酰亚胺功能化金属-有机骨架中客体分子交换增强质子传导性。
Enhanced proton conductivity by guest molecule exchange in an acylamide-functionalized metal-organic framework.
机构信息
School of Chemistry and Environmental Engineering, Changchun University of Science and Technology; Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry; Jilin Provincial International Joint Research Center of Photo-functional Materials and Chemistry, Changchun, 130022, China.
State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130021, China.
出版信息
Dalton Trans. 2023 May 22;52(20):6847-6852. doi: 10.1039/d3dt01028g.
Metal-organic frameworks (MOFs) as types of proton conductive materials have attracted much attention. Here, an acylamide-functionalized 3D MOF, [Ni(TPBTC)(stp)(HO)]·2DMA·32HO, has been successfully constructed combining Ni(NO), TPBTC (TPBTC = benzene-1,3,5-tricarboxylic acid tris-pyridin-4-ylamide) and 2-Hstp (2-Hstp = 2-sulfoterephthalic acid monosodium salt) under solvothermal conditions. Single-crystal X-ray diffraction revealed that there are uncoordinated guest DMA molecules in the pores of the compound. On removal of guest DMA molecules, the proton conductivity of the compound increased to 2.25 × 10 S cm at 80 °C and 98% RH which is about 110 times that of the original material. It is hoped that this work can provide essential insight for designing and obtaining improved crystalline-state proton conducting materials by considering the influences of guest molecules on proton conduction properties of porous materials.
金属-有机骨架（MOFs）作为质子传导材料的类型引起了广泛关注。在此，通过溶剂热条件下将 Ni(NO₃)₂、TPBTC（TPBTC = 苯-1,3,5-三羧酸三吡啶-4-基酰胺）和 2-Hstp（2-Hstp = 2-磺基对苯二甲酸单钠盐）结合，成功构建了一种酰亚胺功能化的 3D MOF，[Ni(TPBTC)(stp)(HO)]·2DMA·32HO。单晶 X 射线衍射表明，化合物的孔中有未配位的客体 DMA 分子。去除客体 DMA 分子后，化合物在 80°C 和 98%RH 下的质子电导率增加到 2.25×10 S cm，是原始材料的约 110 倍。希望这项工作可以为通过考虑客体分子对多孔材料质子传导性能的影响来设计和获得改进的晶态质子传导材料提供重要的见解。
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