Nanovalved Adsorbents for CH<sub>4</sub> Storage

Song, Zhitang; Nambo, Apolo; Tate, Kirby L.; Bao, Ainan; Zhu, Minqi; Jasiński, Jacek B.; Zhou, Shaojun; Meyer, Howard S.; Carreón, Moisés A.; Li, Shiguang; Yu, Miao

doi:10.1021/acs.nanolett.6b00919

Cited by 18 publications

(13 citation statements)

References 27 publications

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“…On a mass-per-volume basis, the level of uptake rivals those of zeolites and metal-organic frameworks, which, for methane at elevated pressures, reach values of 52 and 160 g l , respectively, for a crystalline aluminosilicate (zeolite) with 5 Å pores (100 bar, 293 K) 12 and the metal-organic framework, Fe(bdp), comprising Fe(II) and 1,4-benzenedipyrazolate linkages (70 bar, 298 K) 13 . The uptake of truly large numbers of hydrophobic guests is a natural consequence of moving from molecular to nanoscale building units.…”

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confidence: 99%

Host–guest chemistry with water-soluble gold nanoparticle supraspheres

et al. 2016

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The uptake of molecular guests, a hallmark of the supramolecular chemistry of cages and containers, has yet to be documented for soluble assemblies of metal nanoparticles. Here we demonstrate that gold nanoparticle-based supraspheres serve as a host for the hydrophobic uptake, transport and subsequent release of over two million organic guests, exceeding by five orders of magnitude the capacities of individual supramolecular cages or containers and rivalling those of zeolites and metal-organic frameworks on a mass-per-volume basis. The supraspheres are prepared in water by adding hexanethiol to polyoxometalate-protected 4 nm gold nanoparticles. Each 200 nm assembly contains hydrophobic cavities between the estimated 27,400 gold building blocks that are connected to one another by nanometre-sized pores. This gives a percolated network that effectively absorbs large numbers of molecules from water, including 600,000, 2,100,000 and 2,600,000 molecules (35, 190 and 234 g l ) of para-dichorobenzene, bisphenol A and trinitrotoluene, respectively.H ost-guest phenomena that involve the uptake of gases and small molecules are associated with the supramolecular chemistry of soluble capsules, cages and containers [1][2][3][4][5] or, alternatively, with heterogeneous reactions of porous solid-state materials such as zeolites 6 and metal-organic frameworks 7 . Only now, however, are organized assemblies of metal nanoparticles beginning to serve in a similar capacity as hosts for molecular guests. In organic solvents, for example, light-induced dipoledipole interactions between gold nanoparticles with azobenzenefunctionalized thiolate ligands were recently used to entrap and catalyse the reactions of polar and alkylaromatic substrates 8 . By design, substrates were entrapped during nanoparticle aggregation to overcome the poor uptake and diffusion of molecular guests into colloidal nanocrystal assemblies. However, the uptake of molecular guests, a trait of supramolecular and solid-state chemistry, has so far not been achieved for colloidal nanoparticle assemblies.For that to occur, a thermodynamically favourable driving force must be combined with a porous structure whose interior architecture features host cavities, along with pathways for the effective diffusion of molecular guests from the exterior (bulk solution) to host domains deeply buried in the assembly's interior. If this were achieved, colloidal metal-nanoparticle assemblies could emerge as a new class of functional nano-engineered structures that are uniquely positioned between supramolecular containers and porous solid-state materials.We report a new class of functional assemblies, wherein the hydrophobic effect 9,10 drives the spontaneous uptake of alkyl and alkylaromatic guests 11 by porous 200 nm diameter supraspheres whose host capacities are orders of magnitude larger than those of individual cages or containers. On a mass-per-volume basis, the level of uptake rivals those of zeolites and metal-organic frameworks, which, for methane at elevated pressures, r...

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confidence: 99%

Host–guest chemistry with water-soluble gold nanoparticle supraspheres

et al. 2016

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“…At that time, the carbon was considered just as a subproduct of the reaction of SiC with chlorine for obtaining SiCl 4 . Some decades later, in 1959, Mohun et al [191] showed that carbons obtained at various chlorination temperatures through a slightly modified method had interesting adsorption capacities of some vapors. However, the first detailed study of the porous texture of the CDC carbons by N 2 and CO 2 adsorption was performed by Boehm et al in 1975 [192] over carbons produced by chlorination of SiC and TaC.…”

Section: Carbide-derived Carbonsmentioning

confidence: 99%

“…Unconventional novel materials based on zeolites have also been studied for methane storage. For instance, zeolite 5A beads are coated with a mesoporous amorphous silica layer of MCM-48 [191], in which the outer layer acts as a nanovalve that can be closed by adsorbing 2,2-dimethylbutane. The coated beads adsorb 200% more methane than the bare 5A zeolite beads, reaching adsorption capacities similar to those reported for MOFs (see Fig.…”

Section: Methane Storagementioning

confidence: 99%

Nanoporous Materials for Gas Storage

Ania

Raymundo-Piñero²

2019

Green Energy and Technology

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the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors, and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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“…No que diz respeito à funcionalização desses materiais, importante destacar a predominância de ligações covalentes nesse processo, que podem ocorrer no ligante e/ou no metal, sendo este último caso apenas possível se houver sítios de coordenação insaturados. Dentro dessa perspectiva, estudos vêm sendo realizados envolvendo aplicações desse tipo de material em diferentes áreas como armazenamento 23,24 e separação de gases, 25 catálise heterogênea, 26 liberação de fármacos, 27 fotônica, 28 entre outras. [29][30][31][32] A partir de 2012, a Divisão de Química Inorgânica da IUPAC (União Internacional de Química Pura e Aplicada) tem recomendado o uso da definição oficial de MOF como "uma rede de coordenação com ligantes orgânicos contendo cavidades potencialmente vazias".…”

Section: Introductionunclassified

MOFs (METAL-ORGANIC FRAMEWORKS): UMA FASCINANTE CLASSE DE MATERIAIS INORGÂNICOS POROSOS

Frem¹,

Arroyos²,

Flor³

et al. 2018

Quim. Nova

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MOFs (METAL-ORGANIC FRAMEWORKS): A FASCINATING CLASS OF POROUS INORGANIC MATERIALS. Metal-Organic Frameworks (MOFs) are, according to IUPAC, coordination polymers with an open framework containing potential voids, which can be accessible after activation processes. These materials have aroused interest in the academic environment-and more recently in industry-because their properties such as high crystallinity, permanent microporosity, high surface areas, and the possibility of functionalization. This has enabled applications in different areas, such as gas adsorption, catalysis, drug delivery, photonics and others. Depending on the judicious choice of the metals and the organic linkers, MOFs with different topologies and functions can be created. Synthetic routes for the preparation of these materials will be discussed, highlighting those in consonance with the Green Inorganic Chemistry. Strategies for controlling the size and morphology of the crystals will also be presented, as well the most recent methodologies for the large-scale production. This review will also discuss the use of MOFs in the context of energy and environment, particularly referring to the adsorption and/or transformation of CO 2 , storage of H 2 and CH 4 as well potable water capture.

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Nanovalved Adsorbents for CH₄ Storage

Cited by 18 publications

References 27 publications

Host–guest chemistry with water-soluble gold nanoparticle supraspheres

Host–guest chemistry with water-soluble gold nanoparticle supraspheres

Nanoporous Materials for Gas Storage

MOFs (METAL-ORGANIC FRAMEWORKS): UMA FASCINANTE CLASSE DE MATERIAIS INORGÂNICOS POROSOS

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Nanovalved Adsorbents for CH4 Storage

Cited by 18 publications

References 27 publications

Host–guest chemistry with water-soluble gold nanoparticle supraspheres

Host–guest chemistry with water-soluble gold nanoparticle supraspheres

Nanoporous Materials for Gas Storage

MOFs (METAL-ORGANIC FRAMEWORKS): UMA FASCINANTE CLASSE DE MATERIAIS INORGÂNICOS POROSOS

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Nanovalved Adsorbents for CH₄ Storage