Ionic Conductivity in the Metal–Organic Framework UiO‐66 by Dehydration and Insertion of Lithium <i>tert</i>‐Butoxide

Ameloot, Rob; Aubrey, Michael L.; Wiers, Brian M.; Gómora‐Figueroa, A. Paulina; Patel, Shrayesh N.; Balsara, Nitash P.

doi:10.1002/chem.201300326

Cited by 196 publications

(156 citation statements)

References 55 publications

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“…Given their high chemical stability and hydrophilicity, 12–17 we deemed MOFs with hexazirconium oxo hydroxo (Zr 6 O 4 (OH) 4 ) cluster nodes, such as UiO-66, 16–22 to be suitable model targets for modifications to capture both As V and As III from aqueous media. We predicted strong interactions between the nodes of UiO-66 and [As V O 4 H 3– n ] n – oxyanions (Fig.…”

Section: Introductionmentioning

confidence: 99%

The dual capture of As^V and As^III by UiO-66 and analogues

et al. 2016

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Section: Introductionmentioning

confidence: 99%

The dual capture of As^V and As^III by UiO-66 and analogues

et al. 2016

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“…[8][9][10][11][12] Apart from these properties, an extraordinary feature of MOFs which makes them more interesting is that the supramolecular design of MOFs allows easy tunability depending upon the organic ligands and metal centers giving a versatile desirable properties in synthesized matrices. Recently many studies have been conducted for the application of MOFs in electrochemical energy storage devices especially, Li-ion batteries.…”

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confidence: 99%

Modified Metal Organic Frameworks (MOFs)/Ionic Liquid Matrices for Efficient Charge Storage

Singh

Vedarajan

Matsumi

2017

J. Electrochem. Soc.

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In this study, an ionic liquid incorporated modified MOF was synthesized to serve as an efficient electrolyte system for Li-ion batteries. Further, the MOF (IL) was doped with a lithium salt, lithium bis(triflouromethylsulfonyl) imide (LiTFSI) by a modified procedure. Samples with varying amount of MOF (IL) in ionic liquid were prepared, characterized and evaluated for their electrochemical behavior. A high conductivity in order of 10 −2 -10 −3 Scm −1 at 51 • C and a low activation energy of ion transport was observed in all samples. The systems showed high electrochemical stability to be employed as gel electrolyte in Li ion secondary batteries. These systems showed highly reversible capacity of over 3000 mAhg −1 in the charge-discharge studies carried out after fabricating anodic half-cell composed of Si/electrolyte/Li. These results illustrate the feasibility of the prepared modified MOF (IL) as potential solid state electrolytes for Li ion secondary batteries.

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“…Treatment of the dehydrated UiO-66 with lithium tbutoxide results in the butoxide anions being grafted onto the Zr(IV) sites, and the material must incorporate Li(I) cations in order to achieve charge balance. 47 The lithium butoxide-grafted UiO-66 is an ionic conductor with mobile Li(I) cations; hence, it may be suitable as a solid electrolyte for Li-based batteries. Similar studies investigating the potential of MOFs as electrolytes in lithium batteries have targeted coordinatively unsaturated Mg(II) sites.…”

Section: Chemical Modification Of Mof That Induces Cation Uptakementioning

confidence: 99%

“…48 There is currently considerable interest in MOFs as electrode materials for lithium ion batteries, owing to their ability to uptake and release Li(I) ions. [47][48][49][50][51] Another approach to metallation of a MOF is to chemically reduce a neutral MOF with concomitant cation uptake to balance the charge, which has been pursued by Hupp and coworkers. 52-54 Remarkably, reduction of the twofold interpenetrating MOF [Zn 2 (ndc) 2 (dipyni)] (ndc = 2,6-napthalenedicarboxylate; dipyni = N,N ′ -di-(4-pyridyl)-1,4,5,8-napthalenetetracarboxydiimide) can be achieved by direct reaction with Li(0) in DMF.…”

Section: Chemical Modification Of Mof That Induces Cation Uptakementioning

confidence: 99%

Metal‐Organic Frameworks: Metal‐Uptake

Hardie

2014

Encyclopedia of Inorganic and Bioinorganic Chemistry

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Metal‐organic frameworks (MOFs) contain metal cations that are inherent to their framework structure and may also be intrinsic to material properties such as magnetism, catalysis, and luminescence. Uptake of additional metals by a MOF has the potential to introduce new functionality or to alter functionality and thus finds a variety of potential applications. For example, catalysis, luminescence or color changes for sensors, ion exchange, removal of metal contaminants from the atmosphere or solution, altering gas‐binding properties of a MOF by creation of electric dipoles on the framework surface, and ion transport for battery applications. Post‐synthetic modification (PSM) involves the solid‐state MOF framework being chemically altered. PSM of MOFs may occur such that additional or new heterometallic cations or metal‐containing moieties are taken up by the MOF. There are a number of mechanisms to effect metal uptake in MOFs. Direct grafting of metal cations onto the MOF frameworks can occur at pendant, unmetallated sites embedded within the framework linker ligand. For example, through pendant thiols or alcohol groups lining framework pores, or through unmetallated chelating or macrocyclic groups embedded in the framework. Organometallic fragments can be directly grafted onto the arene rings of MOF ligands. PSM of pendant organic functional groups can be used to either create a new ligand group for metal binding, or to directly tether a metal complex. Other mechanisms for forming pendant metal‐binding groups are to demetallation a nonstructural metal cation site, for example, within a linking metal‐salen ligand, or to use a ligand defect approach where ligands with additional binding sites are doped into the MOF during its synthesis. Ion exchange of counter‐anions within the pores of anionic MOFs is another method for metal uptake, and often involves the exchange of an organic counter‐cation for a metal. Metal‐containing guest molecules can be absorbed into the pores of MOFs through solution immersion or chemical vapor deposition techniques. Such complexes are often precursors to form metal@MOFs hydrid materials where metal nanoparticles are embedded in the pores. Exchange may also occur between structural components of a MOF, and metal cation metathesis, also referred to as transmetallation, is where metal cations within the framework are substituted for a different cation, usually with retention of the gross original framework structure.

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Ionic Conductivity in the Metal–Organic Framework UiO‐66 by Dehydration and Insertion of Lithium tert‐Butoxide

Cited by 196 publications

References 55 publications

The dual capture of As^V and As^III by UiO-66 and analogues

The dual capture of As^V and As^III by UiO-66 and analogues

Modified Metal Organic Frameworks (MOFs)/Ionic Liquid Matrices for Efficient Charge Storage

Metal‐Organic Frameworks: Metal‐Uptake

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Ionic Conductivity in the Metal–Organic Framework UiO‐66 by Dehydration and Insertion of Lithium tert‐Butoxide

Cited by 196 publications

References 55 publications

The dual capture of AsV and AsIII by UiO-66 and analogues

The dual capture of AsV and AsIII by UiO-66 and analogues

Modified Metal Organic Frameworks (MOFs)/Ionic Liquid Matrices for Efficient Charge Storage

Metal‐Organic Frameworks: Metal‐Uptake

Contact Info

Product

Resources

About

The dual capture of As^V and As^III by UiO-66 and analogues

The dual capture of As^V and As^III by UiO-66 and analogues