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Updated: Sep 15, 2025
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Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
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Promoting electromagnetic wave absorption for conductive metal-organic frameworks through crystal morphology
Xueling Wang1, Xuan Zhang1, Jiaqi Lu1
1College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P.R. China. cezlliu@imu.edu.cn.
Dalton Transactions (Cambridge, England : 2003)
|July 14, 2025
Summary
Conductive metal-organic frameworks (cMOFs) with tailored microstructures show excellent electromagnetic wave absorption. Controlling cMOF conductivity and bulk structure enhances performance for advanced material applications.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- Conductive metal-organic frameworks (cMOFs) are promising for electromagnetic wave (EMW) absorption due to their electrical conductivity.
- Challenges exist in regulating cMOF microstructure for optimal EMW absorption efficiency.
Purpose of the Study:
- To synthesize Ni-TABQ cMOFs with distinct microstructures.
- To investigate the relationship between microstructure, conductivity, and EMW absorption properties.
Main Methods:
- Synthesized two different Ni-TABQ cMOF morphologies by manipulating reaction environments.
- Assembled 2,3,5,6-tetraaminobenzoquinone (TABQ) ligands with Ni2+ ions.
- Characterized microstructures and evaluated EMW absorption performance.
Main Results:
- Achieved two distinct Ni-TABQ cMOF microstructures.
- Ni-TABQ-1 exhibited optimized electromagnetic parameters due to synergistic conductivity and microstructure.
- Demonstrated outstanding EMW absorption with a minimum reflection loss (RLmin) of -62.68 dB at 2.94 mm and an effective absorption bandwidth (EAB) of 5.12 GHz.
Conclusions:
- Microstructural control is crucial for enhancing cMOF conductivity and EMW absorption.
- Tailoring cMOF bulk microstructure and intrinsic conductivity offers a viable strategy for developing high-performance EMW absorbers.
