One-step synthesis of dual-ligand 2D conductive metal-organic framework for high-performance lithium storage

Two-dimensional conductive metal-organic frameworks (2D c-MOFs) are emerging as promising electrode materials for lithium-ion batteries (LIBs). However, 2D c-MOFs with binary redox-active organic ligands are rare and suffer from complicated synthesis procedures. Herein, a facile one-step method is d...

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Bibliographic Details
Published in:Science China materials 2023-12, Vol.66 (12), p.4566-4574
Main Authors: Yin, Jia-Cheng, Zhang, Yin-Qiang, Li, Zhi-Gang, Cheng, Mingren, Liu, Ming, Li, Wei, Li, Na, Bu, Xian-He
Format: Article
Language:English
Subjects:
Anodes
Benzene
Benzoquinone
Chemistry and Materials Science
Chemistry/Food Science
Electrode materials
Electrodes
Ethylenediamine
Ligands
Lithium-ion batteries
Materials Science
Metal-organic frameworks
Rechargeable batteries
Stability
Synthesis
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Summary:Two-dimensional conductive metal-organic frameworks (2D c-MOFs) are emerging as promising electrode materials for lithium-ion batteries (LIBs). However, 2D c-MOFs with binary redox-active organic ligands are rare and suffer from complicated synthesis procedures. Herein, a facile one-step method is developed for the synthesis of a dual-ligand-based 2D c-MOF Cu 3 (HHTP)(THQ) (HHTP = 2,3,6,7,10,11-hexahydroxytriphenyl, THQ = tetrahydroxy-1,4-benzoquinone) by using the ethylenediamine regulator. The resulting Cu 3 (HHTP)(THQ) possesses good conductivity, abundant active sites, and excellent chemical stability. As an anode material for LIBs, Cu 3 (HHTP)(THQ) exhibits high specific capacity, good rate performance, and long-term cycling stability. Comprehensive experimental studies and theoretical calculations reveal that CuO 4 units and aromatic benzene rings in Cu 3 (HHTP)(THQ) are involved in lithium storage, thereby optimizing the lithium storage performance. This work provides a new way for the construction of dual-ligand 2D c-MOFs and high-performance LIB electrode materials.
ISSN:2095-8226
2199-4501
DOI:10.1007/s40843-023-2626-0