A solid solution zeolitic imidazolate framework as a room temperature efficient catalyst for the chemical fixation of CO<sub>2</sub>

Kuruppathparambil, Roshith Roshan; Babu, Robin; Jeong, Hye Min; Hwang, Gyu-Young; Jeong, Gyeong Seon; Kim, Moon-Il; Kim, Dongwoo; Park, Dae‐Won

doi:10.1039/c6gc01614f

Cited by 130 publications

(55 citation statements)

References 41 publications

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“…In recent years, much attention has been paid to the usage of MOFs as porous heterogeneous catalysts for the conversion of CO 2 into cyclic carbonates through an atom economy reaction by using various epoxides . Importantly, ZIFs showed promising catalytic activity even at moderate temperatures without co‐catalysts and solvents . The catalytic activity of ZIFs is mainly originating from the presence of neighboring Lewis acid (metal ions) and base (N in imidazole) sites, which facilitate the simultaneous capture and conversion of CO 2 in the presence of epoxide to produce cyclic carbonates .…”

Section: Introductionmentioning

confidence: 99%

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO₂

Kim

Büyükçakır

et al. 2017

Adv Funct Materials

134

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The introduction of hierarchical porosity into metal-organic frameworks (MOFs) has been of considerable interest in gas separation and heterogeneous catalysis due to the efficient mass transfer kinetics through meso/ macropores. Here, a facile, scalable approach is reported for the preparation of carbon nitride (CN) foams as structural templates with micrometer-sized pores and high nitrogen content of 25.6 wt% by the fast carbonization of low-cost melamine foam. The nitrogen functionalities of CN foam facilitate chemical anchoring and growth of ZIF-8 (zeolitic imidazolate frameworks) crystals, which leads to the development of hierarchical porosity. The growth of ZIF-8 crystals also renders CN foam, which is hydrophilic in nature, highly hydrophobic exhibiting 135° of water contact angle due to the enhanced surface roughness, thus creating a natural shield for the MOF crystals against water. The introduction of ZIF-8 crystals onto the CN foam enables selective absorption of oils up to 58 wt% from water/oil mixtures and also facilitates the highly efficient conversion of CO 2 to chloropropene carbonate in a quantitative yield with excellent product selectivity. Importantly, this present approach could be extended to the vast number of MOF structures, including the ones suffering from water instability, for the preparation of highly functional materials for various applications.

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Section: Introductionmentioning

confidence: 99%

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO₂

Kim

Büyükçakır

et al. 2017

Adv Funct Materials

134

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“…In spite of the advances regarding the fabrication of hollow MOF structures, the further investigation of their catalytic properties, especially in organic transformations is still in its infancy but of potentially high interest . As a subclass of MOFs, zeolitic imidazole frameworks (ZIFs) have been recently proposed as promising candidates for chemical fixation of CO 2 with epoxides due to the suitable Lewis sites in their framework and enhanced “CO 2 capture” capability associated with imidazole unites . Hence, it will be very interesting to construct such ZIFs with unique hollow structure and explore their possibilities for potential application in the chemical fixation of CO 2 process.…”

Section: Introductionmentioning

confidence: 96%

“…[41,43] As as ubclass of MOFs,z eolitic imidazole frameworks (ZIFs) have been recently proposed as promising candidates for chemical fixation of CO 2 with epoxides due to the suitable Lewis sites in their framework and enhanced "CO 2 capture" capability associated with imidazole unites. [53][54][55][56][57] Hence, it will be very interesting to constructs uch ZIFs with uniqueh ollow structure and explore their possibilities for potential application in the chemical fixation of CO 2 process. One can expect that the hollow structurec haracteristic of shortened channel length and more exposed active sites will be good for enhancing the catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Hollow Zn−Co Based Zeolitic Imidazole Framework as a Robust Heterogeneous Catalyst for Enhanced CO₂ Chemical Fixation

Song

et al. 2019

Chemistry An Asian Journal

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The efficient chemical conversion of carbon dioxide (CO2) into value‐added fine chemicals is an intriguing but challenging route in sustainable chemistry. Herein, a hollow‐structured bimetallic zeolitic imidazole framework composed of Zn and Co as metal centers (H‐ZnCo‐ZIF) has been successfully prepared via a post‐synthetic strategy based on controllable chemical‐etching of the preformed solid ZnCo‐ZIF in tannic acid. The creation of hollow cavities inside each monocrystalline ZIFs could be achieved without destroying the intrinsic frameworks, as characterized by field‐emission scanning electron microscopy, transmission electron microscopy, and X‐ray diffraction technologies. The as‐synthesized H‐ZnCo‐ZIF exhibited remarkable catalytic activity in the cycloaddition of CO2 with epoxides to the corresponding cyclic carbonates, outperforming the solid ZnCo‐ZIF analogue due to the improved mass transfer originating from the hollow structure. More importantly, due to stabilization of metal centers in the ZIF framework by the tannic acid shell, H‐ZnCo‐ZIF exhibited good recyclability, and no activity loss could be observed in six runs. The present study provides a simple and effective strategy to enhance the catalytic performance of ZIFs by creating a hollow structure via chemical etching.

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“…In this regard, the use of organic solvents for chemical conversions is one of the most important issues in green chemistry, owing to their harmful influence on the environment and human health . Therefore, the use of less toxic solvents and the development of recycled heterogeneous catalysts are key strategies for green chemistry . The replacement of harmful solvents by environmentally friendly water, ionic liquids, or supercritical carbon dioxide has become one of the most desirable routes for sustainable chemistry .…”

Section: Introductionmentioning

confidence: 99%

Highly Stable Copper(I)–Thiacalix[4]arene‐Based Frameworks for Highly Efficient Catalysis of Click Reactions in Water

Wang

Yang

et al. 2019

Chemistry A European J

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Environmentally friendly metal–organic frameworks (MOFs) have gained considerable attention for their potential use as heterogeneous catalysts. Herein, two CuI‐based MOFs, namely, [Cu4Cl4L]⋅CH3OH⋅1.5 H2O (1‐Cl) and [Cu4Br4L]⋅DMF⋅0.5 H2O (1‐Br), were assembled with new functionalized thiacalix[4]arenes (L) and halogen anions X− (X=Cl and Br) under solvothermal conditions. Remarkably, catalysts 1‐Cl and 1‐Br exhibit great stability in aqueous solutions over a wide pH range. Significantly, MOFs 1‐Cl and 1‐Br, as recycled heterogeneous catalysts, are capable of highly efficient catalysis for click reactions in water. The MOF structures, especially the exposed active CuI sites and 1D channels, play a key role in the improved catalytic activities. In particular, their catalytic activities in water are greatly superior to those in organic solvents or even in mixed solvents. This work proposes an attractive route for the design and self‐assembly of environmentally friendly MOFs with high catalytic activity and reusability in water.

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A solid solution zeolitic imidazolate framework as a room temperature efficient catalyst for the chemical fixation of CO₂

Abstract: A solid solution ZIF as a versatile and eco-friendly catalyst for CO2 fixation at room temperature.

Cited by 130 publications

References 41 publications

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO₂

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO₂

Hollow Zn−Co Based Zeolitic Imidazole Framework as a Robust Heterogeneous Catalyst for Enhanced CO₂ Chemical Fixation

Highly Stable Copper(I)–Thiacalix[4]arene‐Based Frameworks for Highly Efficient Catalysis of Click Reactions in Water

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A solid solution zeolitic imidazolate framework as a room temperature efficient catalyst for the chemical fixation of CO2

Abstract: A solid solution ZIF as a versatile and eco-friendly catalyst for CO2 fixation at room temperature.

Cited by 130 publications

References 41 publications

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO2

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO2

Hollow Zn−Co Based Zeolitic Imidazole Framework as a Robust Heterogeneous Catalyst for Enhanced CO2 Chemical Fixation

Highly Stable Copper(I)–Thiacalix[4]arene‐Based Frameworks for Highly Efficient Catalysis of Click Reactions in Water

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Product

Resources

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A solid solution zeolitic imidazolate framework as a room temperature efficient catalyst for the chemical fixation of CO₂

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO₂

Highly Hydrophobic ZIF‐8/Carbon Nitride Foam with Hierarchical Porosity for Oil Capture and Chemical Fixation of CO₂

Hollow Zn−Co Based Zeolitic Imidazole Framework as a Robust Heterogeneous Catalyst for Enhanced CO₂ Chemical Fixation