Zeolitic imidazolate framework-68 as an efficient heterogeneous catalyst for chemical fixation of carbon dioxide

Yang, Lili; Yu, Lin; Diao, Guiqiang; Sun, Ming; Cheng, Gao; Chen, Suyi

doi:10.1016/j.molcata.2014.05.033

Cited by 106 publications

(31 citation statements)

References 34 publications

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“…More importantly, Lewis basic sites (ÀNÀ and ÀNH 2 )a re relatively close to Zn II in ac onfined nanospace of about 2.12 and 3.59 ,l eadingt oa more effective synergistic catalytic effect between the Lewis acid-basep air.Apossible mechanism is illustrated in Figure 4. [47][48][49] Firstly,o xygen atoms of epoxides could be activated by the Lewis acid Zn II sites, leadingt os ignificant weakening of associated CÀOb onds. Meanwhile, the enriched CO 2 molecules in 3D porousf ramework are further activated by the Lewis basic sites to afford carbamate species, which then will interactw ith the weaker CÀOb onding of epoxidest of orm ring-opening intermediates.…”

Section: Catalytic Propertiesmentioning

confidence: 99%

“…[43][44][45][46] Further,t he ÀNH 2 group in adeninatem ay serve as the Lewis basic site to boost the CO 2 cycloaddition reaction via the Lewis acid catalytic center,o nt he basis of the acid-base synergistic catalytic mechanism. [47][48][49] As ap roof for our hypothesis,w ef irst designed and constructed ap orousM OF {(Me 2 NH 2 ) 2 ·[Zn 8 (Ad) 4 (DABA) 6 O]·7 DMF} n (1)b ased on the mixed-ligand strategy [50] with Zn II -adeninate (Ad) and 2,2'-dimethyl-4,4'-azodibenzoate (DABA) as building blocks. The 3D porousf ramework shows excellent catalytic performance for cycloaddition of CO 2 with epoxides to afford cyclic carbonates at 100 8Ca nd only 1atm CO 2 without any solventa nd cocatalyst.…”

Section: Introductionmentioning

confidence: 99%

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Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO₂ Cycloaddition under Mild and Cocatalyst‐Free Conditions

Zhu

Zhao

et al. 2019

Chemistry A European J

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CO2 is considered as the primary greenhouse gas, resulting in a series of serious environmental problems that affect people's life and health. Carbon capture and sequestration has been implemented as one of the most appealing pathways to control and use CO2. Here, we rationally integrate various functional sites within the confined nanospace of a microporous metal–organic framework (MOF) material, which is constructed by mixed‐ligand strategy based on metal‐adeninate vertices. It not only exhibits excellent stability but also can efficiently transform CO2 and epoxides to cyclic carbonates under mild and cocatalyst‐free conditions. Additionally, this catalyst shows extraordinary recyclability for the CO2 cycloaddition reaction.

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Section: Catalytic Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO₂ Cycloaddition under Mild and Cocatalyst‐Free Conditions

Zhu

Zhao

et al. 2019

Chemistry A European J

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“…Several types of heterogeneous catalysts, including metal oxides (Yano et al, 1997;Yamaguchi et al, 1999;Yasuda et al, 2002Yasuda et al, , 2005, zeolites (Doskocil et al, 1999), silica-supported salts (Wang et al, 2006), titanosilicates (Srivastava et al, 2005), an organic network (Chun et al, 2013), and a microporous polymer (Xie et al, 2013) have been applied for the CO 2 fixation reaction. However, they mostly require elevated temperatures and/or pressures and/or separation and purification steps.…”

Section: Scope Of This Reviewmentioning

confidence: 99%

Metalâ€“Organic Framework-Based Catalysts: Chemical Fixation of CO2 with Epoxides Leading to Cyclic Organic Carbonates

et al. 2015

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As a C1 feedstock, CO 2 has the potential to be uniquely highly economical in both a chemical and a financial sense. In particular, the highly atom-economical acid-catalyzed cycloaddition of CO 2 to epoxides to yield cyclic organic carbonates (OCs), a functionality having many important industrial applications, is an attractive reaction for the utilization of CO 2 as a chemical feedstock. Metal-organic frameworks (MOFs) are promising candidates in catalysis as they are a class of crystalline, porous, and functional materials with remarkable properties including great surface area, high stability, open channels, and permanent porosity. MOFs structure tunability and their affinity for CO 2 , makes them great catalysts for the formation of OCs using CO 2 and epoxides. In this review, we examine MOF-based catalytic materials for the cycloaddition of carbon dioxide to epoxides. Catalysts are grouped based on the location of catalytic sites, i.e., at the struts, nodes, defect sites, or some combination thereof. Additionally, important features of each catalyst system are critically discussed.

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“…ZIFs often possess unique properties of the microporosity, crystallinity, high specific surface areas, and high chemical and thermal stability, compared with other types of metal‐organic frameworks . Recently, ZIFs has attracted great attention in diverse applications, including liquid adsorption,, catalysis, and chemical analysis ,. It is reported that ZIFs can be used as adsorbents to absorb contaminants in water, such as dyes,, heavy metals salts,, and so on.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of novel ZIF‐67 Composite Microspheres for Effective Adsorption and Solid‐phase Extraction of Dyes from Water

Dai

Xiao

et al. 2018

ChemistrySelect

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ZIFs type metal-organic frameworks have been found to rapidly remove organic contaminants from water by adsorption. But ZIFs crystals are not suitable to be directly used as stationary phases of solid-phase extraction (SPE) process, because of the non-spherical morphology. This study reports a novel composite adsorbent, ZIF-67 composite microspheres (ZIF-67 CMs), synthesized via in-situ growing ZIF-67 nanoparticles (ZIF-67 NPs) on the outer surface of resin microspheres (RMs). The assynthesized ZIF-67 CMs were characterized by SEM, XRD, FTIR, BET and TGA experiments, and the removal performance of the ZIF-67 CMs to anion dyes were investigated. It was found that the ZIF-67 CMs showing microsphere morphology were successfully assembled by growing ZIF-67 NPs on RMs and exhibited favorable performance to rapidly adsorptive remove two kinds of anion dyes (Brilliant Blue G and Congo red) from water. The removal rates of the ZIF-67 CMs to a 100 mg L À1 dye solution reached 95.9% and 99.1% in a 1 h and 5 h static adsorption, respectively. The ZIF-67 CMs showing rapid adsorption performance were further studied as stationary phases in SPE procedures for decolorizing dye solutions. The ZIF-67 CMs can efficiently remove more than 99% of dyes at a flow rate of 1.0 mL min À1 in a 5 min operation. The excellent SPE performance of ZIF-67 CMs indicates the potential applications for efficiently concentrating or purifying liquid mixtures by using ZIF-67 CMs or other ZIFs composite microspheres.[a] J.

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Zeolitic imidazolate framework-68 as an efficient heterogeneous catalyst for chemical fixation of carbon dioxide

Cited by 106 publications

References 34 publications

Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO₂ Cycloaddition under Mild and Cocatalyst‐Free Conditions

Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO₂ Cycloaddition under Mild and Cocatalyst‐Free Conditions

Metalâ€“Organic Framework-Based Catalysts: Chemical Fixation of CO2 with Epoxides Leading to Cyclic Organic Carbonates

Fabrication of novel ZIF‐67 Composite Microspheres for Effective Adsorption and Solid‐phase Extraction of Dyes from Water

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Zeolitic imidazolate framework-68 as an efficient heterogeneous catalyst for chemical fixation of carbon dioxide

Cited by 106 publications

References 34 publications

Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO2 Cycloaddition under Mild and Cocatalyst‐Free Conditions

Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO2 Cycloaddition under Mild and Cocatalyst‐Free Conditions

Metalâ€“Organic Framework-Based Catalysts: Chemical Fixation of CO2 with Epoxides Leading to Cyclic Organic Carbonates

Fabrication of novel ZIF‐67 Composite Microspheres for Effective Adsorption and Solid‐phase Extraction of Dyes from Water

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Product

Resources

About

Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO₂ Cycloaddition under Mild and Cocatalyst‐Free Conditions

Rational Construction of an Exceptionally Stable MOF Catalyst with Metal‐Adeninate Vertices toward CO₂ Cycloaddition under Mild and Cocatalyst‐Free Conditions