Research progress in metal-organic frameworks (MOFs) in CO capture from post-combustion coal-fired flue gas: characteristics, preparation, modification and applications

In response to the urgency of reducing CO 2 emissions, nearly 200 countries have joined the "Paris Agreement". It sets long-term low-carbon development goals, which aim to achieve carbon neutrality in the future. The combustion of fossil fuels, especially coal-fired power plants, is a major source of anthropogenic emissions of CO 2 in the atmosphere. Capture and storage of CO 2 (CCS) in post-combustion flue gas is considered to be a promising technology for achieving CO 2 emission reduction. Metal-organic frameworks (MOFs) are a potential emerging high-performance CO 2 capture material. This review was conducted based on most studies on CO 2 capture of MOFs from post-combustion coal-fired flue gas mainly published in the past decade. The main content includes characteristics, preparation methods, modification methods, and application of MOFs for CO 2 capture, and machine learning used in the development and screening of MOFs. The characteristics of MOFs with high CO 2 capture performance and the best candidate MOFs under the conditions of the coal-fired flue gas are summarized. In each part, a general summary and prospects of the related studies are given. The goal of this review is to provide technical and theoretical guidance for the development and industrial application of high-performance MOF materials for CO 2 capture in the post-combustion coal-fired flue gas. This review summarizes the characteristics, preparation methods, modification methods, and application of MOFs for CO 2 capture from post-combustion coal-fired flue gas, and machine learning used in the development and screening of MOFs.