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Sulfur Dioxide Capture in Metal‐Organic Frameworks, Metal‐Organic Cages, and Porous Organic Cages

Sulfur Dioxide Capture in Metal‐Organic Frameworks, Metal‐Organic Cages, and Porous Organic Cages Capture, storage and subsequent controlled release or transformation of sulfur dioxide (SO2) in mild conditions is still a challenge in the material science field. Recent advances in the use of porous materials have demonstrated good SO2 capture, particularly in metal‐organic frameworks (MOFs), metal‐organic cages (MOCs), and porous organic cages (POCs). The striking feature of these porous materials is the high SO2 uptake capacity in reversible settings. A partially fluorinated MIL‐101(Cr) is stand‐alone material with the highest SO2 uptake in chemically stable MOFs. Likewise, metal‐free adsorbents like POCs exhibits a reversible SO2 uptake behavior. The SO2 adsorption characteristics of these three structurally and functionally unique adsorbent systems are highly dependent on the binding sites and mode of binding of SO2 molecules. This Review has highlighted the preferential binding sites in these materials to give a full perspective on the field. We anticipate that it will offer valuable information on the progress made towards improving SO2 capture by hybrid systems. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ChemPlusChem Wiley

Sulfur Dioxide Capture in Metal‐Organic Frameworks, Metal‐Organic Cages, and Porous Organic Cages

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Publisher
Wiley
Copyright
© 2022 Wiley‐VCH GmbH
eISSN
2192-6506
DOI
10.1002/cplu.202200006
Publisher site
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Abstract

Capture, storage and subsequent controlled release or transformation of sulfur dioxide (SO2) in mild conditions is still a challenge in the material science field. Recent advances in the use of porous materials have demonstrated good SO2 capture, particularly in metal‐organic frameworks (MOFs), metal‐organic cages (MOCs), and porous organic cages (POCs). The striking feature of these porous materials is the high SO2 uptake capacity in reversible settings. A partially fluorinated MIL‐101(Cr) is stand‐alone material with the highest SO2 uptake in chemically stable MOFs. Likewise, metal‐free adsorbents like POCs exhibits a reversible SO2 uptake behavior. The SO2 adsorption characteristics of these three structurally and functionally unique adsorbent systems are highly dependent on the binding sites and mode of binding of SO2 molecules. This Review has highlighted the preferential binding sites in these materials to give a full perspective on the field. We anticipate that it will offer valuable information on the progress made towards improving SO2 capture by hybrid systems.

Journal

ChemPlusChem – Wiley

Published: Jun 1, 2022

Keywords: material science; metal-organic cages; metal-organic frameworks; porous organic cages; SO 2 adsorption

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