Enhanced proton conductivity of Mo154-based porous inorganic framework

• 作者: Hai-Ying Wang Shu-Rong Li Xing Wang La-Sheng Long Xiang-Jian Kong Lan-Sun Zheng
• 来源期刊: 中国科学：化学（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: ARTICLES
• 页码范围: 959-963
• 页数: 5页
• 语种: 英文

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 {Mol54}n that consists of classic Mo154 rings connected by Mo-O-Mo covalent bonds was synthesized.Interestingly,the proton conductivity of the 3D-{Mo154}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 {Mo154} cluster and 1D-{Mo154}n,the enhanced conductivity of 3D-{Mo154}n suggests that assembling POM-based all-inorganic porous frameworks is a promising method for designing proton-conductive materials.