Two-dimensional covalent organic frameworks with hierarchical porosity.
Rong-Ran Liang1, Shu-Yan Jiang, Ru-Han A
1Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China. xzhao@sioc.ac.cn.
Chemical Society Reviews
|May 20, 2020
Summary
This review explores pore engineering in 2D covalent organic frameworks (COFs), focusing on hierarchical porosity in heteropore COFs. It details their design, synthesis, and applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Covalent organic frameworks (COFs) are crystalline porous polymers with tunable nanopores.
- 2D COFs offer designable porosity through pore engineering.
- Hierarchical porosity in COFs presents advanced material properties.
Purpose of the Study:
- To review pore engineering strategies for 2D COFs.
- To highlight advancements in heteropore COFs with hierarchical porosity.
- To discuss the design, synthesis, characterization, properties, and applications of these materials.
Main Methods:
- Review of existing literature on 2D COF pore engineering.
- Analysis of framework topologies and pore design principles.
- Synthesis and characterization of heteropore COFs.
Main Results:
- Established pore design principles for uniform microporous and mesoporous 2D COFs.
- Comprehensive overview of heteropore COFs with hierarchical porosity.
- Demonstrated diverse applications stemming from tailored pore structures.
Conclusions:
- Heteropore COFs represent a significant advancement in 2D COF design.
- Hierarchical porosity enables novel functionalities and applications.
- Future research directions in complex 2D COF structures are promising.
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