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Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
Published on: June 23, 2023
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Synergistic chaotropic effect and defect engineering promoting ultrahigh ionic conductivity in MOFs.
Dongbo Liu1, Xiao-Min Li1, Junchao Jia1
1China-Uzbekistan Joint Laboratory on Advanced Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University Hangzhou 310018 P. R. China lixm@zstu.edu.cn jkgao@zstu.edu.cn.
Chemical Science
|June 2, 2025
Summary
This study introduces a novel solvent-free ionic conductor for aqueous batteries. It achieves ultrahigh ionic conductivity via a defective structure and LiI doping, enhancing battery performance.
Area of Science:
- Materials Science
- Electrochemistry
- Solid-State Chemistry
Background:
- Aqueous electrolytes with high ionic conductivity are crucial for advancing aqueous battery technology.
- Solvent-free synthesis methods are highly desirable for developing stable and efficient electrolytes.
Purpose of the Study:
- To engineer a high-performance ionic conductor using a solvent-free approach.
- To investigate the synergistic effects of chaotropic agents and defective structures on ionic conductivity.
Main Methods:
- Solvent-free synthesis of D-UiO-66-LiI.
- Characterization of the material's structure and ionic transport properties.
- Temperature-dependent analysis of ionic conductivity and ion mobility.
Main Results:
- D-UiO-66-LiI exhibits enhanced ionic diffusion due to localized acidification and LiI doping.
- A cationic substructure promotes ion confinement and efficient conduction pathways.
- Ultrahigh ionic conductivities were achieved across wide temperature and humidity ranges.
Conclusions:
- The developed ionic conductor demonstrates significant potential for high-performance aqueous batteries.
- The synergistic approach of defect engineering and chaotropic doping offers a promising strategy for electrolyte design.
- The material's stability across varying conditions highlights its practical applicability.
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