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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Homochiral Porous Organic Cage with High Selectivity for the Separation of Racemates in Gas Chromatography.
TL;DR: The use of a homochiral porous organic cage (POC) diluted with a polysiloxane (OV-1701) as a stationary phase for high-resolution gas chromatography (GC) with excellent enantioselectivity and good selectivity indicates that porous organic molecular materials will become more attractive in separation science.
Journal ArticleDOI
One-Step Construction of Hydrophobic MOFs@COFs Core-Shell Composites for Heterogeneous Selective Catalysis.
Mengke Cai,Yinle Li,Qinglin Liu,Ziqian Xue,Hai-Ping Wang,Ya-Nan Fan,Kelong Zhu,Zhuofeng Ke,Cheng-Yong Su,Guangqin Li +9 more
TL;DR: The synthetic strategy in this systematic study develops a new rational design for the synthesis of other core–shell MOF/COF‐based hybrid materials, which can expand the promising applications.
Journal ArticleDOI
Covalent triazine frameworks – a sustainable perspective
TL;DR: In this paper, a review summarizes the development of CTFs and its application in gas storage and separation, pollutant removal and catalysis, and a critical outlook from a sustainable perspective on its design as well as application is provided focusing on its practical implementation.
Journal ArticleDOI
Inverse-vulcanization of vinyl functionalized covalent organic frameworks as efficient cathode materials for Li–S batteries
TL;DR: In this paper, a mesoporous imine COF with densely arranged reactive vinyl groups (COF-V) was used as a cathode material for Li-S batteries, which demonstrated a high initial capacity of 1400 mA h g−1 which retained 959mA hg−1 after 100 cycles at 02C and can be further cycled 1000 times at 1C with a low fading rate of 0057% per cycle.
Journal ArticleDOI
Standard Practices of Reticular Chemistry
Cornelius Gropp,Stefano Canossa,Stefan Wuttke,Felipe Gándara,Qiaowei Li,Laura Gagliardi,Omar M. Yaghi +6 more
TL;DR: Reticular chemistry is a growing field of science with a multitude of practitioners with diverse frames of thinking, making the need for standard practices and quality indicators ever more compelling.
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.
Journal ArticleDOI
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.