Journal ArticleDOI
The upper bound revisited
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TLDR
The empirical upper bound relationship for membrane separation of gases initially published in 1991 has been reviewed with the myriad of data now presently available as mentioned in this paper, which indicates a different solubility selectivity relationship for perfluorinated polymers compared to hydrocarbon/aromatic polymers.About:
This article is published in Journal of Membrane Science.The article was published on 2008-07-15. It has received 4525 citations till now. The article focuses on the topics: Upper and lower bounds.read more
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Carbon Dioxide Capture in Metal–Organic Frameworks
Kenji Sumida,David L. Rogow,Jarad A. Mason,Thomas M. McDonald,Eric D. Bloch,Zoey R. Herm,Tae-Hyun Bae,Jeffrey R. Long +7 more
TL;DR: Kenji Sumida, David L. Rogow, Jarad A. Mason, Thomas M. McDonald, Eric D. Bloch, Zoey R. Herm, Tae-Hyun Bae, Jeffrey R. Long
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Materials for next-generation desalination and water purification membranes
TL;DR: In this article, molecular-level design approaches for membrane materials, focusing on how these materials address the urgent requirements of water treatment applications, are reviewed for water scarcity and the pollution of aquatic environments.
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Membrane Gas Separation: A Review/State of the Art
TL;DR: In this paper, the most promising areas of research in gas separation, by considering the materials for membranes, the industrial applications of membrane gas separations, and finally the opportunities for the integration of membrane separation units in hybrid systems for the intensification of processes.
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Maximizing the right stuff: The trade-off between membrane permeability and selectivity
TL;DR: The permeability/selectivity trade-off is discussed, similarities and differences between synthetic and biological membranes are highlighted, challenges for existing membranes are described, and fruitful areas of future research are identified.
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Metal-organic framework nanosheets as building blocks for molecular sieving membranes
Yuan Peng,Yuan Peng,Yanshuo Li,Yujie Ban,Yujie Ban,Hua Jin,Hua Jin,Wenmei Jiao,Wenmei Jiao,Xinlei Liu,Weishen Yang +10 more
TL;DR: The preparation of 1-nanometer-thick sheets with large lateral area and high crystallinity from layered MOFs used as building blocks for ultrathin molecular sieve membranes, which achieve hydrogen gas permeance of up to several thousand gas permeation units (GPUs) with H2/CO2 selectivity greater than 200.
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Correlation of separation factor versus permeability for polymeric membranes
TL;DR: In this paper, an analysis of the literature data for binary gas mixtures from the list of He, H2, O2, N2, CH4, and CO2 reveals an upper bound relationship for these mixtures.
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Mixed matrix membranes (mmms) comprising organic polymers with dispersed inorganic fillers for gas separation
TL;DR: In this article, a review of mixed matrix membranes (MMMs) is presented, including two immediate challenges: achieving an optimized interface structure, and forming asymmetric or composite membrane with an ultrathin and defect-free mixed matrix skin.
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Basis of Permeability/Selectivity Tradeoff Relations in Polymeric Gas Separation Membranes
TL;DR: In this article, a fundamental theory for gas separation properties of polymer membrane materials following distinct tradeoff relations is presented. But the authors do not consider the effect of the size of the gas mixture.
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Ultrapermeable, Reverse-Selective Nanocomposite Membranes
Timothy C. Merkel,Benny D. Freeman,Richard J. Spontak,Zhenjie He,Ingo Pinnau,Pavla Meakin,Anita J. Hill +6 more
TL;DR: It is discovered that physical dispersion of nonporous, nanoscale, fumed silica particles in glassy amorphous poly(4-methyl-2-pentyne) simultaneously and surprisingly enhances both membrane permeability and selectivity for large organic molecules over small permanent gases.