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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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Journal ArticleDOI

Engineering Metal Organic Frameworks for Heterogeneous Catalysis

TL;DR: In conclusion, MOFs as Host Matrices or Nanometric Reaction Cavities should not be considered as a source of concern in the determination of MOFs’ properties in relation to other materials.
Journal ArticleDOI

Covalent organic frameworks (COFs): from design to applications

TL;DR: This critical review describes the state-of-the-art development in the design, synthesis, characterisation, and application of the crystalline porous COF materials.
Journal ArticleDOI

Covalent organic frameworks

TL;DR: This tutorial review describes the basic design concepts, the recent synthetic advancements and structural studies, and the frontiers of functional exploration of covalent organic frameworks.
Journal ArticleDOI

Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks for Clean Energy Applications

TL;DR: Findings place COFs among the most porous and the best adsorbents for hydrogen, methane, and carbon dioxide.
References
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Journal ArticleDOI

Polymer, Metal, and Hybrid Nano‐ and Mesotubes by Coating Degradable Polymer Template Fibers (TUFT Process)

TL;DR: In this article, the size distribution was still rather large (30 %), and to reduce it a size-selected precipitation process was used, in which two solvents, such as hexane and pyridine, are mixed.
BookDOI

Nanoporous Materials Science and Engineering

Gao Qing Lu, +1 more
TL;DR: Wei et al. as discussed by the authors proposed a non-surfactant route to Nanoporous Materials and its biological applications using 3D Macroporous Photonic Materials Templated by Self Assembled Colloidal Spheres.
Journal ArticleDOI

Heat capacity and thermal conductivity of hexagonal pyrolytic boron nitride

TL;DR: In this article, the authors measured the heat capacity and thermal conductivity of the layered material hexagonal pyrolytic boron nitride from 2 to 10 K by a pulse-heating technique.
Journal ArticleDOI

Accurate Method for Calculating Mesopore Size Distributions from Argon Adsorption Data at 87 K Developed Using Model MCM-41 Materials

TL;DR: In this paper, the pore sizes of the MCM-41 samples were accurately determined in earlier studies on the basis of powder X-ray diffraction and nitrogen adsorption using a geometrical relation between pore volume, pore−center distance, and pore size in the honeycomb structure.
Journal ArticleDOI

Cross-linked poly(orthocarbonate)s as organic solvent sorbents

TL;DR: In this article, a simple method for the synthesis of a series of cross-linked poly(orthocarbonate)s (CPOCs) based on tetraethyl orthocarbonates is reported.
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