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Journal ArticleDOI

Porous, Crystalline, Covalent Organic Frameworks

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).

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Stable, crystalline, porous, covalent organic frameworks as a platform for chiral organocatalysts

TL;DR: The synthesis of a crystalline porous COF is reported that is stable against water, strong acids and strong bases, and its utility as a material platform for structural design and functional development is demonstrated.
Journal ArticleDOI

Nanoporous organic polymer networks

TL;DR: The use of nanoporous organic polymers for applications such as catalysis and separations is an important developing area, and recent developments as well as highlighting potential future opportunities are discussed in this article.
Journal ArticleDOI

Development and Evaluation of Porous Materials for Carbon Dioxide Separation and Capture

TL;DR: Five adsorbent evaluation criteria from the chemical engineering literature are described and used to assess over 40 MOFs for their potential in CO(2) separation processes for natural gas purification, landfill gas separation, and capture of CO( 2) from power-plant flue gas.
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High capacity hydrogen storage materials: attributes for automotive applications and techniques for materials discovery

TL;DR: A practical introduction to the field of hydrogen storage materials research is provided, with an emphasis on the properties necessary for a viable storage material, the computational and experimental techniques commonly employed in determining these attributes, and the classes of materials being pursued as candidate storage compounds.
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.
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.
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