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    A supermolecular building layer approach for gas separation and storage applications: the eea and rtl MOF platforms for CO 2 capture and hydrocarbon separation

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    Type
    Article
    Authors
    Chen, Zhijie cc
    Adil, Karim cc
    Weselinski, Lukasz Jan cc
    Belmabkhout, Youssef cc
    Eddaoudi, Mohamed cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Science Program
    Functional Materials Design, Discovery and Development (FMD3)
    Physical Science and Engineering (PSE) Division
    Date
    2015
    Permanent link to this record
    http://hdl.handle.net/10754/579558
    
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    Abstract
    The supermolecular building layer (SBL) approach was employed to deliberately synthesize five novel metal–organic frameworks (1–5) with an exposed array of amide or amine functionalities within their pore system. The ability to decorate the pores with nitrogen donor moieties offers potential to evaluate/elucidate the structure–adsorption property relationship. Two MOF platforms, eea-MOF and rtl-MOF, based on pillaring of kgm-a or sql-a layers with heterofunctional 3-connected organic building blocks were targeted and constructed to purposely introduce and expose the desired amide or amine functionalities. Interestingly, gas adsorption properties of eea-MOF-4 (1) and eea-MOF-5 (2) showed that by simply altering the nitrogen donor position within the ligand, it is possible to relatively reduce the pore size of the related eea-MOF material and subsequently increase the associated CO2 uptake. The slightly confined pore space in 2, relative to 1, has enabled an enhancement of the pore local charge density and thus the observed relative increase in the CO2 and H2 isosteric heat of adsorption (Qst). In addition, light hydrocarbon adsorption studies revealed that 2 is more selective toward C2H6 and C3H8 over CH4 than 1, as exemplified for C2H6 : CH4 (5 : 95) or C3H8 : CH4 (5 : 95) binary gas mixtures.
    Citation
    A supermolecular building layer approach for gas separation and storage applications: the eea and rtl MOF platforms for CO 2 capture and hydrocarbon separation 2015, 3 (12):6276 J. Mater. Chem. A
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    J. Mater. Chem. A
    DOI
    10.1039/C4TA07115H
    Additional Links
    http://xlink.rsc.org/?DOI=C4TA07115H
    Relations
    Is Supplemented By:
    • [Dataset]
      Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036006: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1kh. DOI: 10.5517/cc13s1kh HANDLE: 10754/624388
    • [Dataset]
      Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036005: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1jg. DOI: 10.5517/cc13s1jg HANDLE: 10754/624387
    • [Dataset]
      Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1044642: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc14214d. DOI: 10.5517/cc14214d HANDLE: 10754/624398
    • [Dataset]
      Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036004: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1hf. DOI: 10.5517/cc13s1hf HANDLE: 10754/624386
    • [Dataset]
      Chen, Z., Adil, K., Weseliński, Ł. J., Belmabkhout, Y., & Eddaoudi, M. (2015). CCDC 1036007: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13s1lj. DOI: 10.5517/cc13s1lj HANDLE: 10754/624389
    ae974a485f413a2113503eed53cd6c53
    10.1039/C4TA07115H
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Functional Materials Design, Discovery and Development (FMD3); Chemical Science Program

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