Shanshan Zhao, Liangliang Huang, Yang Lu, Xin Shao, Yue Yuan, Yanfeng Bi
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引用次数: 0
摘要
以 1-ethylpiperazine 为模板，在溶热条件下制备了一种新的亚磷酸铈草酸盐 [Ce2(H2PO3)(C2O4)4](C6N2H16)-H3O-3H2O（1）。单晶 X 射线衍射证明，化合物 1 具有由 CeO9 多面体、[C2O42-] 配体和 [H2PO3-] 基团构建的新三维（3D）结构。沿 b 轴观察，1-乙基哌嗪阳离子和水分子交替位于相邻的 12 环通道中。阻抗分析表明，在 75 °C 和 98 % 相对湿度（RH）条件下，1 的质子电导率高达 9.17 × 10-4 S cm-1。稳定性测试表明，质子传导在最高温度和湿度下都具有良好的持久性。这表明化合物 1 具有良好的质子传导性能，有望成为质子交换膜的候选材料。
[Ce2(H2PO3)(C2O4)4](C6N2H16)·H3O·3H2O: A lanthanide phosphite-oxalate compound with high proton conductivity
A new cerium phosphite-oxalate, [Ce2(H2PO3)(C2O4)4](C6N2H16)·H3O·3H2O (1), was prepared under solvothermal condition using 1-ethylpiperazine as template. Single-crystal X-ray diffraction proves that compound 1 has a new three-dimensional (3D) structure constructed with CeO9 polyhedra, [C2O42−] ligands and [H2PO3−] groups. View along the b-axis, 1-ethylpiperazine cations and water molecules alternately located in the adjacent 12-ring channels. Impedance analysis shows that the proton conductivity of 1 is up to 9.17 × 10−4 S cm−1 at 75 °C and 98 % relative humidity (RH). Stability test reveals that proton conduction has good persistence at the highest temperature and humidity. This suggests that compound 1 possesses promising proton conductivity property, making it into a potential candidate material for proton exchange membranes.
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.
·H3O·3H2O: A lanthanide phosphite-oxalate compound with high proton conductivity](https://img.booksci.cn/booksciimg/2024-8/98292382501755798657.jpg)
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