Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 162, Issue -, Pages 1-5Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2012.06.002
Keywords
Metal-organic framework; MIL-53(Al); Capillary liquid chromatography; Framework breathing; Xylene isomers
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Funding
- F.W.O.-Vlaanderen
- FWO Vlaanderen [G.0453.09 N]
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The propagation of C8 alkylaromatics (in particular ethylbenzene (EB), p-xylene (pX) and o-xylene (oX)) through MIL-53(Al) packed capillaries at varying temperatures (from 20 to 70 degrees C) and mobile phase compositions of acetonitrile/1-propanol (75/25, 50/50 and 25/75) has produced unexpected trends in retention behavior and pressure drop; these effects are attributed to framework breathing. Thereby, it seems feasible to perform these chromatographic separations on MIL-53(Al) at elevated temperatures, resulting in much smaller analysis times without losing too much selectivity. (C) 2012 Elsevier Inc. All rights reserved.
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