Sulfonate-Functionalized Polyoxovanadate-Based Metal-Organic Polyhedra for Enhanced Proton Conduction via the Synergy of Linker and Metal Cluster Vertex  

作　　者：Yu Zhang Shan-Shan Liu Bo Li Hanqi You Longxi Zhang Zhenyi Zhang Hong-Ying Zang Qi Zheng Weimin Xuan 

机构地区：[1]College of Chemistry,Chemical Engineering and Biotechnology&State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Shanghai 201620,China [2]Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education at Universities of Jilin Province,Faculty of Chemistry,Northeast Normal University,Changchun 130024,China [3]Bruker(Beijing)Scientific Technology Co.,Ltd 9F,Building No.1,Lane 2570,Hechuan Rd,Minhang District,Shanghai 200233,China [4]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China

出　　处：《Chinese Journal of Structural Chemistry》2022年第8期12-17,共6页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(Nos.92161111,21901037,21901038,21871042);Shanghai Pujiang Program(No.19PJ1400200);the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning and International Cooperation Fund of Science and Technology Commission of Shanghai Municipality(No.21130750100)。

摘　　要：Metal-organic polyhedra(MOPs)have emerged as novel porous platforms for proton conduction,however,the concerted employment of both linker and metal cluster vertex is rarely applied for the fabrication of MOPs-based high conducting materials.Herein we report the synthesis of sulfonate-functionalized polyoxovanadate-based MOPs for enhanced proton conduction via the synergistic effect from linker and metal cluster node.MOPs 1 and 2 exhibit octahedral cage configuration constructed from{V_(5)O_(9)Cl}vertex and 5-sulfoisophthalate linker.Owing to the ordered packing of octahedral cages along three axes,3D interpenetrated open channels that are lined with high-density sulfonates are thus formed within 2.Coupled with the proton-conductive{V_(5)O_(9)Cl}vertexs as well as protonated counterions,an extensive H-bonded network is therefore generated for facile proton transfer.2 exhibits high proton conductivity of 3.02×10^(-2)S cm^(-1)at 65℃under 90%RH,recording the highest value for MOPs pellet sample.This value is enhanced~1order of magnitude compared with that of carboxylate-functionalized analogue 3,clearly illustrating the advantage of combining linker and metal cluster node for enhanced proton conduction.This work will further promote the exploitation of high proton conductive MOPs-based materials by the synergy design strategy.

关 键 词：metal-organic polyhedra proton conduction POLYOXOVANADATE synergistic effect 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TB30[一般工业技术—材料科学与工程]