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Proton conductive N-heterocyclic metal-organic frameworks

期刊

COORDINATION CHEMISTRY REVIEWS
卷 432, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.ccr.2020.213754

关键词

MOFs; N-heterocyclic ligands; Proton conduction; Mechanism; Progress

资金

  1. National Natural Science Foundation of China [22071223]

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This article comprehensively summarizes the proton conductive MOFs constructed by N-heterocyclic organic ligands, highlighting their potential as promising proton conductors.
Recently, metal-organic frameworks (MOFs) have received widespread attention due to their roles as solid electrolytes in fuel cells. Herein, we will comprehensively summarize proton conductive MOFs constructed by N-heterocyclic organic ligands. The reason we are interested in these MOFs is that the main building blocks of such MOFs, N-heterocyclic organic ligands, can not only take part in coordination with the central metal ions to form stable structures, but also serve as a proton source, and can also build up complicated H-bonding systems with other components within the frameworks and adsorbed H2O units. These characteristics are very beneficial to them as promising proton conductors. Thus, we will summarize the preparation strategies, structural characteristics, proton conductivity and applications of the related MOFs in the light of the types of organic ligands (pure N-heterocyclic ligands; N-heterocyclic ligands bearing different substituted units covering carboxylate, hydroxy, phosphonate group, and sulfonic acid units, and so on). Finally, the challenges, opportunities and applications of such MOFs are elaborated and highlighted. (C) 2020 Elsevier B.V. All rights reserved.

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