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
Reads0
Chats0
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
Citations
More filters
Journal ArticleDOI
Sequential Linking To Control Growth of a Surface Covalent Organic Framework
Thomas Faury,Thomas Faury,Sylvain Clair,Sylvain Clair,Mathieu Abel,Mathieu Abel,Frédéric Dumur,Frédéric Dumur,Didier Gigmes,Didier Gigmes,Louis Porte,Louis Porte +11 more
TL;DR: In this article, a new surface covalent organic framework (SCOF) based on a sequential polymerization in two stages was reported. But the growth mechanism was optimized and the polymerization reaction yield could approach 100%.
Journal ArticleDOI
Adsorptive separation of carbon dioxide: From conventional porous materials to metal–organic frameworks
Dong-Dong Zhou,Xue-Wen Zhang,Zong-Wen Mo,Yuzhi Xu,Yuzhi Xu,Xiao-Yun Tian,Yun Li,Xiao-Ming Chen,Jie-Peng Zhang +8 more
TL;DR: In this paper, the main challenges in CO2 adsorptive separation and strategies developed for the typical types of porous materials, especially for metal-organic frameworks are discussed and analyzed for different types of adsorbents such as activated carbons, zeolites, porous silica, porous polymers or porous organic polymers.
Journal ArticleDOI
Dual‐Function Fluorescent Covalent Organic Frameworks: HCl Sensing and Photocatalytic H2 Evolution from Water
Ahmed El-Mahdy,Ahmed El-Mahdy,Ahmed M. Elewa,Sheng‐Wen Huang,Ho-Hsiu Chou,Shiao-Wei Kuo,Shiao-Wei Kuo +6 more
Journal ArticleDOI
Crystalline fibres of a covalent organic framework through bottom-up microfluidic synthesis
David Rodríguez-San-Miguel,Afshin Abrishamkar,Afshin Abrishamkar,Jorge A. R. Navarro,Romen Rodriguez-Trujillo,David B. Amabilino,Rubén Mas-Ballesté,Félix Zamora,Félix Zamora,Josep Puigmartí-Luis +9 more
TL;DR: A microfluidic chip has been used to prepare fibres of a porous polymer with high structural order, setting a precedent for the generation of a wide variety of materials using this reagent mixing approach that provides unique materials not accessible easily through bulk processes.
Journal ArticleDOI
Branching out with aminals: microporous organic polymers from difunctional monomers
Andrea Laybourn,Robert Dawson,Rob Clowes,Jonathan A. Iggo,Andrew I. Cooper,Yaroslav Z. Khimyak,Dave J. Adams +6 more
TL;DR: In this paper, primary amines were reacted with imines to produce porous polymers from A2 + B2 monomer combinations, and the resulting networks exhibit BET surface areas in the range 500-600 m2 g−1.
References
More filters
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.