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MOFs with Open Metal(III) Sites for the Environmental Capture of Polar Volatile Organic Compounds

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  • معلومة اضافية
    • Contributors:
      Institut des Matériaux Poreux de Paris (IMAP); Département de Chimie - ENS Paris; École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL); Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris); Université Paris Sciences et Lettres (PSL)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS); Universidade de Lisboa = University of Lisbon = Université de Lisbonne (ULISBOA); Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM); Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM); Université de Montpellier (UM); Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM); Laboratoire catalyse et spectrochimie (LCS); Université de Caen Normandie (UNICAEN); Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN); Normandie Université (NU)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS)
    • بيانات النشر:
      HAL CCSD
      Wiley-VCH Verlag
    • الموضوع:
      2023
    • Collection:
      Université de Montpellier: HAL
    • نبذة مختصرة :
      International audience ; Metal-Organic Frameworks (MOF) with open metal sites (OMS) interact strongly with a range of polar gases/vapors. However, under ambient conditions, their selective adsorption is generally impaired due to a high OMS affinity to water. This led previously to the privilege selection of hydrophobic MOFs for the selective capture/detection of volatile organic compounds (VOCs). Herein, we show that this paradigm is challenged by metal(III) polycarboxylates MOFs, bearing a high concentration of OMS, as MIL-100(Fe), enabling the selective capture of polar VOCs even in the presence of water. With experimental and computational tools, including singlecomponent gravimetric and dynamic mixture adsorption measurements, in situ infrared (IR) spectroscopy and Density Functional Theory calculations we reveal that this adsorption mechanism involves a direct coordination of the VOC on the OMS, associated with an interaction energy that exceeds that of water. Hence, MOFs with OMS are demonstrated to be of interest for air purification purposes.
    • الرقم المعرف:
      10.1002/anie.202211583
    • الدخول الالكتروني :
      https://hal.science/hal-04306158
      https://hal.science/hal-04306158v1/document
      https://hal.science/hal-04306158v1/file/AcidMOFs_2023.pdf
      https://doi.org/10.1002/anie.202211583
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.E4BD617F