Engineered ionic liquids supported on activated carbon as a sustainable and selective catalyst for viable fixation of CO2 into valuable chemicals

Alla, Sarat Chandra; Prasad, Divya; Kusuma, Suman; Samal, Akshaya K.; Chaudhari, Nitin K.; Seo, Jeong Gil; Jadhav, Arvind H.

doi:10.1016/j.cej.2023.148239

Cited by 10 publications

(1 citation statement)

References 60 publications

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“…But remarkably, the CCU strategy was efficiently involved in the diminishing of the CO 2 concentration level in the atmosphere via the synthesis of fuels and value-added chemicals. , Until today, novel approaches have been reported for the synthesis of various chemicals using CO 2 as a C1 source. Among them, cycloaddition between CO 2 and epoxide to form the cyclic carbonate protocol is one of the 100% atom economy reactions . Cyclic carbonates have a wide range of applications in many sectors. , Earlier, efficient heterogeneous catalysts such as zeolites, silica, graphene oxide, metal or mixed metal oxides, , ionic liquids, porous organic polymers, metal–organic frameworks, covalent–organic frameworks (COFs), and so on reported for the same.…”

Section: Introductionmentioning

confidence: 99%

Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO₂ into Value-Added Products at Atmospheric Pressure

Srinivasappa,

Hamzad,

Manjunath

et al. 2024

ACS Sustainable Chem. Eng.

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Recently, covalent−organic frameworks (COFs) have emerged as a new catalytic strategy for the fixation of C1 feedstock of CO 2 into heterocyclic compounds, and these compounds can be utilized for production of fine chemicals. In this work, we designed a manganese-anchored COF material (Mn@COF) via a simple, one-pot Schiff base condensation process. The synthesized material of Mn@COF was successfully examined as a promising catalyst for styrene carbonate (SC) synthesis under temperate reaction conditions. The Mn@COF catalyst's inherent properties are well described with the aid of various analytical and spectroscopic techniques, such as Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray (EDX), transmission electron microscopy (TEM), N 2 -sorption, X-ray photoelectron spectroscopy (XPS), Py-adsorption, and CO 2 temperature-programmed desorption (TPD) analysis. The experimental XRD analysis results are in good agreement with the computational structural simulation XRD outcomes and evidently disclose that the Mn metal is successfully anchored to the nitrogen atom in the designed framework based on the observed interlayer and intermolecular distances. These results effectively increase the diffusion of initial reagents and the rate of the reaction in the reaction medium. The bare COF material showed less catalytic activity at atmospheric pressure, but the manganese-anchored COF catalyst (Mn@COF) exhibited superior catalytic activity toward the desired styrene carbonate product under mild reaction conditions. The effect of different reaction parameters in detail is investigated, and additionally, the substrate scope study is examined by using various epoxides under optimized reaction conditions over the Mn@COF catalyst. The promising active sites of triazine N and covalently anchored Mn synergistically enhanced the catalytic activity in the cycloaddition reaction between CO 2 and styrene oxide. Interestingly, we proposed a plausible styrene carbonate synthesis mechanism with the assistance of characterization and experimental outputs. Remarkably, with its stable physicochemical and structural properties, the Mn@COF catalyst was recycled for six successive cycles with stable catalytic activity under temperate optimized reaction conditions. This idea emphasizes the selective synthesis of styrene carbonate by CO 2 fixation in the presence of a sustainable catalyst under mild reaction conditions.

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Section: Introductionmentioning

confidence: 99%

Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO₂ into Value-Added Products at Atmospheric Pressure

Srinivasappa,

Hamzad,

Manjunath

et al. 2024

ACS Sustainable Chem. Eng.

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Deep Eutectic Solvent Engineered Dendritic Fibrous Nano‐Silica Catalyst for Sustainable Fixation of CO₂ Into Value‐Added Product at Atmospheric Condition

Alla,

Sudhakaran,

Bembalge

et al. 2024

Applied Organom Chemis

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Developing efficient carbon dioxide (CO2) capture and conversion methods is vital for climate change mitigation. Cycloaddition of CO2 with epoxides to form cyclic carbonates is a promising utilization method. In this study, a deep eutectic solvent‐modified dendritic fibrous nano‐silica (DES@DFNS) catalyst was synthesized by functionalizing DFNS with DES. This catalyst was used for the cycloaddition of CO2 with styrene oxide to produce styrene carbonate. The material's morphology and properties were characterized using various analytical techniques, revealing a high surface area, good porosity, and significant concentrations of Lewis acidic and basic sites. Rietveld refinement analysis provided insights into its phase composition, crystallite size, microstrain, stress, and other microstructural properties. Despite a lower surface area, DES@DFNS demonstrated superior catalytic activity. The interaction between DES and DFNS showed that DES was physically adsorbed onto the DFNS surface, contributing to its enhanced performance. Factors such as smaller crystallite size, higher microstrain, increased dislocation density, and improved elastic properties provided more active sites and greater mechanical stability, boosting overall efficiency and durability. The DES@DFNS catalyst achieved 99% conversion of styrene oxide with 96% selectivity and 95% yield of styrene carbonate at 120 °C for 10 h under solvent‐free, atmospheric conditions. The synergistic effect of Lewis acidic and basic sites on DES@DFNS supported catalytic activity under moderate conditions. Additionally, the catalyst demonstrated reusability, maintaining performance for up to six cycles without significant loss of activity, making it a promising candidate for sustainable CO2 fixation and valorization processes.

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Enhanced electrocatalytic CO2 reduction into formate: Unleashing the effect of engineered bimetallic oxides supported on activated carbon

Manjunath,

Singh,

Srinivasappa

et al. 2025

Applied Surface Science

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Engineered ionic liquids supported on activated carbon as a sustainable and selective catalyst for viable fixation of CO2 into valuable chemicals

Cited by 10 publications

References 60 publications

Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO₂ into Value-Added Products at Atmospheric Pressure

Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO₂ into Value-Added Products at Atmospheric Pressure

Deep Eutectic Solvent Engineered Dendritic Fibrous Nano‐Silica Catalyst for Sustainable Fixation of CO₂ Into Value‐Added Product at Atmospheric Condition

Enhanced electrocatalytic CO2 reduction into formate: Unleashing the effect of engineered bimetallic oxides supported on activated carbon

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Engineered ionic liquids supported on activated carbon as a sustainable and selective catalyst for viable fixation of CO2 into valuable chemicals

Cited by 10 publications

References 60 publications

Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO2 into Value-Added Products at Atmospheric Pressure

Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO2 into Value-Added Products at Atmospheric Pressure

Deep Eutectic Solvent Engineered Dendritic Fibrous Nano‐Silica Catalyst for Sustainable Fixation of CO2 Into Value‐Added Product at Atmospheric Condition

Enhanced electrocatalytic CO2 reduction into formate: Unleashing the effect of engineered bimetallic oxides supported on activated carbon

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Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO₂ into Value-Added Products at Atmospheric Pressure

Harnessing the Engineered 2D Triazine-Based Metal-Anchored Covalent–Organic Framework as a Catalyst for Selective Conversion of CO₂ into Value-Added Products at Atmospheric Pressure

Deep Eutectic Solvent Engineered Dendritic Fibrous Nano‐Silica Catalyst for Sustainable Fixation of CO₂ Into Value‐Added Product at Atmospheric Condition