Dual organic linkers-mediated construction of cobalt-based metal-organic frameworks with tunable channel structures for lithium ion storage

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-09-10 DOI:10.1016/j.jssc.2025.125658

Gang Sun , Peng Li , Jun Chen , Chunsu Zhang , Meng-Ting Li

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Abstract

Metal-organic frameworks (MOFs) have emerged as promising anode materials for lithium-ion batteries due to their ability to provide ordered and stable lithium-ion transport channels. Additionally, the highly uniform distribution of active sites within their pores facilitates effective interactions with lithium ions, enhancing both the lithium-ion storage capacity and adsorption kinetics of the material. Based on these advantages, we designed and synthesized two supramolecular structures using the hexadentate rigid organic ligand 4,4′,4″-s-triazine-2,4,6-triyltribenzoic acid (TBA) in combination with different N-donor ligands as secondary auxiliary ligands. The resulting compounds, [Co(TBA)(bpy)]·H₂O (Co-TBA-bpy) and [Co₃(TBA)₂(phen)₃(H₂O)₃]·4H₂O (Co-TBA-phen), exhibit layered and porous supramolecular architectures, respectively. The dual-ligand strategy enables effective modulation of MOF structure and electrochemical performance.

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双有机连接剂介导的钴基金属有机框架的构建及其可调通道结构用于锂离子存储

金属有机骨架（mof）由于能够提供有序和稳定的锂离子传输通道而成为锂离子电池极具前景的负极材料。此外，活性位点在其孔隙内的高度均匀分布有助于与锂离子的有效相互作用，增强了材料的锂离子储存能力和吸附动力学。基于这些优点，我们以六齿刚性有机配体4,4 '，4″-s-三嗪-2,4,6-三基三苯甲酸（TBA）与不同的n给体配体作为二级辅助配体，设计并合成了两种超分子结构。所得化合物[Co(TBA)(bpy)]·H2O （Co-TBA-bpy）和[Co3(TBA)2(phen)3(H2O)3]·4H2O （Co-TBA-phen）分别表现出层状和多孔的超分子结构。双配体策略可以有效地调制MOF结构和电化学性能。

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.