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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Control Interlayer Stacking and Chemical Stability of Two-Dimensional Covalent Organic Frameworks via Steric Tuning.
TL;DR: This work demonstrates synthetic control of both the layer stacking and chemical stability of 2D COFs by managing interlayer steric hindrance via a multivariate (MTV) approach and underscores the opportunity in using steric hinderrance to tune and control layer stacking, chemical stability and properties of 2 D COFs.
Journal ArticleDOI
Three-Dimensional Tetrathiafulvalene-Based Covalent Organic Frameworks for Tunable Electrical Conductivity.
Hui Li,Jianhong Chang,Shanshan Li,Xinyu Guan,Daohao Li,Cuiyan Li,Lingxue Tang,Ming Xue,Yushan Yan,Valentin Valtchev,Valentin Valtchev,Shilun Qiu,Qianrong Fang +12 more
TL;DR: This report reports the first case of 3D tetrathiafulvalene-based COFs (3D-TTF-COFs) with non- or 2-fold interpenetrated pts topology and tunable electrochemical activity, and opens a way towards designing 3D electroactive COF materials and promote their applications in molecular electronics and energy storage.
Journal ArticleDOI
Metal–Organic Organopolymeric Hybrid Framework by Reversible [2+2] Cycloaddition Reaction
In-Hyeok Park,Anjana Chanthapally,Zhenjie Zhang,Shim Sung Lee,Michael J. Zaworotko,Jagadese J. Vittal,Jagadese J. Vittal +6 more
TL;DR: The crystal structure of a 1D Zn(II) coordination polymer fused with an organic polymer ligand made in–situ by a [2+2] cycloaddition reaction of a six-fold interpenetrated metal-organic framework is reported.
Journal ArticleDOI
A porous covalent porphyrin framework with exceptional uptake capacity of saturated hydrocarbons for oil spill cleanup
TL;DR: PCPF-1 possesses a large BET surface area and exhibits strong hydrophobicity with a water contact angle of 135°, which afford it the highest adsorptive capacities for saturated hydrocarbons and gasoline among sorbent materials reported thus far.
Journal ArticleDOI
Emerging concepts in solid-state hydrogen storage: the role of nanomaterials design
Hazel Reardon,James M. Hanlon,Robert W. Hughes,Agata Godula-Jopek,Tapas Kumar Mandal,Tapas Kumar Mandal,Duncan H. Gregory +6 more
TL;DR: In this paper, the authors highlight the state-of-the-art solid-state hydrogen storage and describe newly emerging routes towards meeting the practical demands required of a solid state storage system.
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.