具有高质子传导性的咪唑-羧酸基氢键有机结晶框架

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Journal of Solid State Chemistry Pub Date : 2024-11-19 DOI:10.1016/j.jssc.2024.125109

Jun Du , Zhen-Hua Xu , Zhi-Qiang Shi , Ning-Ning Ji , Ming-Yue Li , Gang Li

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引用次数: 0

摘要

利用含有咪唑和羧酸基团的有机连接体成功合成了氢键有机框架（HOF-SZU-1），并对其进行了结构表征。咪唑、羧酸和羧酸基团形成的有序氢键网络有利于在晶体结构中构建连续的质子传导路径。因此，在 100 °C 和 98% 的相对湿度条件下，HOF-SZU-1 表现出显著的质子传导性，高达 4.0 × 10-3 S cm-1。值得注意的是，HOF-SZU-1 在电化学测试后表现出优异的耐水/耐酸/耐碱性能和结构完整性，这表明它具有非凡的结构和化学稳定性。最后，对 HOF 框架中的质子传导过程进行了深入研究。

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A crystalline imidazole-carboxylic acid-based hydrogen-bonded organic framework with high proton conductivity

A hydrogen-bonded organic framework (HOF-SZU-1) was successfully synthesized from an organic linker containing both imidazole and carboxylic acid groups and structurally characterized. The ordered hydrogen bond networks formed by imidazolium, carboxylic acid, and carboxylate groups were favorable to construct continuous proton-conductive pathways in the crystal structure. Therefore, at 100 °C and 98 % relative humidity, HOF-SZU-1 manifested a prominent proton conductivity of up to 4.0 × 10⁻³ S cm⁻¹. It was also worth noting that HOF-SZU-1 exhibited excellent water/acid/alkali resistance, and structural integrity after the electrochemical test, indicating its extraordinary structural and chemical stability. Finally, the proton conduction process in the framework of the HOF was studied minutely.

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.