Isoreticular Metal−Organic Frameworks and Their Membranes with Enhanced Crack Resistance and Moisture Stability by Surfactant-Assisted Drying

• DOI: 10.1021/la104775d
• Publication Date: 2011-02-07T13:53:39Z
• Authors: Yeonshick Yoo; Victor Varela-Gue...; Hae-Kwon Jeong
• Keywords: Moiety

Here we report a new strategy that can not only prevent the formation of cracks and fractures in crystals films metal-organic frameworks (MOFs) but also substantially enhance their stability with respect to moisture. It involves addition surfactants during drying process. Surfactants reduce interfacial tension, thereby repressing final was found that, once dried, adsorbed on crystal surface render hydrophobic, leading enhancement toward Using this strategy, first crack-free IRMOF-3 membrane successfully prepared, its gas permeation performance tested. membranes are favor CO2 over C3H8 mainly due affinity amine groups structure. In addition, were postsynthetically modified heptanoic anhydride, changing effective pore size property MOF. Once increased solubility presence hydrocarbon moiety.