One-Step Encapsulation of TBAB in ZIF-8 for CO₂ Fixation: Revealing the Synergistic Mechanism between TBAB and ZIF-8

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(14), P. 11101 - 11112

Published: July 10, 2024

Language: Английский

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Noncrystalline Zeolitic Imidazolate Frameworks Tethered with Ionic Liquids as Catalysts for CO₂ Conversion into Cyclic Carbonates

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(8), P. 10277 - 10284

Published: Feb. 16, 2024

Noncrystalline zeolitic imidazolate frameworks (ZIFs) tethered with ionic liquids (ILs) were successfully employed as catalysts for mild CO2 conversion into cyclic carbonates the first time. Notably, noncrystalline ZIFs exhibit outstanding catalytic performance in terms of activity, stability, and substrate suitability. Z3 was obtained through simultaneous incorporation a boronic acid group ILs its ZIF framework exhibited superior activity. A reaction mechanism propylene oxide–CO2 cycloaddition has been proposed, which integrates experimental findings density functional theory calculations. The results indicate that zinc, ILs, play crucial roles achieving high Zinc are identified key contributors to epoxide activation ring opening, while plays role stabilizing turnover frequency-determining transition states. simplicity this synthesis approach, combined versatility products, facilitates practical efficient epoxides carbonates.

Language: Английский

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Prediction of ionic liquid solubilities in supercritical CO2 + co-solvent systems using Peng–Robinson equation of state with accurate critical temperature

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 398, P. 124324 - 124324

Published: Feb. 25, 2024

Supercritical fluid deposition (SCFD) using supercritical carbon dioxide (CO2) to impregnate substrates with ionic liquids (ILs) has attracted considerable attention for the preparation of porous-supported ILs. Because ILs are generally insoluble in pure CO2, it is essential estimate solubilities CO2 + co-solvent systems developing SCFD process. In this study, a methodology was developed predict solubility co-solvents corresponding binary phase-equilibrium data. For prediction, interaction parameters Peng–Robinson equation state (PR-EoS) were determined correlations each system (i.e., IL co-solvent, and co-solvent). The predictive model PR-EoS, which included re-determined critical temperature as component parameter ILs, could reproduce effects temperature, pressure, concentration on phase without any fitting ternary systems. average absolute relative deviations based logarithmic scale predictions <23 %, indicating that acceptable describing system.

Language: Английский

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Conversion of CO2 with epoxides to cyclic carbonates catalyzed by amino acid ionic liquids at room temperature

Journal of CO2 Utilization, Journal Year: 2021, Volume and Issue: 56, P. 101840 - 101840

Published: Dec. 12, 2021

Language: Английский

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One-Pot Multiple-Step Integration Strategy for Efficient Fixation of CO₂ into Chain Carbonates by Azolide Anions Poly(ionic liquid)s

ACS Sustainable Chemistry & Engineering, Journal Year: 2021, Volume and Issue: 9(20), P. 7074 - 7085

Published: May 12, 2021

The multiple-step transformation of CO2 greatly enriches the diversity and value products provides more possibilities for sustainable development green chemistry. However, it puts forward stricter requirements versatility catalysts. A series basic porous ionic polymers incorporating azolide anions (BA-PILs) were facilely synthesized via radical polymerization followed by a successive ion-exchange strategy. one-pot integration strategy coupling cycloaddition transesterification explored to synthesize chain carbonates without separation intermediate products. High catalytic activity, stable recyclability, carbonate compatibility achieved in absence any cocatalyst. Combined with catalysts' characterization, situ IR analysis, density functional theory (DFT) calculation BA-PILs rationally explained dual roles synthesis. construction as versatile platform an original idea efficient insertion into carbonates.

Language: Английский

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Porphyrin-based metal- and covalent-organic frameworks as heterogeneous nanosized photocatalysts in organic synthesis

Journal of Materials Chemistry C, Journal Year: 2021, Volume and Issue: 9(47), P. 16885 - 16910

Published: Jan. 1, 2021

The porphyrin-containing metal- and covalent-organic frameworks, respectively MOFs COFs, are quite versatile porous nanomaterials for hetero-photocatalysis.

Language: Английский

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Quaternization-induced catalyst-free synthesis of viologen-linked ionic polyacetylenes towards heterogeneous catalytic CO₂fixation

Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(10), P. 5540 - 5549

Published: Jan. 1, 2022

One-pot synthesis of viologen-linked ionic polyacetylenes by catalyst-free quaternization-induced in situ polymerization for efficient heterogeneous catalytic conversion atmospheric CO 2 .

Language: Английский

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High-yield synthesis of HMF from glucose and fructose by selective catalysis with water-tolerant rare earth metal triflates assisted by choline chloride

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(4), P. 1679 - 1689

Published: Jan. 1, 2023

Hydroxymethylfurfural (HMF) derived from sugars through an environmentally friendly process catalysed by metal triflate/choline chloride system is presented in this study.

Language: Английский

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“All-in-one” carbon dots-based catalyst for converting CO2 to cyclic carbonates

Carbon, Journal Year: 2023, Volume and Issue: 211, P. 118118 - 118118

Published: May 15, 2023

Language: Английский

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Dyes as efficient and reusable organocatalysts for the synthesis of cyclic carbonates from epoxides and CO₂

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(23), P. 9744 - 9759

Published: Jan. 1, 2023

The functionalised RhB-EtOH-I dye was identified as an efficient and reusable organocatalyst for the conversion of CO 2 epoxides into cyclic carbonates under mild conditions.

Language: Английский

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