两个基于DNM-TNBI作为宿主分子的能量框架材料:由不同的子有效协调
Boqian Yang1, BiBo Li1, Yang Liu1
1School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, China.
Chemistry, an Asian journal
|March 6, 2024
概括
新的高能材料被合成使用1-丁甲基 (dinitromethyl) -4,4 -4,4.
科学领域:
- 能量材料科学 能量材料科学
- 材料化学 材料化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 1-(丁甲基) -4,4',5,5'-四甲基-1H,1'H-2,2'-二胺醇 (DNM-TNBI) 显示出高性能但有限的热稳定性 (Td: 142°C).
- 开发具有更好的热稳定性的高能材料对于实际应用至关重要.
- 开放框架材料提供了通过定制结构增强性能的潜力.
研究的目的:
- 通过使用DNM-TNBI作为宿主分子合成新能源开放框架材料.
- 研究这些新材料的超分子结构和特性.
- 为了提高与原始化合物相比的热稳定性和爆炸性能.
主要方法:
- 通过协调DNM-TNBI与 (NH4+) 和 (K+) 离子来合成两种新的高能开放框架材料.
- 使用晶体学方法进行结构性表征,以确定超分子排列.
- 评估热稳定性 (Td) 和爆炸性能 (D,P).
主要成果:
- 成功合成了两种新的能量材料:[DNM-TNBI2−][2NH4+] (一种能量联框架,EHAF) 和[DNM-TNBI2−][2K+] (一种能量金属有机框架,EMOF).
- 这两种合成材料都比DNM-TNBI具有更高的热稳定性.
- 这两种材料的引爆性能均令人满意:[DNM-TNBI2−][2NH4+] (D: 8050 m/s, P: 26.4 GPa) 和[DNM-TNBI2−][2K+] (D: 8301 m/s, P: 30.8 GPa).
结论:
- DNM-TNBI可以有效地作为能量开放框架材料的构建块.
- 合成的EHAF和EMOF表现出更好的热稳定性,并保持了高引爆性能.
- 这些发现呈现出有希望的新能源材料,具有增强的安全性和性能特性.
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