Enhanced proton conductivity of Mo_(154)-based porous inorganic framework  

作　　者：Hai-Ying Wang Shu-Rong Li Xing Wang La-Sheng Long Xiang-Jian Kong Lan-Sun Zheng 

机构地区：[1]Collaborative Innovation Center of Chemistry for Energy Materials,State Key Laboratory of Physical Chemistry of Solid Surfaces,Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China

出　　处：《Science China Chemistry》2021年第6期959-963,共5页中国科学（化学英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(21871224,21673184,21721001);CAS Interdisciplinary Innovation Team(BK2018001);the Fundamental Research Funds for the Central Universities(20720180032).

摘　　要：The construction of inorganic porous frameworks from discrete polyoxometalate(POM)units is a major research challenge.Herein,a three-dimensional(3D)all-inorganic porous structure{Mo_(154)}_n that consists of classic Mo_(154)rings connected by Mo–O–Mo covalent bonds was synthesized.Interestingly,the proton conductivity of the 3D-{Mo_(154)}_n framework is 1.1×10^(-2)S cm^(-1)at 22℃and 100%relative humidity(RH),which is one of the highest proton conductivities reported thus far for POM-based conductive materials.Compared to the discrete{Mo_(154)}cluster and 1D-{Mo_(154)}_n,the enhanced conductivity of 3D-{Mo_(154)}_n suggests that assembling POM-based all-inorganic porous frameworks is a promising method for designing proton-conductive materials.

关 键 词：POLYOXOMOLYBDATE proton conductor three-dimensional structure SELF-ASSEMBLY CLUSTER 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]