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Construction of biomimetic proton transport channels in metal-organic framework

查看全文 作　　者：Xiao-Min [1]Li;Junchao [1]Jia;Danting [2]Yang;Jiali [2]Jin;Junkuo [1]Gao 高影响力作者 机构地区：[1]School of Materials Science and Engineering,Institute of Functional Porous Materials,Zhejiang Sci-Tech University,Hangzhou 310018,China;[2]Zhejiang Key Laboratory of Pathophysiology,School of Public Health,School of Medicine,Ningbo University,Ningbo 315211,China高影响力机构 出　　处：《Chinese Chemical Letters》索引2024年第35卷第3期,共5页高影响力期刊 基　　金：supported by the Zhejiang Provincial Natural Science Foundation of China(No.LY20E020001);Research Initiation Fund Project from Zhejiang Sci-Tech University(No.22212154-Y);the Fundamental Research Funds of Zhejiang Sci-Tech University(No.22212290-Y)。 摘　　要：Construction of proton transport channels in metal-organic frameworks(MOFs)with simple synthesis processes,high proton conductivities and good performance stabilities has been of great interest for proton exchange membrane fuel cell(PEMFC).Herein,we mimic the proton transport behavior of amino acid residues in bacteriorhodopsin,select UiO-66-COOH as the host,glycine and aspartic acid as the functional guest molecules,and then functionalize the MOF framework with amino acids to obtain biomimetic proton transport channels.This strategy endows UiO-66-COOH-Asp a high proton conductivity of 1.19×10^(-2)S/cm at 70℃and 98%RH,excellent cycle stability of performances and performance durability,which can be comparable to the reported MOFs-based proton conductors.Moreover,the proton conduction mechanism in UiO-66-COOH-Asp is elaborated in detail due to its visual structure,which is also one of the advantages of adopting MOFs as research platform,making it possible to optimize the structure-activity relationship of advanced materials.Notably,this strategy has clear objectives and simple synthesis,which has made certain contributions to both theoretical research and future industrial production of proton conductors. 关 键 词：MOF Amino acids Biomimetic proton transport channels Synergistic effect Proton conduction mechanism
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