistetrazole-1,1'-diolate (BTO) is a promising energetic component.
- Layer construction and cocrystallization are effective strategies for designing novel energetic materials.
Purpose of the Study:
- To design and synthesize a structurally unusual energetic cocrystal using BTO.
- To comprehensively characterize the structural, thermal, and energetic properties of the new cocrystal.
- To investigate the relationship between layer-by-layer stacking and material performance.
Main Methods:
- Cocrystallization and layer construction strategy.
- Single-crystal and powder X-ray diffraction for structural confirmation.
- Differential scanning calorimetry (DSC), thermogravimetry (TG), and infrared spectroscopy (TG-IR) for thermal analysis.
- Sensitivity testing and detonation performance prediction (K-J equations).
Main Results:
- A novel BTO-based energetic cocrystal was successfully synthesized and characterized.
- The cocrystal exhibits high thermal stability up to 535.6 K and moderate impact sensitivity (>50 J).
- Predicted detonation velocity (8.213 km s⁻¹) and pressure (29.1 GPa) indicate significant energetic potential.
- High degree of layer-by-layer stacking correlates with enhanced structural density, thermal stability, and sensitivity.
Conclusions:
- The designed energetic cocrystal demonstrates excellent comprehensive performance.
- Layer-by-layer stacking is a critical factor in optimizing the properties of energetic materials.
- This study provides a pathway for developing advanced energetic materials with tailored properties.
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