4.7 Review

Perspectives in Adsorptive and Catalytic Mitigations of NOx Using Metal-Organic Frameworks

Journal

ENERGY & FUELS
Volume 36, Issue 7, Pages 3347-3371

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.1c03638

Keywords

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Funding

  1. Programme d'investissements d'avenir (PIA) in France [ANR-18-MOPGA-0009]
  2. Occitanie Region

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Due to its high polluting effect, there has been a growing research interest in the monitoring, removal, and control of NOx in recent years. Researchers have explored the potential of metal-organic frameworks (MOFs) as adsorbents, sensors, and catalysts for NOx mitigation/control due to their high degree of functional and structural tunability. However, this field of research is still in its early stages. The challenging physical-chemical properties of NOx make this task extremely difficult, as some materials exhibit relatively weak thermal and/or chemical stability. Nevertheless, recent studies have shown promising stability properties in certain MOFs, making them potential benchmark materials for capturing and converting NOx.
Because of its high polluting effect, a growing research interest in NOx monitoring, removal, and control has been noticed in the last years. Motivated by the high degree of functional and structural tunability of metal-organic frameworks (MOFs), researchers explored potential MOF-based adsorbents, sensors, and catalysts for NOx mitigation/control. However, this area of research is still in its infancy. In addition, the physical-chemical properties of NOx make this task extremely challenging as some materials suffer relatively weak thermal and/or chemical stability. Nevertheless, some recent encouraging studies have demonstrated superior stability properties that enable MOFs to be considered as alternative benchmark materials for the capture and conversion of NOx. This review offers an overview on the recent progress made in this field and provides some interesting routes on the uses of MOFs for selective NOx adsorption, release, and/or catalytic conversion (via selective catalytic reduction or photocatalysis).

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