Carbon dioxide adsorption in amine-functionalized mixed-ligand metal-organic frameworks of UiO-66 topology.

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  • Additional Information
    • Source:
      Publisher: Wiley-VCH Country of Publication: Germany NLM ID: 101319536 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1864-564X (Electronic) Linking ISSN: 18645631 NLM ISO Abbreviation: ChemSusChem Subsets: MEDLINE
    • Publication Information:
      Original Publication: Weinheim : Wiley-VCH
    • Subject Terms:
      Amines/*chemistry ; Carbon Dioxide/*chemistry ; Metals/*chemistry ; Organic Chemicals/*chemistry; Adsorption ; Ligands ; Spectroscopy, Fourier Transform Infrared
    • Abstract:
      A series of mixed-ligand [1,4-benzenedicarboxylic acid (BDC)/2-amino-1,4-benzenedicarboxylic acid (ABDC)] UiO-66 metal-organic frameworks (MOFs) synthesized through two different methods (low (LT) and high temperature (HT)) have been investigated for their carbon dioxide adsorption properties from 0 to 1 bar to clarify the role of amino loading on carbon dioxide uptake. Volumetric CO2 isotherms show that the CO2 capacity (normalized to the Langmuir surface area) increases with a degree of functionalization of about 46%; for similar NH2 contents, the same values are found for both synthetic procedures. Microcalorimetric isotherms reveal that amino-functionalized materials have a larger differential heat of adsorption (q(diff) ) towards CO2 ; reaching 27(25) and 20(22) kJ mol(-1) on HT(LT)-UiO-66-NH2 and UiO-66, respectively, at the lowest equilibrium pressures used in this study. All experimental results are supported by values obtained through quantum mechanical calculations.
      (© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
    • Contributed Indexing:
      Keywords: IR spectroscopy; ab initio calculations; adsorption; carbon dioxide capture; metal-organic frameworks
    • Accession Number:
      0 (Amines)
      0 (Ligands)
      0 (Metals)
      0 (Organic Chemicals)
      142M471B3J (Carbon Dioxide)
    • Publication Date:
      Date Created: 20141011 Date Completed: 20150804 Latest Revision: 20141204
    • Publication Date:
      20221213
    • Accession Number:
      10.1002/cssc.201402694
    • Accession Number:
      25302675