High–aspect ratio zeolitic imidazolate framework (ZIF) nanoplates for hydrocarbon separation membranes
Ohchan Kwon, Minsu Kim, Eunji Choi, Jun Hyuk Bae, Sungmi Yoo, Jong Chan Won, Yun Ho Kim, Ju Ho Shin, Jong Suk Lee, Dae Woo Kim
Abstract
] were used as the sacrificial precursor. Successful phase conversion occurs as a result of the collaboration of low template stability and delayed delivery of 2-methylimidazole in weakly interacting solvents, particularly using acetone. When the ZIF-8 nanoplates with an average aspect ratio of 20 were shear aligned in the 6FDA-DAM polymer matrix by bar coating, the separation performance for propylene/propane far surpassed that of the previously reported mixed matrix and polymeric membranes, showing a propylene permeability of 164 Barrer and selectivity of 33.4 at 40 weight % loadings.
Topics & Concepts
Zeolitic imidazolate frameworkMembranePropaneChemical engineeringMaterials scienceImidazolateBarrerGas separationMetal-organic frameworkCalcinationHydroxideHydrocarbonSelectivityOrganic chemistryChemistryAdsorptionCatalysisBiochemistryEngineeringMetal-Organic Frameworks: Synthesis and ApplicationsMembrane Separation and Gas TransportZeolite Catalysis and Synthesis