Unlocking the Comparative Potential of Porous Frameworks: A Review on MOFs and COFs for Gas Sorption

IF 8.8 2区 化学 Q1 Chemistry
Fatima Amjad, Arsheen Umar, Muhammad Haris Saeed, Muhammad Shahid Nazir, Zulfiqar Ali, Kun-Yi Andrew Lin, Jechan Lee, Sadaf Ul Hassan, Murid Hussain, Young-Kwon Park
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引用次数: 0

Abstract

Gases are integral to Earth’s climate and ecosystem balance, but human activity has significantly altered atmospheric composition by increasing greenhouse gas emissions. In 2025, carbon dioxide emissions were estimated at around 39–41 billion tons, reflecting a continued increase. Emissions of carbon monoxide, sulfur dioxide, and nitrogen dioxide were expected to remain close to 2.5 billion tons, 100 million tons, and 25 million metric tons, respectively. Hydrogen sulfide emissions decreased to 15 million tons compared with the previous year. These numbers underscore the challenge of addressing human-induced climate changes. Sorbents, particularly metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), have been used in literature for their gas sorption applications. Over the past decade, modified frameworks have been explored for their potential in gas sorption by combining the advantages of the different materials involved. The properties of these frameworks can be tailored by using various functional groups, metal ions, and polymer matrices. The structures of MOFs and COFs, their synthesis methods, and gas sorption applications are discussed. In addition, the applications of modified MOFs and COFs in gas sorption and separation (CO2 sorption from flue gas, hydrocarbon separation, separation of hydrocarbons, and iodine capture from nuclear waste), detection (NO2 sensing), and reduction (SO2 to reduced sulfur components) are discussed. It also explores the emerging aspects of enhancing gas sensing and capturing abilities of MOFs and COFs, analyzing their performance under different conditions of temperature, pressure, and relative humidity. The study addresses the challenges faced by existing frameworks and suggests directions for developing better materials.

Graphical abstract

打开多孔框架的比较潜力:mof和COFs气体吸附研究综述
气体是地球气候和生态系统平衡不可或缺的一部分,但人类活动增加了温室气体排放,显著改变了大气成分。2025年,二氧化碳排放量估计在390 - 410亿吨左右,反映出持续增长。预计一氧化碳、二氧化硫和二氧化氮的排放量分别接近25亿吨、1亿吨和2500万吨。硫化氢排放量比上年减少到1500万吨。这些数字凸显了应对人为气候变化的挑战。吸附剂,特别是金属有机框架(MOFs)和共价有机框架(COFs),已在文献中用于气体吸附应用。在过去的十年中,通过结合不同材料的优点,已经探索了改进框架在气体吸收方面的潜力。这些框架的性质可以通过使用各种官能团、金属离子和聚合物基质来定制。讨论了MOFs和COFs的结构、合成方法和气体吸附应用。此外,还讨论了改性MOFs和COFs在气体吸附和分离(从烟气中吸收CO2、碳氢化合物分离、碳氢化合物分离和从核废料中捕获碘)、检测(NO2传感)和还原(SO2还原为还原性硫组分)方面的应用。本文还探讨了增强mof和COFs气体传感和捕获能力的新兴方面,分析了它们在不同温度、压力和相对湿度条件下的性能。该研究解决了现有框架面临的挑战,并为开发更好的材料提出了方向。图形抽象
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来源期刊
Topics in Current Chemistry
Topics in Current Chemistry 化学-化学综合
CiteScore
11.70
自引率
1.20%
发文量
0
审稿时长
6-12 weeks
期刊介绍: Topics in Current Chemistry provides in-depth analyses and forward-thinking perspectives on the latest advancements in chemical research. This renowned journal encompasses various domains within chemical science and their intersections with biology, medicine, physics, and materials science. Each collection within the journal aims to offer a comprehensive understanding, accessible to both academic and industrial readers, of emerging research in an area that captivates a broader scientific community. In essence, Topics in Current Chemistry illuminates cutting-edge chemical research, fosters interdisciplinary collaboration, and facilitates knowledge-sharing among diverse scientific audiences.
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