Research Progress in Donor-Acceptor Type Covalent Organic Frameworks
Yeqing Xia1, Weifeng Zhang2,3, Shuai Yang2,3
1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|April 24, 2023
Summary
Donor-acceptor (D-A) type covalent organic frameworks (COFs) enhance charge separation for improved performance. This review details D-A COF synthesis and applications in catalysis, therapy, and electronics.
Area of Science:
- Materials Science
- Chemistry
- Nanotechnology
Background:
- Covalent organic frameworks (COFs) are porous materials with tunable properties.
- Intrinsic COFs suffer from rapid electron-hole recombination, limiting their applications.
- Donor-acceptor (D-A) architectures offer a solution by separating charge carriers.
Purpose of the Study:
- To review synthetic strategies for D-A type COFs.
- To summarize the applications of D-A type COFs.
- To discuss challenges and future directions in D-A COF research.
Main Methods:
- Introduction of donor (D) and acceptor (A) units into COF backbones.
- Rational design of linkages and functionalization approaches for D-A COFs.
- Systematic review of D-A COF applications.
Main Results:
- D-A COFs exhibit improved charge separation and carrier lifetimes.
- Successful applications demonstrated in catalysis, photothermal therapy, and electronic materials.
- Advanced synthetic strategies enable tailored D-A COF properties.
Conclusions:
- D-A type COFs represent a significant advancement over intrinsic COFs.
- Further research into synthesis and applications holds great promise.
- Addressing current challenges will unlock the full potential of D-A COFs.
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