Journal ArticleDOI
Grain Boundary Defect Elimination in a Zeolite Membrane by Rapid Thermal Processing
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TLDR
Rapid thermal processing can improve the separation performance of thick columnar films of a certain zeolite (silicalite-1) by eliminating grain boundary defects, possibly by strengthening grain bonding at the grain boundaries.Abstract:
Microporous molecular sieve catalysts and adsorbents discriminate molecules on the basis of size and shape. Interest in molecular sieve films stems from their potential for energy-efficient membrane separations. However, grain boundary defects, formed in response to stresses induced by heat treatment, compromise their selectivity by creating nonselective transport pathways for permeating molecules. We show that rapid thermal processing can improve the separation performance of thick columnar films of a certain zeolite (silicalite-1) by eliminating grain boundary defects, possibly by strengthening grain bonding at the grain boundaries. This methodology enables the preparation of silicalite-1 membranes with high separation performance for aromatic and linear versus branched hydrocarbon isomers and holds promise for realizing high-throughput and scalable production of these zeolite membranes with improved energy efficiency.read more
Citations
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Journal ArticleDOI
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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Carbon dioxide capture-related gas adsorption and separation in metal-organic frameworks
Jian-Rong Li,Yuguang Ma,M. Colin McCarthy,Julian P. Sculley,Jiamei Yu,Hae-Kwon Jeong,Perla B. Balbuena,Hong-Cai Zhou +7 more
TL;DR: In this article, the authors review the research progress in metal-organic frameworks (MOFs) for CO 2 adsorption, storage, and separations that are directly related to CO 2 capture.
Journal ArticleDOI
Metal–organic framework membranes: from synthesis to separation application
TL;DR: This critical review provides an overview of the diverse MOF membranes that have been prepared, beginning with a brief introduction to the current techniques for the fabrication ofMOF membranes.
Journal ArticleDOI
Dispersible exfoliated zeolite nanosheets and their application as a selective membrane
Kumar Varoon,Xueyi Zhang,Bahman Elyassi,Damien D. Brewer,Melissa Gettel,Sandeep Kumar,J. Alex Lee,Sudeep Maheshwari,Anudha Mittal,Chun Yi Sung,Matteo Cococcioni,Lorraine F. Francis,Alon V. McCormick,K. Andre Mkhoyan,Michael Tsapatsis +14 more
TL;DR: The synthesis and structure determination of highly crystalline nanosheets of zeolite frameworks MWW and MFI are demonstrated, which allow them to pack well on porous supports, facilitating the fabrication of molecular sieve membranes.
Journal ArticleDOI
Interfacial microfluidic processing of metal-organic framework hollow fiber membranes
Andrew J. Brown,Nicholas A. Brunelli,Nicholas A. Brunelli,Kiwon Eum,Fereshteh Rashidi,J.R. Johnson,William J. Koros,Christopher W. Jones,Sankar Nair +8 more
TL;DR: A potentially scalable route for making high-quality gas separation membranes in a high-surface-area configuration using a two-solvent interfacial approach for positional control over membrane formation and an in situ module for membrane fabrication and permeation is presented.
References
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Journal ArticleDOI
Microstructural optimization of a zeolite membrane for organic vapor separation.
Zhiping Lai,Griselda Bonilla,Isabel Díaz,José Geraldo Nery,Khristina Sujaoti,Miguel A. Amat,Efrosini Kokkoli,Osamu Terasaki,Robert Thompson,Michael Tsapatsis,Dionisios G. Vlachos +10 more
TL;DR: Comparison with previously reported membranes shows that these microstructurally optimized films have superior performance for the separation of organic mixtures with components that have small differences in size and shape, such as xylene isomers.
Journal ArticleDOI
Zeolite membranes – Recent developments and progress
Juergen Caro,Manfred Noack +1 more
TL;DR: The remarkable progress made in the preparation and characterization of zeolite membranes during the last few years has stimulated several industrial R&D projects exploiting the shape-selectivity of ZO membranes in mass separation as mentioned in this paper.
Journal ArticleDOI
High-flux MFI membranes
Jonas Hedlund,Johan Sterte,Marc H. Anthonis,Anton-Jan Bons,Barbara Carstensen,Ned Corcoran,Donald M. Cox,Harry W. Deckman,Wim De Gijnst,Peter-Paul de Moor,Frank Wenyih Lai,Jim McHenry,Wilfried J. Mortier,Juan J. Reinoso,Jack Peters +14 more
TL;DR: In this article, the synthesis and evaluation of high performance MFI-type membranes is described, which exhibit fluxes that are one to two orders of magnitude higher than previous literature reports.
Journal ArticleDOI
Hierarchical nanomanufacturing: from shaped zeolite nanoparticles to high-performance separation membranes.
Mark Snyder,Michael Tsapatsis +1 more
TL;DR: New understanding of zeolite growth along with recent advances in the molecular engineering of crystal microstructure and morphology, assembly of crystal monolayers, and synthesis of ordered films constitute a strong foundation for meeting stringent industrial demands in the future.