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Review
Biochemistry & Molecular Biology
Ruina Zhang et al.
Summary: Carbon capture and storage (CCS) and carbon capture and utilization (CCU) are two strategies to reduce CO2 concentration in the atmosphere emitted from burning of fossil fuels. Ionic liquids (ILs) possess unique properties and can be used as solvents and catalysts for CO2 capture and conversion. This critical review focuses on IL-based catalysts for converting CO2 and o-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones. Different catalytic mechanisms, including amino preferential activation, CO2 preferential activation, and simultaneous amino and CO2 activation, are systematically investigated. Future directions and prospects for CO2 conversion using IL-based catalysts are outlined. This review provides an overall understanding of the synthesis of quinazoline-2,4(1H,3H)-diones from CO2 and o-aminobenzonitriles by IL-based catalysts and opens doors for developing novel IL-based catalysts for other acid gas conversions.
Review
Engineering, Environmental
Yisha Xu et al.
Summary: This paper presents the application of ionic liquids (ILs) in carbon capture, utilization, and separation (CCUS), including functional deep eutectic solvents (DESs) based on ILs and other mixtures with functional CO2-philic groups. The research progress in the past five years on functional DESs and mixtures is summarized, and the absorption mechanisms of single or multiple carbamate and carbonate are discussed. Finally, future directions and prospects for IL-based functional DESs and mixtures in CCUS are discussed.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ishfaq Ahmad Rather et al.
Summary: Here, we report an efficient and green method for preparing indicator dyes, fluorescein and phenolphthalein, using a reusable deep eutectic solvent (DES) as both a catalyst and solvent. This method, which can be recycled for multiple runs without a significant decrease in yield, is the first of its kind for dye synthesis using DES.
Article
Engineering, Environmental
Lingling Peng et al.
Summary: CO removal is an important topic, but the CO capture performance of reported absorbents is still unsatisfactory. In this study, a series of novel ionic liquids were developed for effective CO absorption and separation, showing excellent CO capture performance and reversible regeneration. The strategy of multi-copper sites provides important guidance for the design of solvents for CO selective separation and storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Huiyu Zhao et al.
Article
Chemistry, Multidisciplinary
Ze Wang et al.
Summary: Deep eutectic solvents (DESs) formed by bio-phenol-derived superbase ionic liquids (ILs) and ethylene glycol (EG) exhibit a high CO2 capacity, and CO2 reacts with EG rather than phenolic anions, possibly through an acid-base reaction followed by the formation of carbonate species.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Sara Azmi et al.
Summary: This paper proposes a new approach to the DES application of choline chloride-urea for electrochemical capacitors (ECs), which demonstrates excellent electrochemical stability and high specific capacitance. The method allows for the construction of ECs in ambient conditions, avoiding the need for glove-box, and shows good long-term stability and corrosion resistance.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yinglin Zhong et al.
Summary: The cellulose solvent based on choline hydroxide/urea deep eutectic solvent (DES) has promising solubility for cellulose, high tolerance to water, and wide temperature range. It can be used as a green solvent platform for preparing regenerated cellulose materials and conducting cellulose chemistry experiments.
Review
Chemistry, Multidisciplinary
Ziwen Yuan et al.
Summary: The increasing discharge of metal-associated waste not only causes concerns on the environment and human health, but also accelerates the depletion of natural metal resources. Deep eutectic solvents (DESs) have emerged as an interesting alternative to ionic liquids (ILs) in the field of metal separation and recovery due to their high biodegradability, low toxicity, and ease of preparation.
Review
Engineering, Chemical
Fangfang Li et al.
Summary: This article discusses the recent developments and challenges of H2S removal technologies, with a focus on the unique advantages of ILs and DESs. The analysis of theoretical studies and industrial applications provides a comprehensive understanding of the utilization of ILs and DESs in the recovery of sulfur and hydrogen, as well as the synthesis of value-added chemicals.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Thermodynamics
Olga Kazarina et al.
Summary: Two new deep eutectic solvents composed of urea and salts from the choline family were prepared and found to have high absorption capacities for NH3. The Henry's law constants for NH3 demonstrated a positive correlation with the properties of DES including molar volume, free volume, and the number of CH2CH2OH substituents in a quaternary ammonium salt cation. The gas capture process in the studied DESs was favored by the interactions between NH3 molecules and hydroxyalkyl fragments, possibly through H-bonding.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2022)
Article
Chemistry, Multidisciplinary
Chen Fan et al.
Summary: This study investigates the viscosity of different types of DES through quantum-chemistry calculations and molecular dynamics simulations, revealing that DES based on glycolic acid has lower viscosity and higher activation energy values. Additionally, a strong charge transfer complex was found between glycolic acid and ammonium salt, suggesting its significant role in the differences in fluidity of the studied mixtures.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Huan Zhang et al.
Summary: Ionic liquids (ILs) and deep eutectic solvents (DESs) have emerged as alternatives to conventional solvents, and despite their different interaction types, they can be considered as two sides of the same coin. In this study, a transition from 1-ethyl-3-methylimidazolium chloride (EMIMCl) to EMIMCl·nAcOH-based DESs was promoted by adding stoichiometric amounts of acetic acid (AcOH) to EMIMCl. The transition was confirmed through various spectroscopic and simulation techniques. The resulting DESs exhibited different solvent properties, and the aqueous dilutions deviated from ideality due to the formation of hydrogen bonds between water molecules and the anion.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Qingyang Lin et al.
Summary: Carbon dioxide is the primary greenhouse gas contributing to anthropogenic climate change. Carbon capture, utilization, and storage technology is a sustainable approach to reduce CO2 emissions.
Article
Engineering, Environmental
Ping Zhang et al.
Summary: This study reports the selective membrane separation of SO2 using deep eutectic solvents (DES), resulting in gel membranes with high permeability and selectivity for SO2. The facilitated transport mechanism of SO2 was characterized by FTIR and NMR spectroscopy, showing significantly enhanced permeability under humid conditions. Overall, this work offers an alternative strategy for designing novel DES-based membrane materials for flue gas desulfurization.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Norafiqah Ismail et al.
Summary: In this study, a new family of non-ionic deep eutectic solvents (NIDES) is proposed for membrane preparation, and high-performance PVDF membranes are efficiently prepared by dissolving PVDF polymer.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Md Sajjadur Rahman et al.
Summary: This study investigates the mechanism of water in the formation of deep eutectic solvents using experimental and computational techniques. Quantum chemical and radial distribution function calculations successfully reveal the interactions and contributions among the components. Hydrogen bonds play a crucial role in the formation of water-based deep eutectic solvents. These solvents exhibit higher solubilities and show potential applications in biological systems.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Biochemistry & Molecular Biology
Dorota Manka et al.
Summary: In recent years, there has been a focus in the chemical industry on designing or modifying chemical processes to meet the requirements of proecological sustainable development and green chemistry principles. The synthesis of cyclic carbonates from CO2 and epoxides is a clear example of this trend, offering improvements over existing methods and using renewable carbon dioxide as a raw material. However, the low reactivity of CO2 necessitates the use of catalysts, with recent interest in deep eutectic solvents as potential cheap and biodegradable catalysts for this process.
Article
Chemistry, Applied
Jiangping Cao et al.
Summary: A water-based deep eutectic solvent was synthesized and applied for the extraction of parabens in edible oil, followed by their determination using high performance liquid chromatography. The developed method showed satisfactory linearity, low detection limits, good precision, and excellent recoveries. It offers a simple, cost-effective, and sensitive approach for the separation of hydrophobic compounds.
Review
Chemistry, Multidisciplinary
Idrees B. Qader et al.
Summary: The field of Ionic liquids (ILs) and deep eutectic solvents (DESs) is continuously expanding due to their unique properties and tunability, finding applications in various areas of modern science. In pharmaceutical sciences, ILs and DESs can be used for drug delivery, but practical use is still pending due to the lack of long-term toxicity data and safety evaluations.
PHARMACEUTICAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Tingting Chen et al.
Summary: A novel basic anion-functionalized ionic liquid was synthesized for efficient CO2 capture and catalytic conversion. The results showed that the ionic liquid had high CO2 absorption capacity and excellent catalytic performance, allowing for the conversion of CO2 into valuable chemicals.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Analytical
Muhammad Farooque Lanjwani et al.
Summary: Deep eutectic solvents (DESs), as green solvents, have been developed as alternatives to conventional solvents for extracting organic and inorganic species from food and water samples. DESs have distinctive properties, easy preparation, and wide availability of components, making them widely used in scientific and everyday life. In the field of analytical chemistry, DESs are commonly used for extraction and determination of organic and inorganic compounds from different samples. Recent research has focused on using DESs as extractants for separating and preconcentrating low-level pollutants.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Review
Biochemistry & Molecular Biology
Ruina Zhang et al.
Summary: This paper summarizes the development of functionalized ionic liquids (ILs) for CO2 capture in the past decade, including cation-functionalized ILs, anion-functionalized ILs, and cation-anion dual-functionalized ILs. It also provides an overview of the classification, structures, and synthesis of functionalized ILs, and discusses future directions and prospects for their applications in carbon capture, utilization, and storage (CCUS). This review is of great significance for researchers to gain a comprehensive understanding of CO2-philic ILs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Chemistry, Multidisciplinary
Changsoo Kim et al.
Summary: This paper reviews various carbon dioxide utilization (CDU) technologies in terms of efficiency, maturity, and cost. The technologies are sorted according to their application status and CO2 utilization capacity. The current status and potential for long-term usage of each technology are discussed, and insights are provided on integrating different methods to achieve a net-zero environment.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Multidisciplinary
Haina Sang et al.
Summary: Reducing greenhouse gas emissions is crucial for mitigating global warming. This study focused on developing efficient and reversible carbon dioxide (CO2) absorbents using ionic liquids (ILs) synthesized with 1,5-diazabicyclo [4.3.0]-non-5-ene (DBN) as the cation and different pKa anions such as 1,2,4-triaz (Triz), 2-methylimidazole (2-MeIm), and 2-Oxazolidone (Oxa). The results showed that the higher pKa of the anion, the better the CO2 absorption performance. The DBN-based deep eutectic solvents (DESs) exhibited excellent recyclability.
JOURNAL OF CO2 UTILIZATION
(2022)
Review
Engineering, Environmental
Rashid Abro et al.
Summary: In the coming decades, the delivery of clean energy and its applications will be of utmost importance. Elimination of toxic emissions, particularly sulfur compounds, is essential for the survival of our planet. The use of extractive desulfurization (EDS) process with deep eutectic solvents (DESs) is a promising alternative to conventional hydrodesulfurization (HDS) technique. This review discusses the advantages and factors of EDS using DESs, as well as potential problems and flaws. DESs are recommended as preferable solvents for cleaner fuel oil production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Duan-Jian Tao et al.
Summary: Copper-based ternary deep eutectic solvents prepared by mixing imidazolium hydrochloride with CuCl and ZnCl2 exhibit high CO absorption capacity at high temperatures, surpassing other absorbents. These solvents can facilitate the reactive absorption of CO, allowing for effortless aminocarbonylation reactions at ambient pressure and yielding benzamides in 70-97% yields. This discovery offers a new approach to designing advanced solvents for efficient CO capture at high temperatures.
Review
Chemistry, Multidisciplinary
Benworth B. Hansen et al.
Summary: Deep eutectic solvents (DESs) exhibit significant depressions in melting points and tunable physicochemical properties, but there is still a lack of predictive understanding of their microscopic mechanisms and structure-property relationships. Research on complex hydrogen bonding is crucial for a deeper understanding and development of fundamental frameworks for DESs.
Article
Engineering, Chemical
Mingzhen Shi et al.
Summary: This study developed a series of task-specific deep eutectic solvents for the efficient and selective separation of H2S and CO2, with promising results indicating their potential for use in natural gas sweetening processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Ying Liu et al.
Summary: A novel imidazolium-based deep eutectic solvent was synthesized and used for the efficient cycloaddition of CO2 with styrene oxide, exhibiting excellent catalytic activity at room temperature and low pressure without the need for cocatalysts, metals, or solvents. Through detailed study, a plausible reaction mechanism involving the multisite synergistic activation of the epoxide by hydrogen bonds was proposed, and the cycloaddition reaction was found to follow a pseudo-first-order reaction kinetic model.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Physical
Guokai Cui et al.
Summary: Deep eutectic solvents are efficient gas absorbents, with AChBr+Gly showing higher absorption capacity for SO2 compared to ChBr+Gly. The absorption mechanisms differ between the two solvents, involving physisorption, quasichemisorption, and chemisorption for AChBr+Gly, while only physisorption and quasi-chemisorption are observed for ChBr+Gly.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Guokai Cui et al.
Summary: A series of active cuprous-based ternary deep eutectic solvents were designed and prepared for capturing carbon monoxide in hydrogen gas, and the efficiency and mechanism of CO capture at different molar ratios were analyzed. The presence of Cu(I) was found to be crucial for efficient CO capture by these DESs, and Delta H was identified as the main driving force for CO capture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Ran Ping et al.
Summary: The novel aminophenol-based protic ionic liquids (APILs) were synthesized and utilized as catalysts for converting 2-aminobenzonitriles and CO2 into quinazoline-2,4(1H,3H)-diones. The optimal catalyst exhibited excellent product yields under mild conditions and could be recycled up to five times. The activation behaviors and synergistic catalytic mechanism of the catalyst were also studied.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Review
Chemistry, Physical
Kranthi Kumar Maniam et al.
Summary: This review explores the potential uses of ionic liquids in renewable energy, focusing on CO2 electroreduction and organic molecule electrosynthesis via CO2 transformation. Recent advances and future prospects in the field are briefly summarized, along with discussions on the application of deep eutectic solvents in CO2 electroreduction. The critical techno-commercial issues related to the use of ILs and DESs in various processes are also reviewed.
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)
Review
Chemistry, Physical
Yanrong Liu et al.
Summary: This study comprehensively collected and summarized the solubilities of CO2 in physical- and chemical-based ILs/DESs, as well as the COSMO-RS models predicting these properties. Chemical-based ILs/DESs were found to be more effective for CO2 capture, especially those with functionalized cations and anions, and superbase DESs.
GREEN ENERGY & ENVIRONMENT
(2021)
Article
Chemistry, Physical
Zhenglin Hu et al.
CHEMISTRY OF MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Fusheng Liu et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Energy & Fuels
Minjie Gao et al.
Article
Chemistry, Multidisciplinary
Yu Chen et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Review
Chemistry, Multidisciplinary
Wanlin Gao et al.
CHEMICAL SOCIETY REVIEWS
(2020)
Article
Chemistry, Multidisciplinary
Dezhong Yang et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Multidisciplinary
Fusheng Liu et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Multidisciplinary
Guokai Cui et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Physical
Dezhong Yang et al.
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Chemistry, Multidisciplinary
Ge Cui et al.
CHEMICAL COMMUNICATIONS
(2019)
Review
Chemistry, Multidisciplinary
Yu Chen et al.
Article
Chemistry, Multidisciplinary
Dinis O. Abranches et al.
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Iman Dindarloo Inaloo et al.
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Physical
Idowu Adeyemi et al.
JOURNAL OF MOLECULAR LIQUIDS
(2018)
Article
Chemistry, Multidisciplinary
Guiling Shi et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Chemistry, Physical
Shashi Kant Shukla et al.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Martin Hulla et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2017)
Article
Chemistry, Multidisciplinary
Xiaoyan Luo et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2014)
Article
Chemistry, Multidisciplinary
Yanfei Zhao et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2014)
Article
Chemistry, Multidisciplinary
Wenjing Lu et al.
