Encapsulating Mobile Proton Carriers into Structural Defects in Coordination Polymer Crystals: High Anhydrous Proton Conduction and Fuel Cell Application
Encapsulating Mobile Proton Carriers into Structural Defects in Coordination Polymer Crystals: High Anhydrous Proton Conduction and Fuel Cell Application
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DOI：
10.1021/jacs.6b03625
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发表时间：
2016-07-13
影响因子：
15
通讯作者：
Kitagawa, Susumu
中科院分区：
文献类型：
--
作者：
Inukai, Munehiro;Horike, Satoshi;Kitagawa, Susumu
我们描述了在非多孔配位聚合物(CP)中将可移动质子载体封装到缺陷位置。质子载体具有高迁移率，并在无水条件下在150℃下提供高质子传导性。CP的高质子导电性和无孔性使其在燃料电池中用作电解液。用固体核磁共振、X射线光电子能谱、X射线衍射仪和电感耦合等离子体发射光电子能谱对缺陷和可移动质子载体进行了研究。在这些分析的基础上，我们得出结论，缺陷位为非配位的H3PO4、H2PO4-和H2O提供了可移动的空间。这些移动载体在扩展质子跳跃路径和促进质子在配位框架中的流动性方面发挥了关键作用，导致了高质子电导率和燃料电池发电。
We describe the encapsulation of mobile proton carriers into defect sites in nonporous coordination polymers (CPs). The proton carriers were encapsulated with high mobility and provided high proton conductivity at 150 degrees C under anhydrous conditions. The high proton conductivity and nonporous nature of the CP allowed its application as an electrolyte in a fuel cell. The defects and mobile proton carriers were investigated using solid-state NMR, XAFS, XRD, and ICP-AES/EA. On the basis of these analyses, we concluded that the defect sites provide space for mobile uncoordinated H3PO4, H2PO4- and H2O. These mobile carriers play a key role in expanding the proton-hopping path and promoting the mobility of protons in the coordination framework, leading to high proton conductivity and fuel cell power generation.