Covalent Organic Frameworks for CO2 Capture

Abstract

As an emerging class of porous crystalline materials, covalent organic frameworks (COFs) are excellent candidates for various applications. In particular, they can serve as ideal platforms for capturing CO 2 to mitigate the dilemma caused by the greenhouse effect. Recent research achievements using COFs for CO 2 capture are highlighted. A background overview is provided, consisting of a brief statement on the current CO 2 issue, a summary of representative materials utilized for CO 2 capture, and an introduction to COFs. Research progresses on: i) experimental CO 2 capture using different COFs synthesized based on different covalent bond formations, and ii) computational simulation results of such porous materials on CO 2 capture are summarized. Based on these experimental and theoretical studies, careful analyses and discussions in terms of the COF stability, low‐ and high‐pressure CO 2 uptake, CO 2 selectivity, breakthrough performance, and CO 2 capture conditions are provided. Finally, a perspective and conclusion section of COFs for CO 2 capture is presented. Recent advancements in the field are highlighted and the strategies and principals involved are discussed.