Xu Yiqiang, Wang Yanna, Zhong Ye, Lei Guorong, Li Zhimin, Zhang Jianguo, Zhang Tonglai
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
College of Chemistry and Chemical Engineering, Xingtai University, Xingtai, Hebei 054001, People's Republic of China.
Inorg Chem. 2021 Apr 5;60(7):5100-5106. doi: 10.1021/acs.inorgchem.1c00109. Epub 2021 Mar 24.
In this study, a hypergolic linker (dicyanamide, DCA) and a high-energy nitrogen-rich ligand (1,5-diaminotetrazole, DAT) were applied to construct high-energy metal-organic frameworks (HEMOFs) with hypergolic property. Three novel metal-organic frameworks (MOFs) were synthesized via a mild method with fascinating 2D polymeric architectures, and they could ignite spontaneously upon contact with white fuming nitric acid (WFNA). The gravimetric energy densities of the three HEMOFs all exceeded 26.2 kJ·g. The cupric MOF exhibits the highest gravimetric and volumetric energy density of 27.5 kJ·g and 51.3 kJ·cm, respectively. By adjusting the metal cations, high-energy ligands and hypergolic linkers can improve the performance of hypergolic MOFs. This work provides a strategy for manufacturing MOFs as potential high-energy hypergolic fuels.
在本研究中，一种自燃连接体（双氰胺，DCA）和一种高能富氮配体（1,5 - 二氨基四唑，DAT）被用于构建具有自燃特性的高能金属有机框架材料（HEMOFs）。通过一种温和的方法合成了三种具有迷人二维聚合物结构的新型金属有机框架材料（MOFs），它们在与发烟硝酸（WFNA）接触时能自燃。这三种HEMOFs的重量能量密度均超过26.2 kJ·g。铜基MOF分别表现出最高的重量能量密度27.5 kJ·g和体积能量密度51.3 kJ·cm³。通过调整金属阳离子，高能配体和自燃连接体可以提高自燃MOFs的性能。这项工作为制造作为潜在高能自燃燃料的MOFs提供了一种策略。
