Pore surface engineering of covalent organic frameworks: structural diversity and applications
Harsh Vardhan1, Ayman Nafady, Abdullah M Al-Enizi
1Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida-33620, USA. sqma@usf.edu.
Nanoscale
|November 14, 2019
Summary
Covalent organic frameworks (COFs) are advanced porous materials with tunable properties. This review details pore surface engineering strategies for COFs, enhancing their applications in diverse fields.
Area of Science:
- Materials Science
- Chemistry
- Nanotechnology
Background:
- Covalent organic frameworks (COFs) are crystalline porous materials constructed from molecular building blocks via covalent bonds.
- COFs offer tunable structures, high surface areas, and inherent stability, making them promising for various applications.
- Direct synthesis of functionalized COFs can be challenging, necessitating post-synthetic modification strategies.
Purpose of the Study:
- To review the principles of dynamic covalent chemistry and framework linkage in COF synthesis.
- To summarize diverse methods and perspectives for pore surface engineering in COFs.
- To highlight the versatile applications of engineered COFs across multiple domains.
Main Methods:
- Exploration of dynamic covalent chemistry for COF construction.
- Detailed discussion of pore surface engineering techniques, including coordination chemistry, chemical conversion, and building block exchange.
- Analysis of functionalization strategies under varying conditions.
Main Results:
- Pore surface engineering significantly enhances COF functionality and performance.
- Engineered COFs demonstrate improved properties for specific applications.
- A wide range of substituents can be introduced to tailor COF pore environments.
Conclusions:
- Pore surface engineering is crucial for unlocking the full potential of COFs.
- Engineered COFs offer advanced solutions for biomedical, energy, environmental, and sensing applications.
- Continued research in COF design and functionalization promises further breakthroughs.
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