Lithium Ion Promoted the Formation of a Heat-Resistant Energetic Metal Salt with Dinitromethyl Functional Groups

IF 3.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Crystal Growth & Design Pub Date : 2024-11-25 DOI:10.1021/acs.cgd.4c0108810.1021/acs.cgd.4c01088

Xianfeng Wang, Feng Yang, Jianshuo Cheng, Yuangang Xu, Qiuhan Lin, Pengcheng Wang and Ming Lu*,

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Abstract

Heat-resistant explosives are indispensable compounds in the fields of energy exploitation and aviation. In this study, with 5-nitro-3-trinitromethyl-1,2,4-triazole as the raw material, an energetic metal salt dilithium 5-nitro-3-(dinitromethyl)-1,2,4-triazole (DN-2Li) with high thermal stability was obtained. The application evaluation parameters including thermal stability, mechanical sensitivity, and detonation performance were fully studied. The results show that DN-2Li not only has good detonation performance (D_v = 8669 m s^–1, P = 30.2 GPa) but also has appropriate mechanical sensitivity (IS = 4.0 J, FS = 100 N) and excellent thermal stability (T_d = 350.0 °C, E_K = 235.1 kJ mol^–1), which fully implies that DN-2Li has high application value as a heat-resistant explosive. This study not only provides a kind of heat-resistant explosive with potential application value but also provides a new vision for the design and preparation of new heat-resistant explosives.

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锂离子促进具有二硝基甲基官能团的耐热高能金属盐的形成

耐热炸药是能源开发和航空领域不可缺少的化合物。本研究以5-硝基-3-三硝基甲基-1,2,4-三唑为原料，制备了热稳定性高的含能金属盐5-硝基-3-（二硝基甲基）-1,2,4-三唑二锂（DN-2Li）。对热稳定性、机械灵敏度、爆轰性能等应用评价参数进行了全面研究。结果表明，DN-2Li不仅具有良好的爆轰性能（Dv = 8669 m s-1, P = 30.2 GPa），而且具有适宜的机械灵敏度（IS = 4.0 J, FS = 100 N）和优异的热稳定性（Td = 350.0℃，EK = 235.1 kJ mol-1），充分表明DN-2Li作为耐热炸药具有很高的应用价值。本研究不仅提供了一种具有潜在应用价值的耐热炸药，而且为新型耐热炸药的设计和制备提供了新的思路。

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来源期刊

Crystal Growth & Design 化学-材料科学：综合

CiteScore

6.30

自引率

10.50%

发文量

650

审稿时长

1.9 months

期刊介绍： The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.