Covalent organic frameworks for gas storage and separation
Yunjia Jiang1, Junyu Ren2, Yiwen Yuan1
1Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, China. ybzhang@zjnu.edu.cn.
Covalent organic frameworks (COFs) offer a sustainable alternative for gas storage and separation, outperforming traditional methods. This review highlights COF advancements in hydrogen, methane, and various gas mixture separations, focusing on adsorption technologies.
Area of Science:
- Materials Science
- Chemical Engineering
- Environmental Science
Background:
- Conventional gas storage and separation methods are energy-intensive and costly.
- Physical adsorption using porous materials is a low-energy alternative.
- Covalent organic frameworks (COFs) are promising adsorbents due to their tunable properties and stability.
Purpose of the Study:
- To review recent advancements in gas storage and separation using COF materials.
- To emphasize adsorption-based methods and cover membrane technology.
- To analyze COF structural design and enhancement strategies.
Main Methods:
- Comprehensive literature review of COF applications in gas storage and separation.
- Focus on adsorption mechanisms and performance.
- Analysis of COF synthesis and modification strategies.
Main Results:
- COFs show significant potential for hydrogen and methane storage.
- COFs are effective for separating various gas mixtures, including CO2, SO2, SF6, H2/D2, NH3, CH4/N2, and O2/N2.
- Structural design innovations and synthesis strategies enhance COF performance.
Conclusions:
- COFs represent a highly promising class of materials for efficient and sustainable gas storage and separation.
- Further research is needed to overcome challenges in translating COF technology to industrial applications.
- Future developments in COF materials hold great potential for environmental and energy sustainability.
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