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Long-Term Stability of MFM-300(Al) toward Toxic Air Pollutants.


ABSTRACT: Temperature- or pressure-swing sorption in porous metal-organic framework (MOF) materials has been proposed for new gas separation technologies. The high tunability of MOFs toward particular adsorbates and the relatively low energy penalty for system regeneration indicate that reversible physisorption in MOFs has the potential to create economic and environmental benefits compared with state-of-the-art chemisorption systems. However, for MOF-based sorbents to be commercialized, they have to show long-term stability under the conditions imposed by the application. Here, we demonstrate the structural stability of MFM-300(Al) in the presence of a series of industrially relevant toxic and corrosive gases, including SO2, NO2, and NH3, over 4 years using long-duration synchrotron X-ray powder diffraction. Full structural analysis of gas-loaded MFM-300(Al) confirms the retention of these toxic gas molecules within the porous framework for up to 200 weeks, and cycling adsorption experiments verified the reusability of MFM-300(Al) for the capture of these toxic air pollutants.

SUBMITTER: Carter JH 

PROVIDER: S-EPMC7517712 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Long-Term Stability of MFM-300(Al) toward Toxic Air Pollutants.

Carter Joseph H JH   Morris Christopher G CG   Godfrey Harry G W HGW   Day Sarah J SJ   Potter Jonathan J   Thompson Stephen P SP   Tang Chiu C CC   Yang Sihai S   Schröder Martin M  

ACS applied materials & interfaces 20200914 38


Temperature- or pressure-swing sorption in porous metal-organic framework (MOF) materials has been proposed for new gas separation technologies. The high tunability of MOFs toward particular adsorbates and the relatively low energy penalty for system regeneration indicate that reversible physisorption in MOFs has the potential to create economic and environmental benefits compared with state-of-the-art chemisorption systems. However, for MOF-based sorbents to be commercialized, they have to show  ...[more]

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