将溴化铵封装在金属有机框架中：在宽相对湿度范围内实现显著的质子传导
Encapsulating NHBr in a metal organic framework: achieving remarkable proton conduction in a wide relative humidity range.
作者信息
Du Yihan, Zhang Kun, Liu Ziya, Liu Shaoxian, Huang Guoji, Huang Yang, Qin Qianqian, Luo Jiaxin, Xu Bingqing, Zhang Gen
机构信息
Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
School of Environmental Science, Nanjing Xiaozhuang University, Nanjing, Jiangsu 211171, China.
出版信息
Dalton Trans. 2021 Nov 2;50(42):15321-15326. doi: 10.1039/d1dt02253a.
Proton-conducting materials are key components for constructing high-energy-density electronic devices. In this work, by accumulating NHBr into the nanospace of the classical metal organic framework MIL-101-Cr, a proton conductivity as high as 1.53 × 10 S cm was achieved at 363 K and 100% RH. The proton conduction of NHBr@MIL-101-Cr was also high even at lower relative humidity; for instance, it was ∼10 S cm at 75% RH. The activation energy was calculated to be 0.11 eV for NHBr@MIL-101-Cr, indicative of tight H-bond networks and a low barrier to proton transfer, and confirming the occurrence of pure proton conduction as well.
质子传导材料是构建高能量密度电子器件的关键组件。在这项工作中，通过将NHBr积累到经典金属有机框架MIL-101-Cr的纳米空间中，在363 K和100%相对湿度下实现了高达1.53×10 S cm的质子传导率。即使在较低的相对湿度下，NHBr@MIL-101-Cr的质子传导率也很高；例如，在75%相对湿度下约为10 S cm。计算得出NHBr@MIL-101-Cr的活化能为0.11 eV，这表明存在紧密的氢键网络且质子转移的势垒较低，同时也证实了纯质子传导的发生。
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