首页|Construction of biomimetic proton transport channels in metal-organic framework

Construction of biomimetic proton transport channels in metal-organic framework

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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 pro-ton 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 func-tional 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 x 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 conduc-tion 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 synthe-sis,which has made certain contributions to both theoretical research and future industrial production of proton conductors.

MOFAmino acidsBiomimetic proton transport channelsSynergistic effectProton conduction mechanism

Xiao-Min Li、Junchao Jia、Danting Yang、Jiali Jin、Junkuo Gao

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School of Materials Science and Engineering,Institute of Functional Porous Materials,Zhejiang Sci-Tech University,Hangzhou 310018,China

Zhejiang Key Laboratory of Pathophysiology,School of Public Health,School of Medicine,Ningbo University,Ningbo 315211,China

浙江省自然科学基金Research Initiation Fund Project from Zhejiang Sci-Tech UniversityFundamental Research Funds of Zhejiang Sci-Tech University

LY20E02000122212154-Y22212290-Y

2024

10.1016/j.cclet.2023.108474

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(3)
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