Journal ArticleDOI
Porous, Crystalline, Covalent Organic Frameworks
Adrien P. Côté,Annabelle I. Benin,Nathan W. Ockwig,Michael O'Keeffe,Adam J. Matzger,Omar M. Yaghi +5 more
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TLDR
Covalent organic frameworks (COFs) have been designed and successfully synthesized by condensation reactions of phenyl diboronic acid and hexahydroxytriphenylene to form rigid porous architectures with pore sizes ranging from 7 to 27 angstroms.Abstract:
Covalent organic frameworks (COFs) have been designed and successfully synthesized by condensation reactions of phenyl diboronic acid {C6H4[B(OH)2]2} and hexahydroxytriphenylene [C18H6(OH)6]. Powder x-ray diffraction studies of the highly crystalline products (C3H2BO)6.(C9H12)1 (COF-1) and C9H4BO2 (COF-5) revealed expanded porous graphitic layers that are either staggered (COF-1, P6(3)/mmc) or eclipsed (COF-5, P6/mmm). Their crystal structures are entirely held by strong bonds between B, C, and O atoms to form rigid porous architectures with pore sizes ranging from 7 to 27 angstroms. COF-1 and COF-5 exhibit high thermal stability (to temperatures up to 500 degrees to 600 degrees C), permanent porosity, and high surface areas (711 and 1590 square meters per gram, respectively).read more
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N,N′-Bicarbazole: A Versatile Building Block toward the Construction of Conjugated Porous Polymers for CO2 Capture and Dyes Adsorption
TL;DR: N,N′-bicarbazole with almost spatially vertical structure was synthesized by a facile method and was demonstrated as a versatile building block for conjugated microporous polymers (CMPs) through transition metal catalyzed coupling polymerizations including Yamamoto, Suzuki, and Sonogashira polymerizations as discussed by the authors.
Journal ArticleDOI
Crystallization of Covalent Organic Frameworks for Gas Storage Applications.
Lijuan Zhu,Yue-Biao Zhang +1 more
TL;DR: The progress in the crystallization of COF materials and their hydrogen, methane and carbon dioxide gas storage properties for clean energy applications is reviewed.
Journal ArticleDOI
Identification Schemes for Metal-Organic Frameworks To Enable Rapid Search and Cheminformatics Analysis
Benjamin J. Bucior,Andrew S. Rosen,Maciej Haranczyk,Zhenpeng Yao,Michael E. Ziebel,Omar K. Farha,Joseph T. Hupp,J. Ilja Siepmann,Alán Aspuru-Guzik,Randall Q. Snurr +9 more
TL;DR: The modular nature of metal–organic frameworks (MOFs) leads to a very large number of possible structures, and high-throughput computational screening has led to a rapid increase in property data that is compatible with MOFs.
Journal ArticleDOI
Preparation of Freestanding Conjugated Microporous Polymer Nanomembranes for Gas Separation
Peter Lindemann,Manuel Tsotsalas,Sergey Shishatskiy,Volker Abetz,Peter Krolla-Sidenstein,Carlos Azucena,Laure Monnereau,André Beyer,Armin Gölzhäuser,Veronica Mugnaini,Hartmut Gliemann,Stefan Bräse,Christof Wöll +12 more
TL;DR: In this paper, the authors reported the synthesis of freestanding CMP-nanomembranes via layer-by-layer growth of a "click" based conjugated microporous polymer on a sacrificial substrate.
Journal ArticleDOI
Function-oriented synthesis of two-dimensional (2D) covalent organic frameworks – from 3D solids to 2D sheets
TL;DR: Some emerging applications of two-dimensional COFs in solid-state photoluminescence, stimuli-responsive COFs, gas storage, ion conduction and energy storage, and the intricate design principles that enable these COFs to perform better than their building blocks or polymeric counterparts are reviewed.
References
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Book
Adsorption by Powders and Porous Solids: Principles, Methodology and Applications
TL;DR: In this paper, the authors provide an introductory review of the various theoretical and practical aspects of adsorption by powders and porous solids with particular reference to materials of technological importance.
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An ordered mesoporous organosilica hybrid material with a crystal-like wall structure.
TL;DR: The surfactant-mediated synthesis of an ordered benzene–silica hybrid material has an hexagonal array of mesopores and crystal-like pore walls that exhibit structural periodicity, and it is expected that other organosilicas and organo-metal oxides can be produced in a similar fashion, to yield a range of hierarchically ordered mesoporous solids with molecular-scale pore surface periodicity.
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Unified Approach to Pore Size Characterization of Microporous Carbonaceous Materials from N2, Ar, and CO2 Adsorption Isotherms†
TL;DR: In this paper, a unified approach to pore size characterization of microporous carbonaceous materials such as activated carbon and carbon fibers by nitrogen, argon, and carbon dioxide adsorption at standard temperatures, 77 K for N2 and Ar and 273 K for CO2, was presented.
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Adsorption Study of Surface and Structural Properties of MCM-41 Materials of Different Pore Sizes
TL;DR: In this paper, the pore size of MCM-41 materials was estimated based on geometrical considerations of the ratio of pore volume to pore wall volume for an infinite hexagonal array of cylindrical pores.