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Core-Shell Type Ionic Liquid/Metal Organic Framework Composite: An Exceptionally High CO 2/CH 4 Selectivity

Muhammad Zeeshan, Vahid Nozari, M Baris Yagci, Tugba Isık, Ugur Unal, Volkan Ortalan, Seda Keskin, Alper Uzun

J Am Chem Soc. 2018 Aug 15;140(32):10113-10116.

PMID: 30005163

Abstract:

Here, we present a new concept of a core-shell type ionic liquid/metal organic framework (IL/MOF) composite. A hydrophilic IL, 1-(2-hydroxyethyl)-3-methylimidazolium dicyanamide, [HEMIM][DCA], was deposited on a hydrophobic zeolitic imidazolate framework, ZIF-8. The composite exhibited approximately 5.7 times higher CO2 uptake and 45 times higher CO2/CH4 selectivity at 1 mbar and 25 °C compared to the parent MOF. Characterization showed that IL molecules deposited on the external surface of the MOF, forming a core (MOF)-shell (IL) type material, in which IL acts as a smart gate for the guest molecules.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP1186103478 1-(2-Hydroxyethyl)-3-methylimidazolium dicyanamide 1-(2-Hydroxyethyl)-3-methylimidazolium dicyanamide 1186103-47-8 Price
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