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Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...

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Updated: Apr 2, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

Crystalline Porous Materials for Lithium Extraction.

Meng Sun¹, Xueyan Zhang¹, Yinfeng Han²

¹Shandong Key Laboratory of Intelligent Energy Materials, School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China.

Chem & Bio Engineering

|April 1, 2026

Summary

This summary is machine-generated.

Crystalline porous materials, like metal-organic frameworks and covalent organic frameworks, show great potential for efficient lithium-ion separation. These materials offer high selectivity and capacity, crucial for sustainable lithium resource development.

Keywords:

adsorption crystalline porous materials lithium ion separation membrane separation separation mechanisms

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Area of Science:

Materials Science
Chemical Engineering
Energy Storage

Background:

The global energy sector is rapidly transitioning, increasing demand for lithium-ion batteries.
Efficient lithium extraction is vital for the new energy industry.
Crystalline porous materials (CPMs) offer unique properties for lithium-ion separation.

Purpose of the Study:

To systematically review crystalline porous materials (CPMs) for lithium-ion adsorption and separation.
To analyze the structure-performance relationships and separation mechanisms in CPMs.
To highlight advancements in adsorption and membrane-based technologies for lithium separation.

Main Methods:

Review of structural features of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs).
Analysis of mechanisms including ion exchange, chelation coordination, and sieving effects.
Examination of synergistic mechanisms integrating multiple recognition pathways.

Main Results:

CPMs, particularly MOFs and COFs, demonstrate high selectivity and capacity for Li+ ion adsorption.
Structural flexibility of MOFs and chemical stability of COFs are key to their performance.
Functional modification and composite material synthesis enhance separation efficiency.

Conclusions:

CPMs offer a promising alternative to traditional lithium separation technologies.
Further research into functional modification and composite materials is needed.
CPMs are crucial for sustainable lithium resource development and next-generation separation materials.