材料科学
分子
氢键
空隙(复合材料)
氢
共价键
热稳定性
化学物理
纳米技术
化学工程
复合材料
有机化学
化学
物理
工程类
作者
Zhe Wang,Zhe Wang,Qingzhou Lai,Ping Yin,Ping Yin,Siping Pang
标识
DOI:10.1021/acsami.4c01522
摘要
Energetic hydrogen-bonded organic frameworks (E-HOFs), as a type of energetic material, spark fresh vitality to the creation of high energy density materials (HEDMs). However, E-HOFs containing cations and anions face challenges such as reduced energy density due to the inclusion of crystal water. In this work, the modification of amino groups in N-rich organic units could form a smart building block of hydrogen-bonded frameworks capable of changing the volume of the void space in the molecule through adaptive deformation of E-MOF blocks, thus enabling the replacement of water. Based on the above strategy, we report an interesting example of a series of hydrogen-bonded organic frameworks (E-HOF 2a and 3a) synthesized using a facile method. The crystal structure data of all of the compounds were also obtained in this work. Anhydrous 2a and 3a exhibit higher density, good thermal stability, and low mechanical sensitivity. The strategy of covalent bond modification for the host molecules of energetic frameworks shows enormous potential in eliminating the crystalline H2O of hydration and exploring high energy density materials.
科研通智能强力驱动
Strongly Powered by AbleSci AI