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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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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Porous aromatic frameworks with anion-templated pore apertures serving as polymeric sieves.
TL;DR: A family of quaternary pyridinium-type porous aromatic frameworks with tunable channels that, by combining their specific separation properties, a five-component gas mixture can be separated completely.
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Two-Dimensional Covalent Organic Frameworks with Cobalt(II)-Phthalocyanine Sites for Efficient Electrocatalytic Carbon Dioxide Reduction.
Bin Han,Xu Ding,Baoqiu Yu,Hui Wu,Wei Zhou,Wenping Liu,Chuangyu Wei,Baotong Chen,Dongdong Qi,Hailong Wang,Kang Wang,Yanli Chen,Banglin Chen,Jianzhuang Jiang +13 more
TL;DR: In this article, two-dimensional polyimide-linked phthalocyanine COFs with a four-connected sql net exhibit AA stacking configurations according to powder X-ray diffraction studies, showing permanent porosity, thermal stability above 300 °C and excellent resistance to a 12 M HCl aqueous solution for 20 days.
Journal ArticleDOI
Copper Capture in a Thioether-Functionalized Porous Polymer Applied to the Detection of Wilson’s Disease
Sumin Lee,Gokhan Barin,Cheri M. Ackerman,Abigael Muchenditsi,Jun Xu,Jeffrey A. Reimer,Jeffrey A. Reimer,Svetlana Lutsenko,Jeffrey R. Long,Jeffrey R. Long,Christopher J. Chang,Christopher J. Chang +11 more
TL;DR: PAF-1-SMe, a robust three-dimensional porous aromatic framework (PAF) densely functionalized with thioether groups for selective capture and concentration of copper from biofluids as well as aqueous samples, establishes a valuable starting point for the use of porous polymeric materials in noninvasive diagnostic applications.
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Don't Forget Langmuir-Blodgett Films 2020: Interfacial Nanoarchitectonics with Molecules, Materials, and Living Objects.
Katsuhiko Ariga,Katsuhiko Ariga +1 more
TL;DR: The Langmuir-Blodgett (LB) method can become a promising and powerful strategy in interfacial nanoarchitectonics and there is plenty of room at the interfaces, as shown in LB research examples described in this feature articles.
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Electrochemical ultrasensitive detection of cardiac troponin I using covalent organic frameworks for signal amplification
TL;DR: The proposed ultrasensitive sandwich-type electrochemical immunosensor for the quantitative detection of cardiac troponin I exhibits good stability, acceptable reproducibility and accuracy, indicating potential applications in clinical diagnostics.
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.