Issue 35, 2022

Recent advances in microporous metal–organic frameworks as promising adsorbents for gas separation

Abstract

Gas separation is a crucial process for the production of many highly valuable chemical feedstocks in the petrochemical industry. Traditional separation technologies, including cryogenic distillation, chemisorption, and solvent extraction, are energy-intensive or environmentally unfriendly. The development of new separation technologies with low energy consumption and high efficiency is of significant importance for adapting to the increasing industrial demands. Adsorptive gas separation based on solid porous adsorbents has made much progress over the past few decades, benefiting from low cost, high efficiency, and environment friendliness. In this regard, porous metal–organic frameworks (MOFs), as a novel class of crystalline porous materials featuring adjustable structures and finely tunable pore metrics, have shown great promise to address various gas separation challenges. Furthermore, the highly crystalline nature of MOFs endows this kind of material with a unique advantage, providing an in-depth understanding of the structure–property relationship, which is crucial and meaningful to guide the design of separating materials for gas separation. Herein, we summarize the main advancements achieved in the last five years of developing MOFs as physisorbents for various critical gas separations, including but not limited to the separation of light hydrocarbons, C2H2/CO2, and Xe/Kr, and CO2 capture, and the separation mechanisms are also highlighted in each section. Finally, some challenges and perspectives in the design of MOFs for gas separation and industrial applications are outlined.

Graphical abstract: Recent advances in microporous metal–organic frameworks as promising adsorbents for gas separation

Article information

Article type
Review Article
Submitted
17 jun 2022
Accepted
17 avg 2022
First published
18 avg 2022

J. Mater. Chem. A, 2022,10, 17878-17916

Recent advances in microporous metal–organic frameworks as promising adsorbents for gas separation

J. Wang, C. Liang, X. Gu, H. Wen, C. Jiang, B. Li, G. Qian and B. Chen, J. Mater. Chem. A, 2022, 10, 17878 DOI: 10.1039/D2TA04835C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements