Chen Xu-Yong, Cao Li-Hui, Bai Xiang-Tian, Gao Yi-Da, Lv Wen-Yu, Fei Guiqiang
Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
Inorg Chem. 2025 May 19;64(19):9542-9548. doi: 10.1021/acs.inorgchem.5c00377. Epub 2025 May 5.
The designability of crystalline framework materials holds promise for the development of stable solid-state electrolytes with high ionic conductivity. In this study, we present three anthraquinone-based ionic hydrogen-bonded organic frameworks (), which possess 2D sandwich-shaped hydrogen-bonding networks. By modulating the anthraquinone substituents, the three iHOFs exhibit distinct ion-transport sites. Specifically, both carbonyls in the structure of are ion-transport sites, whereas only one carbonyl in each of and is, and thus exhibits higher ionic conductivities. The ionic conductivities of Li, Na, and K of at 30 °C are 1.37 × 10, 1.14 × 10, and 9.76 × 10 S cm, respectively, which are 16-47% higher than those of and . The design of the iHOFs for multidimensional ion transport provides valuable insights for the development of solid-state electrolytes for various ion batteries.
晶体骨架材料的可设计性为开发具有高离子电导率的稳定固态电解质带来了希望。在本研究中，我们展示了三种基于蒽醌的离子氢键有机骨架（），它们具有二维夹心状氢键网络。通过调节蒽醌取代基，这三种离子氢键有机骨架表现出不同的离子传输位点。具体而言，结构中的两个羰基都是离子传输位点，而和中各自只有一个羰基是离子传输位点，因此表现出更高的离子电导率。在30°C时，的Li、Na和K离子电导率分别为1.37×10、1.14×10和9.76×10 S cm，分别比和高16 - 47%。用于多维离子传输的离子氢键有机骨架的设计为各种离子电池固态电解质的开发提供了有价值的见解。
