Please use this identifier to cite or link to this item: https://doi.org/10.1021/acs.cgd.7b00287
Title: Beyond Equilibrium: Metal-Organic Frameworks for Molecular Sieving and Kinetic Gas Separation
Authors: Wang, Yuxiang 
Zhao, Dan 
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Crystallography
Materials Science, Multidisciplinary
Chemistry
Materials Science
FREQUENCY-RESPONSE METHOD
ZEOLITIC IMIDAZOLATE FRAMEWORKS
THERMAL-STABILITY
MASS-TRANSFER
HYDROCARBON SEPARATIONS
ADSORPTION PROPERTIES
SELECTIVE SORPTION
PHASE-TRANSITION
CO2 ADSORPTION
PORE-SIZE
Issue Date: 1-May-2017
Publisher: AMER CHEMICAL SOC
Citation: Wang, Yuxiang, Zhao, Dan (2017-05-01). Beyond Equilibrium: Metal-Organic Frameworks for Molecular Sieving and Kinetic Gas Separation. CRYSTAL GROWTH & DESIGN 17 (5) : 2291-2308. ScholarBank@NUS Repository. https://doi.org/10.1021/acs.cgd.7b00287
Abstract: © 2017 American Chemical Society. Metal-organic frameworks (MOFs) are a class of crystalline inorganic-organic hybrid materials that have demonstrated huge potential in gas separation due to their ultrahigh porosity, boundless chemical tunability, as well as surface functionality. Most gas separations realized in MOFs are under an equilibrium state and are dependent on the difference in thermodynamic affinities of gases to MOFs, whereas nonequilibrium separation such as kinetic and molecular sieving separation attracting growing attention in the past decade is achieved based on the difference in the size and diffusivity of gas molecules. In this perspective, we first discuss the pore size, temperature, and pressure effect on gas diffusion as well as nonequilibrium gas separation in MOFs. Second, we introduce current techniques reported to measure intracrystalline gas diffusivity. Third, we review recent progress in MOF-based nonequilibrium N2/O2 separation, CO2 capture, and hydrocarbon separation. In addition, we describe the hydrogen isotope separation based on kinetic quantum sieving in MOFs as a special scenario of kinetic gas separation. Lastly, we summarize general design strategies toward MOF-based nonequilibrium gas separation and propose several directions to advance the study in this exciting area.
Source Title: CRYSTAL GROWTH & DESIGN
URI: https://scholarbank.nus.edu.sg/handle/10635/170210
ISSN: 15287483
1528-7505
DOI: 10.1021/acs.cgd.7b00287
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