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Article
Chemistry, Inorganic & Nuclear
Haifang Mao et al.
Summary: A Ru(III) Schiff base complex catalyst (SalRu) was constructed using a derivative of lignin degradation to efficiently convert CO2 to cyclic carbonates. The SalRu catalyst showed remarkable conversion even at atmospheric pressure of CO2 without co-catalyst, reaching 94% conversion and 99% selectivity at 120 degrees C and 2 MPa CO2 after 8 hours. This study provided direct evidence for the mechanism proposing epoxide activation, ring opening, CO2 insertion, and cyclic carbonate formation, and has important theoretical significance for the utilization of environmental pollutants and energy.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Energy & Fuels
Fereshteh Norouzi et al.
Summary: A series of pyridinium-based acidic-ionic liquids (PyAILs) were synthesized as dual-functional ILs and used as catalysts for the conversion of CO2 into carbonates. Various factors affecting the reaction were investigated, and a conceivable reaction mechanism was proposed.
Article
Chemistry, Physical
Yunlong Yang et al.
Summary: Cellulosic poly(ionic liquid)s ([Cellmim][Br]) were successfully synthesized via the transesterification reaction of cellulose with 1-(2-methoxyacetyl)-3-methyl imidazole bromide IL ([Mmim][Br]). The resulting POF-[Cellmim][Br] materials functioned as efficient catalysts for cycloaddition reactions of epoxides and carbon dioxide. The work provided insights into the cooperative effects of porous properties and nucleophilic anions on the reaction.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Ting Yan et al.
Summary: This paper reviews the methods and catalysts for synthesizing cyclic carbonates using CO2 as the feedstock, and analyzes the mechanisms of CO2 activation and the suitability of different catalysts. This review provides timely insights into current research progress and offers valuable inspirations for future investigations on CO2-based cyclic carbonate synthesis.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Physical
Tian Sheng et al.
Summary: An efficient fixation of CO2 into cyclic carbonate catalyzed by imidazole-based deep eutectic solvents (DESs) was demonstrated. These DESs, composed of Choline Bromide (ChBr) and Imidazole (Im) derivatives, successfully converted various epoxides into cyclic carbonates under solvent-and additive-free conditions. Mechanistic studies revealed that the high catalytic activity of DESs is attributed to the synergistic catalysis between the HBAs and HBDs, with the hydroxyl group being the most active among the characteristic functional groups in the HBAs.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Cheng Li et al.
Summary: In this work, a mechanochemical method was used to fabricate mesoporous SiO2-supported organocatalysts with alkylol-amine cooperative sites. The catalysts showed medium to remarkable activity for the cycloaddition of CO2 and epoxides under halogen- and solvent-free conditions. The activity could be adjusted by controlling the pore size of SiO2 and the structure of organocatalysts. The SiO2-supported organocatalysts also exhibited easy recovery and recycling. This work not only provides an efficient method for constructing organic-inorganic hybrid materials, but also offers a halogen-free catalyst for CO2 conversion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Ruijia Wang et al.
Summary: Converting CO2 with various epoxides to cyclic carbonates is important, but catalysts for this conversion often require complicated fabrication or unsustainable sources. To address this issue, biomass-based all-in-one carbon dots as nano-organocatalysts were prepared, achieving high catalytic performance and recyclability. The carbon dots successfully converted CO2 and various epoxides to cyclic carbonates with a yield of up to 99.5%, under mild conditions. Furthermore, the inherent luminescence of the carbon dots allowed for the direct conversion of the formed cyclic carbonates to afterglow polymer composites.
Article
Materials Science, Multidisciplinary
Payal Tyagi et al.
Summary: Fossil fuels have contributed to prosperity and welfare, but their CO2 emissions have had a negative impact on global temperature. With limited fossil fuel resources, finding alternative carbon sources for a sustainable economy is necessary. The conversion of CO2 into cyclic carbonate through catalysts is discussed, with a focus on metal-catalyzed systems.
Article
Engineering, Chemical
Ran Ping et al.
Summary: In this study, metalloporphyrin and triazine integrated nitrogen-rich frameworks were constructed and investigated for their CO2 adsorption and catalytic conversion properties. Zn c PPTF15 was found to possess dual functions of CO2 adsorption and conversion, with high catalytic activity and recyclability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shengliang Zhai et al.
Summary: In this work, heteronuclear dual single atom catalysts (SACs) composed of Pd and 3d transition metals supported by covalent triazine frameworks (CTFs) were proposed. The optimized Pd1-Co1/CTF catalyst exhibited high conversion of captured CO2 into formate. The heteronuclear Pd and Co metal atoms acted as active sites for H2 activation and CO2 adsorption, respectively, showing enhanced activity for formate synthesis with synergistic effect.
Review
Chemistry, Physical
Stella A. Fors et al.
Summary: In the past few decades, most of the progress in CO2 reduction has been focused on the synthesis of C1 products, such as CO, formic acid, methanol, and methane. However, the syntheses of C2+ products from generally abundant C1 sources such as CO2, CO, and CH4 have traditionally been more challenging. Recent advances in organometallic chemistry and catalysis have provided effective methods for converting C1 sources to higher-energy C2+ products under mild conditions. Moreover, these advancements have enabled the use of various C1 sources for the generation of different C2+ products through C-C bond formation. This review systematically presents the recent advances in C1 to C2+ conversions under homogeneous catalysis.
Article
Chemistry, Multidisciplinary
Yuanyuan Cui et al.
Summary: Carbon dioxide (CO2) conversion into carbonates is achieved using phosphonium-based functional deep eutectic solvents (DESs) as catalysts, with 1-ethylamine-3-butylphosphine bromide-diethylene glycol ([P4,4,4,2NH2][Br]-DEG) DES catalyst achieving 96% propylene carbonate (PC) yield under mild conditions. The DES catalyst can be recovered and maintains its efficiency after five cycles. Additionally, in situ FT-IR and density functional theory (DFT) reveal a potential reaction mechanism involving synergistic catalysis between quaternary phosphine ionic liquids (ILs) and ethylene glycol (EG)/DEG.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Physical
Fereshteh Norouzi et al.
Summary: Ionic liquids are efficient catalysts with non-toxic, biodegradable, non-volatile, and low-cost properties for the synthesis of cyclic organic carbonates. The synthetic catalyst exhibited high conversion and selectivity under mild conditions without the need for co-catalyst, metal, or solvent. It could also be recycled multiple times before losing its catalytic activity.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Giammarco Meloni et al.
Molecular Catalysis
(2023)
Article
Engineering, Environmental
Kaixing Cai et al.
Summary: In this study, a series of porous ionomer polymers (PIPs) with special functions were successfully constructed for CO2 capture and conversion. By adjusting the structure and properties, as well as the cross-linked ratios, the CO2 adsorption capacity and catalytic performance of PIPs were greatly improved. The results show that these functionalized PIPs have great potential for applications in CO2 separation and conversion.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yu Chen et al.
Summary: A novel microreaction system catalyzed by ionic liquids (ILs) is proposed for the synthesis of propylene carbonate (PC) from CO2 and propylene oxide (PO). The reaction conditions were optimized, and the kinetics of the reaction were evaluated, providing new opportunities for CO2 utilization and achieving carbon neutrality through enhanced gas-liquid reactions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xu Liao et al.
Summary: Designing and preparing hypercrosslinked ionic polymers (HIPs) with high ionic density is a challenging task in materials science. In this study, a series of imidazolium-based HIPs with different ionic densities and porosities were synthesized through Friedel-Crafts alkylation. The obtained HIPs exhibited excellent catalytic activity for the conversion of CO2 with various epoxides into cyclic carbonates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Alexandra Velty et al.
Summary: For many years, capturing, storing or sequestering CO2 from emission sources has been an effective method for reducing atmospheric CO2. The chemical conversion of CO2 into valuable chemicals has gained much attention due to CO2's abundance and renewable nature. Catalysts, particularly zeolite and ordered mesoporous materials, play a critical role in the conversion of CO2. By studying the reactions involving these catalysts, this review aims to explore the potential opportunities for using them to convert CO2 into essential chemicals and fuels.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Engineering, Environmental
Chao Liu et al.
Summary: Pyridine-based ionic hyper-cross-linked polymers were synthesized and showed high CO2 capture capacity and excellent catalytic activity for the cycloaddition of CO2 to epoxides. The catalyst exhibited great structural stability and substrate universality, with the ability to be separated and reused multiple times without significant loss in performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ye Qu et al.
Summary: This study developed a simple method to prepare sustainable amino acid ionic liquids (AAILs) and achieved efficient CO2 utilization under room temperature and atmospheric pressure. The newly developed AAILs were able to catalyze the reaction between CO2 and propylene oxide without the need for additional solvent and cocatalyst, showing high yield and selectivity.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Engineering, Environmental
Rui Ge et al.
Summary: The matched anodic and cathodic electrolysis can potentially increase the energy efficiency and produce value-added products simultaneously, highlighting the importance of ordered mesoporous transport channels in accelerating catalytic kinetics.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yi Liu et al.
Summary: Solar energy is considered the cleanest, cheapest, and most sustainable energy source. By using Zn and N co-doped porous carbon nanosheets as catalysts and photothermal materials, the cycloaddition of CO2 can be driven efficiently with high yields. This approach offers recycling capability and exhibits high activity towards other epoxides.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoqing Yang et al.
Summary: In this study, a series of bio-based deep eutectic solvents (DESs) were synthesized for catalyzing the cycloaddition reaction of CO2 with epoxides. The AcChBr-LMA (2:1) DES, formed by acetylcholine bromide (AcChBr) and L-malic acid (LMA), showed the highest catalytic activity (up to 98% yield) and excellent recyclability under mild conditions. Mechanism studies revealed a synergistic catalytic effect between the hydrogen bond acceptor (HBA) and hydrogen bond donor (HBD).
JOURNAL OF CO2 UTILIZATION
(2022)
Review
Chemistry, Multidisciplinary
Raktim Sen et al.
Summary: The traditional economy based on carbon-intensive fuels and materials has led to a significant increase in anthropogenic CO2 emissions, directly linked to global warming. The methanol economy, with its core concept of chemically recycling CO2 to produce green methanol, offers a prime opportunity for achieving carbon neutrality. Homogeneous catalytic systems have recently emerged as a major research focus for synthesizing methanol from CO2 as a low-temperature alternative to commercial processes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Qing Yu et al.
Summary: In this study, a crosslinking strategy was successfully employed to enhance the porosity of IPOPs. The resulting IPOP1-XL exhibited a large specific surface area and abundant ionic sites, leading to a higher CO2 uptake capacity and improved CO2 chemical fixation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Bin-Hai Cheng et al.
Summary: The study proposes a facile method to prepare nitrogen and oxygen-rich porous biochar by pyrolysis of chitosan under CO2 atmosphere, and demonstrates the high performance of the obtained metal-free carbon material catalyst in cycloaddition of CO2 to epoxides. Doped nitrogen and oxygen show a synergistic effect for this addition reaction, and the catalytic efficiency can be enhanced through tuning the content of nitrogen and oxygen.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Weiping Liao et al.
Summary: Through structural reconstruction, the confinement of iodide ions in Mg-Beta zeolites was successfully achieved. It was found that Mg2+ ions were located in the zeolite framework, while I- ions were mainly confined via electrostatic interactions. The study also revealed the recoverable ability of zeolite-supported halide ions.
Review
Chemistry, Inorganic & Nuclear
Naoya Onishi et al.
Summary: This paper summarizes the catalysts used in methanol synthesis and dehydrogenation processes, and discusses the potential of these methods for reducing atmospheric CO2 concentration.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Engineering, Environmental
Satya Ranjan Jena et al.
Summary: Chromium(VI) contamination, especially from dichromate in wastewater, remains a serious concern due to uncontrolled effluent management in rapidly industrializing areas. Traditional techniques for capture and separation have limitations such as low capacity and poor reusability. New materials like MOFs are emerging to overcome these limitations, with a recent development of a highly cationic three-dimensional metal-organic coordination assembly showing efficiency, speed, robustness, and recyclability in dichromate removal.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Sebastian Saltarini et al.
Summary: This study involved the synthesis of a new iodide aluminum complex and its catalytic activity in the formation of cyclic carbonates, providing insights for the design of more active halide catalysts in the future.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Meng Cui et al.
Summary: The study presents the production of liquid fuel from CO2 hydrogenation by coupling homogeneous RuCl3 and heterogeneous Ru-0 catalysts at the lowest reported temperature (180 degrees C) and achieving the highest C5+ selectivity to date (71.1%). The synergy of homogeneous and heterogeneous catalysis is identified as the key factor for the outstanding performance.
Article
Chemistry, Applied
Zhenping Su et al.
Summary: Four metalloporphyrin-based metal organic gels (MOGs) and porous coordination polymers (PCPs) were synthesized via solvothermal method, showing good catalytic activities for the cycloaddition reactions of epoxide and CO2 under mild and solvent-free conditions using tetrabutylammonium bromide (TBAB) as co-catalyst.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Tongtong Wang et al.
Summary: The recyclable and magnetic nanocomposite catalyst IL/Fe3O4@HKUST-1, synthesized by grafting ionic liquid IL into magnetically functionalized metal-organic framework Fe3O4@HKUST-1, exhibits high activity, easy separation, and maintained high performance for several cycles. The synergistic effect of Lewis acid and base sites contributes to its greater reactivity compared to individual IL or HKUST-1.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Masoumeh Karimi Alavijeh et al.
Summary: A new 3D potassium coordination polymer and its sulfono-tricarboxylic ligand were successfully synthesized and characterized in this study. The catalytic activities of the ligand in the CO2 cycloaddition reaction were investigated, showing efficient performance possibly due to the synergetic effect among the functional groups.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Nanoscience & Nanotechnology
Lina Liu et al.
Summary: The synthesis of bifunctional polymers incorporating porphyrin-Zn as Lewis acid sites and Br- as nucleophiles for the cycloaddition of dilute CO2 with epoxides has been reported. Optimized bifunctional polymer shows high catalytic activity and can efficiently catalyze the reaction even under ambient conditions. This bifunctional polymer demonstrates great potential for industrial-scale production in the field of CO2 conversion.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Balaji Panchal et al.
Summary: The newly synthesized sulfonic acid-functionalized microporous ionic polymers (PIP) catalysts exhibit high catalytic performance and can be recycled multiple times. Experimental results show that this new catalyst performs well in the synthesis of ethanol, ethanol-to-diethyl carbonate, and ethanol-to-dimethyl carbonate, achieving yields of 85%, 94%, and 70% respectively.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Chemistry, Multidisciplinary
Haonan Lin et al.
Summary: Three new manganese-based metal-organic frameworks have been synthesized with modified structures for improved catalytic activity in the reaction of CO2 and epoxides towards cyclic carbonates. The structures of the Mn-MOFs are controlled by changing the anions of the manganese salts, and the catalytic activities are optimized under mild conditions.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Xiaoqing Yang et al.
Summary: A series of deep eutectic solvents (DESs) consisting of protic ionic liquids (PILs) and amines exhibit effective catalytic activity for the fixation of CO2 to cyclic carbonates, achieving high yields and stable catalytic activity. Mechanistic research reveals simultaneous activation of CO2 and epoxides through the synergistic catalysis of PILs and amines in these deep eutectic solvents.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Malee Sinchow et al.
Summary: New lanthanide coordination polymers were designed and synthesized for use as catalysts, with excellent catalytic performance in CO2 cycloaddition reactions. The frameworks exhibited multiple Lewis and Bronsted acidic and Lewis basic sites, leading to promising turnover numbers and frequencies with high conversion and selectivity. Ib and IIb also demonstrated robustness over multiple cycles of catalysis, showing potential as catalysts for other epoxides.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Cheng Li et al.
Summary: An efficient strategy for the conversion of CO2 into cyclic carbonates catalyzed by hydroxyl-functionalized protic ionic liquids (PILs) has been successfully developed, achieving high conversion rates without the need for solvents or additives under mild conditions. Mechanistic studies demonstrate that hydroxyl groups promote the activation of epoxide molecules, facilitating the conversion of CO2 into cyclic carbonates. The hydroxyl-functionalized PILs can be recycled, making this process a promising scheme for chemical CO2 conversion.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Shuang Yue et al.
Summary: In this study, a novel, efficient, experimentally simple, and environmentally friendly synthesis route was developed using hydroxy acid-functionalized ionic liquids as catalysts for the conversion of carbon dioxide and epoxides to cyclic carbonates under solvent and co-catalyst-free conditions. The catalysts showed outstanding catalytic activity, with the ability to be reused multiple times without significant loss.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Guojian Chen et al.
Summary: This study reported a new class of phenanthroline-based cationic radical porous hybrid polymers, which exhibited high catalytic efficiency in H2O2-mediated selective oxidation and CO2 conversion reactions. The materials showed promising catalytic performance due to their electron-accepting and redox abilities, and could be easily recovered and reused in heterogeneous catalytic systems.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Hui-Ying Tong et al.
Summary: A new strategy of introducing imidazolium into cationic calix[4]arene-based metal-organic cages (MOCs) to prepare soluble homogeneous catalysts has been developed. These soluble MOCs exhibit high activity and recyclability in the cycloaddition reaction of CO2 without the need for any co-catalysts, showing potential for designing highly efficient catalysts by combining the advantages of homogeneous and heterogeneous catalysis.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Chaokun Yang et al.
Summary: Polymerized bis-imidazolium based ionic liquid with solid-liquid transition behavior shows high activity and easy separability in CO2 cycloaddition reaction, making it a promising candidate for catalyzing the conversion and utilization of CO2.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Nanoscience & Nanotechnology
Hai Zhu et al.
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Engineering, Chemical
Jian Chen et al.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Engineering, Environmental
Degong Jia et al.
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Multidisciplinary
Guangcai Long et al.
JOURNAL OF CO2 UTILIZATION
(2020)
Article
Chemistry, Physical
Ying Liu et al.
MOLECULAR CATALYSIS
(2020)
Article
Chemistry, Multidisciplinary
Yuling Zhao et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Physical
Qiu-Jin Wu et al.
CATALYSIS SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Applied
Yan Zhang et al.
CHINESE JOURNAL OF CATALYSIS
(2020)
Article
Chemistry, Organic
Fei Chen et al.
JOURNAL OF ORGANIC CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Fusheng Liu et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Multidisciplinary
Jian Chen et al.
FRONTIERS IN CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Jian Chen et al.
Article
Chemistry, Physical
Wenguang Yu et al.
JOURNAL OF CATALYSIS
(2018)
Article
Chemistry, Physical
Yaqiang Xie et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Chemistry, Physical
Liangzheng Ji et al.
MOLECULAR CATALYSIS
(2018)
Article
Chemistry, Multidisciplinary
Pei Mao et al.
JOURNAL OF CO2 UTILIZATION
(2018)
Article
Chemistry, Physical
Ya Du et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2017)
Article
Chemistry, Physical
Jose A. Castro-Osma et al.
Article
Chemistry, Multidisciplinary
Xu Jiang et al.
JOURNAL OF CO2 UTILIZATION
(2016)
Article
Chemistry, Multidisciplinary
Rongchang Luo et al.
