Everything You Wanted to Know about Deep Eutectic Solvents but Were Afraid to Be Told

Annual Review of Chemical and Biomolecular Engineering, Journal Year: 2023, Volume and Issue: 14(1), P. 141 - 163

Published: March 8, 2023

Are deep eutectic solvents (DESs) a promising alternative to conventional solvents? Perhaps, but their development is hindered by plethora of misconceptions. These are carefully analyzed here, beginning with the very meaning DESs, which has strayed far beyond its original scope mixtures Lewis or Brønsted acids and bases. Instead, definition that grounded on thermodynamic principles distinguishes between encouraged, types precursors can be used prepare DESs reviewed. Landmark works surrounding sustainability, stability, toxicity, biodegradability these also discussed, revealing piling evidence numerous reported thus far, particularly those choline based, lack sufficient sustainability-related traits considered green solvents. Finally, emerging DES applications reviewed, emphasizing most remarkable feature: ability liquefy solid compound target property, allowing use as liquid solvent.

Language: Английский

---

Accurate Machine Learning for Predicting the Viscosities of Deep Eutectic Solvents

Journal of Chemical Theory and Computation, Journal Year: 2024, Volume and Issue: 20(9), P. 3911 - 3926

Published: Feb. 22, 2024

Deep eutectic solvents (DESs) are emerging as environmentally friendly designer for mass transport and heat transfer processes in industrial applications; however, the lack of accurate tools to predict thus control their viscosities under both a range environmental factors formulations hinders general application. While DESs may serve solvents, with nearly unlimited combinations, this unfortunately makes it experimentally infeasible comprehensively measure all potential interest. To assist design DESs, we have developed several new machine learning (ML) models that accurately rapidly diverse group at different temperatures molar ratios using, date, one most comprehensive data sets containing properties over 670 wide (278.15–385.25 K). Three ML models, including support vector regression (SVR), feed forward neural networks (FFNNs), categorical boosting (CatBoost), were DES viscosity function temperature ratio contrasted multilinear two-factor polynomial baselines. Quantum chemistry-based, COSMO-RS-derived sigma profile (σ-profile) features used inputs models. The CatBoost model is excellent externally predicting viscosity, indicated by high R2 (0.99) low root-mean-square-error (RMSE) average absolute relative deviations (AARD) (5.22%) values testing sets, 98% points lie within 15% AARD deviations. Furthermore, SHapley additive explanation (SHAP) analysis was employed interpret results rationalize predictions. result an approach predicts will aid accelerating appropriate applications.

Language: Английский

---

Task-specific deep eutectic solvents for the highly efficient and selective separation of H2S

Separation and Purification Technology, Journal Year: 2021, Volume and Issue: 276, P. 119357 - 119357

Published: July 27, 2021

Language: Английский

---

Solvent-free self-assembly synthesis of N-doped ordered mesoporous carbons as effective and bifunctional materials for CO2 capture and oxygen reduction reaction

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 427, P. 130878 - 130878

Published: June 18, 2021

Language: Английский

---

1-ethyl-3-methylimidazolium chloride plus imidazole deep eutectic solvents as physical solvents for remarkable separation of H2S from CO2

Separation and Purification Technology, Journal Year: 2021, Volume and Issue: 276, P. 119313 - 119313

Published: July 17, 2021

Language: Английский

---

Highly efficient and selective H2S capture by task-specific deep eutectic solvents through chemical dual-site absorption

Separation and Purification Technology, Journal Year: 2021, Volume and Issue: 283, P. 120167 - 120167

Published: Nov. 20, 2021

Language: Английский

---

Can deep eutectic solvents be the best alternatives to ionic liquids and organic solvents: A perspective in enzyme catalytic reactions

International Journal of Biological Macromolecules, Journal Year: 2022, Volume and Issue: 217, P. 255 - 269

Published: July 11, 2022

Language: Английский

---

Remarkable NH₃ absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

AIChE Journal, Journal Year: 2022, Volume and Issue: 68(6)

Published: Feb. 22, 2022

Abstract The elimination and recycling of NH 3 from the vented circulating stream synthesis process is great significance to protection air environment saving product. Deep eutectic solvents (DESs) with as many weak acidic sites possible are anticipated exhibit high efficiency for absorption at low pressures. Herein, we designed prepared a series metal‐based DESs by mixing EaCl, metal chloride (SnCl 2 , ZnCl FeCl or CoCl ), Gly. physiochemical properties, performance, mechanism were investigated systematically. It found that considerably solubilities in can be achieved utilizing multiple coordination hydrogen‐bond interaction provided ions Gly respectively. values (17.55 mol/kg 298.2 K 103.0 kPa, 10.24 6.8 kPa) highest reported date.

Language: Английский

---

Chelation‐activated multiple‐site reversible chemical absorption of ammonia in ionic liquids

AIChE Journal, Journal Year: 2022, Volume and Issue: 68(5)

Published: Jan. 31, 2022

Abstract Developing new and facile strategies for multiple‐site reversible chemical absorption of pollutant gases is wide interests in engineering research. Herein, a series lithium (Li)‐triethylene glycol (TEG)–chelated ionic liquids (ILs) with crown‐ether‐like cation different anions were designed. The Li‐TEG–chelated ILs prepared quantitative yields by simply mixing equimolar TEG Li salts. It found that the chelation + activates hydroxyl sites strong interaction ammonia (NH 3 ). Thus, chelated , as well chelation‐unsaturated provide multiple NH ILs. Moreover, totally reversible, solubilities remaining unchanged after eight times recycling. results obtained herein can useful guidance construction gas absorbents high capacity excellent reversibility.

Language: Английский

---

Natural deep eutectic solvent-based gels with multi-site interaction mechanism for selective membrane separation of SO2 from N2 and CO2

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 438, P. 135626 - 135626

Published: March 5, 2022

Language: Английский

---