Hybrid glasses from melt-quenched metal-organic frameworks (MOFs) have been emerging as a new class of materials, which combine the functional properties crystalline MOFs with processability glasses. However, only handful are meltable. Porosity and metal-linker interaction strength both identified crucial parameters in trade-off between thermal decomposition organic linker and, more desirably, melting. For example, inability prototypical zeolitic imidazolate framework (ZIF) ZIF-8 to melt, is...

Abstract Porous metal–organic frameworks have emerged to resolve important challenges of our modern society, such as CO 2 sequestration. Zeolitic imidazolate (ZIFs) can undergo a glass transition form ZIF glasses; they combine the liquid handling classical glasses with tremendous potential for gas separation applications ZIFs. Using millimetre-sized ZIF-62 single crystals and centimetre-sized glass, we demonstrate scalability processability materials. Further, following evolution penetration...

Here, we present a new concept of core–shell type ionic liquid/metal organic framework (IL/MOF) composite. A hydrophilic IL, 1-(2-hydroxyethyl)-3-methylimidazolium dicyanamide, [HEMIM][DCA], was deposited on hydrophobic zeolitic imidazolate framework, ZIF-8. The composite exhibited approximately 5.7 times higher CO2 uptake and 45 CO2/CH4 selectivity at 1 mbar 25 °C compared to the parent MOF. Characterization showed that IL molecules external surface MOF, forming core (MOF)–shell (IL)...

Twenty-nine different imidazolium ionic liquids (ILs) were combined with two metal–organic frameworks (MOFs), ZIF-8 and CuBTC, the resulting IL/MOF composites characterized in detail by combining X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET), Fourier transform infrared (FTIR) spectroscopy. Characterization data illustrated that MOFs remained structurally intact upon them ILs. Thermogravimetric analysis performed on showed most of have lower thermal...

Abstract Hybrid glasses derived from meltable metal‐organic frameworks (MOFs) have emerged as a new class of amorphous materials. Combining the porosity MOFs with processing ability glasses, they are thought to enable wholly range functional compounds. By way example, it is demonstrated here how intrinsic obtained zeolitic imidazolates (ZIFs) can be used overcome selectivity‐sensitivity trade‐off in electroactive gas sensing. For this, composites fabricated which metallophthalocyanines...

Abstract Metal-organic frameworks (MOFs) are intriguing host materials in composite electrolytes due to their ability for tailoring host-guest interactions by chemical tuning of the MOF backbone. Here, we introduce particularly high sodium ion conductivity into zeolitic imidazolate framework ZIF-8 impregnation with sodium-salt-containing ionic liquid (IL) (Na 0.1 EMIM 0.9 )TFSI. We demonstrate an exceeding 2 × 10 −4 S · cm −1 at room temperature, activation energy as low 0.26 eV, i.e .,...

Abstract Hybrid glass formation offers a potential route for processing metal‐organic frameworks (MOFs) in bulk shapes, however, only small number of MOFs have proven to be meltable. For the non‐meltable zeolitic imidazolate framework ZIF‐8, ionic liquid (IL) incorporation has recently been found reduce melting temperature below thermal decomposition temperature, thus, enabling IL@ZIF‐8 glasses. Here, effect IL on enthalpic response some (ZIFs) and other upon heating is reported. ZIF‐62,...

1-N-Butyl-3-methylimidazolium hexafluorophosphate, [BMIM][PF6], and its methylated form, 1-N-butyl-2,3-dimethylimidazolium [BMMIM][PF6], were incorporated into CuBTC to examine the effect of methylation ionic liquids (ILs) on gas separation performance corresponding IL/metal-organic framework (MOF) composites. Spectroscopic analysis revealed that interactions ILs with weaker compared those non-methylated counterpart. Gas uptake measurements illustrated this difference in influences...

One of the structural factors controlling extent interactions between ionic liquids (ILs) and metal–organic frameworks (MOFs) in IL/MOF composites is elucidated. Results showed that thermal stability limits adsorption performances can be tuned by interionic interaction energy bulk ILs, which probed spectroscopically via C2H infrared stretching frequency.

Metal-organic framework (MOF) glasses have emerged as a new class of melt-quenched glasses; however, so far, all MOF glass production has remained at lab-scale; future applications will require large-scale, commercial parent crystalline MOFs. Yet, control synthetic parameters, such uniform temperature and mixing, can be challenging, particularly, when scaling-up mixed-linker or zeolitic imidazolate (ZIF). Here, we examine the effect heterogeneous linker distribution on thermal properties...

Abstract Tunable photoluminescence (PL) from transparent inorganic glass matrices is of interest for applications demanding a semitransparent photoconverter that does not elastically scatter incoming light. For this purpose, bismuth (Bi)‐doped optical materials exhibit unique spectral characteristics in terms bandwidth and emission tunability. Here, we demonstrate facile route preparing such converters Bi‐doped calcium‐aluminate calcium‐aluminogermanate glasses. These glasses offer tunable...

Porous materials, such as metal-organic frameworks emerge to solve important quests of our modern society, CO2 sequestration. Zeolitic Imidazolate Frameworks (ZIFs) can undergo a glass transition form ZIF-glasses; they combine the liquid handling classical glasses with tremendous potential for gas separations. Using millimeter-sized ZIF-62 single crystals and centimeter-sized ZIF-62-glass we demonstrate scalability processability. Further, following evolution penetration into ZIF-crystals...

Composites composed of ionic liquids (ILs) and metal-organic framework (MOF) materials have been proposed for a range potential applications, including gas separation, ion conduction, hybrid glass formation. Here, we discover an order transition in IL@MOF composite using the commodity compounds CuBTC (copper benzene-1,3,5-tricarboxylate) EMIMTFSI (1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide). This absent bare MOF or IL provides extended super-cooling latent heat storage at...

Metal-organic framework (MOF) composite materials containing ionic liquids (ILs) have been proposed for a range of potential applications, including gas separation, ion conduction, and hybrid glass formation. Here, an order transition in IL@MOF is discovered using CuBTC (copper benzene-1,3,5-tricarboxylate) [EMIM][TFSI] (1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide). This - absent the bare MOF or IL provides extended super-cooling latent heat at capacity similar to that...

Hybrid glasses from melt-quenched metal-organic frameworks (MOFs) have been emerging as a new class of materials, which combine the functional properties crystalline MOFs with processability glasses. However, only handful vast variety identified being meltable. Porosity and metal-linker interaction strength both crucial parameters in trade-off between thermal decomposition organic linker and, more desirably, melting. For example, inability prototypical zeolitic imidazolate framework (ZIF)...

<p>Metal—organic frameworks (MOFs) are intriguing host materials in composite electrolytes due to their ability for tailoring host-guest interactions by chemical tuning of the MOF backbone. Here, we introduce particularly high sodium ion conductivity into zeolitic imidazolate framework ZIF-8 impregnation with sodium-salt-containing ionic liquid (IL) (Na0.1¬EMIM0.9)TFSI. We demonstrate an exceeding 2×10-4 S ⋅cm-1 at room temperature, activation energy as low 0.26 eV, i.e., highest...

Composites composed of ionic liquids (ILs) and metal-organic framework (MOF) materials have been proposed for a range potential applications, including gas separation, ion conduction, hybrid glass formation. Here, we discover an order transition in IL@MOF composite using the commodity compounds CuBTC (copper benzene-1,3,5-tricarboxylate) EMIMTFSI (1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide). This absent bare MOF or IL provides extended super-cooling latent heat storage at...

Metal—organic frameworks (MOFs) are intriguing host materials in composite electrolytes due to their ability for tailoring host-guest interactions by chemical tuning of the MOF backbone. Here, we introduce particularly high sodium ion conductivity into zeolitic imidazolate framework ZIF-8 impregnation with sodium-salt-containing ionic liquid (IL) (Na0.1¬EMIM0.9)TFSI. We demonstrate an exceeding 2×10-4 S ⋅cm-1 at room temperature, activation energy as low 0.26 eV, i.e., highest reported...

Hybrid glasses from melt-quenched metal-organic frameworks (MOFs) have been emerging as a new class of materials, which combine the functional properties crystalline MOFs with processability glasses. However, only handful are meltable. Porosity and metal-linker interaction strength both identified crucial parameters in trade-off between thermal decomposition organic linker and, more desirably, melting. For example, inability prototypical zeolitic imidazolate framework (ZIF) ZIF-8 to melt, is...

<div>Hybrid glasses from melt-quenched metal-organic frameworks (MOFs) have been emerging as a new class of materials, which combine the functional properties crystalline MOFs with processability glasses. However, only handful vast variety identified being meltable. Porosity and metal-linker interaction strength both crucial parameters in trade-off between thermal decomposition organic linker and, more desirably, melting. For example, inability prototypical zeolitic imidazolate...