Article
Chemistry, Physical
Yu Deng, Yigang Ding, Zhong Huang, Ying Yu, Jun He, Yi Zhang
Summary: Two novel carboxylic acid based ionic liquids were synthesized and studied for the extraction of yttrium (Y(III)) and mixed rare earth elements (REEs). One IL showed higher extraction efficiency for Y(III) while the other demonstrated better selective separation behavior for mixed REEs, avoiding saponification procedures and resulting wastewater.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Onajite T. Diejomaoh Abafe, Muhammad Mohsin Azim, Bice S. Martincigh, Annegret Stark
Summary: This study investigates the physicochemical properties of a series of cation-fluorinated ionic liquids and provides experimental evidence for nanosegregation and triphilicity in these liquids. The introduction of fluoroalkyl chains enhances hydrogen bond interactions between anions and cations and leads to structural rearrangements. The study also demonstrates the use of a group contribution method to predict the density of the liquids.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Yanyan Cheng, Fujian Li, Qingrong Wu, Kuilin Peng, Bangyu Fan, Yinge Bai, Zhongzhi Wang, Nian Zhang, Xiangping Zhang
Summary: Rare earth metal ionic liquids (REMILs) were used to separate ethylene/ethane (C2H4/C2H6) in N, N-dimethylformamide (DMF), achieving fast and selective absorption of C2H4 through the complexation between Er3+ and C2H4 and interactions in absorbents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yuqing Fei, Zhengjian Chen, Jiliang Zhang, Mingyuan Yu, Jing Kong, Zhisheng Wu, Jun Cao, Jiaheng Zhang
Summary: Thiazolium salts are structurally analogous to imidazolium-based ionic liquids, and are considered a new class of ILs. Thiazolium ILs demonstrated good thermal stability and moderate density, refractive index, and surface tension, with these properties generally decreasing with temperature when compared to conventional imidazolium ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Kuan Shiong Khoo, Yen Mun Chong, Wen Sing Chang, Jie Min Yap, Su Chern Foo, Ianatul Khoiroh, Phei Li Lau, Kit Wayne Chew, Chien Wei Ooi, Pau Loke Show
Summary: CO2-based alkyl carbamate ILs were proposed as an alternative solvent for lutein extraction from Chlorella sorokiniana. Complete separation of lutein from ILs was achieved by distillation under mild conditions, and the recyclability of DPCARB was found to be satisfactory after multiple cycles of extraction. The potential of CO2-based alkyl carbamate ILs in lutein extraction is promising due to their recyclability, which helps reduce environmental impact and operating costs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Alok Rout, Satyabrata Mishra
Summary: This article reviews the latest research on the mixture of different extractants and diluents in an ionic liquid diluent, highlighting the influence of ligand polarity and structure on the physicochemical properties of the diluent.
Article
Engineering, Chemical
Hao Su, Shuainan Ni, Chenhao Liu, Xiaoqi Sun
Summary: In this study, four fatty acid-based ionic liquids were synthesized to remove aluminum impurities in ion-adsorption rare earth ores. One specific ionic liquid, [methyltrioctylammonium][neodecanoate], showed better extraction and separation performance for aluminum. A process combining fractional extraction and extraction-precipitation was developed to remove impurity ions in the leaching solution of magnesium sulfate and achieve high concentration rare earth chloride product with high purity.
MINERALS ENGINEERING
(2023)
Article
Engineering, Chemical
Hao Su, Shuainan Ni, Chao Bie, Shan Wu, Xiaoqi Sun
Summary: This article introduces the application of a new ionic liquid [N-1888][NDA] in the separation of rare earth elements. By studying its extraction capacity, stripping property, and recycling stability, an efficient separation process for yttrium was developed. The experimental results showed that this process has a high separation factor and can produce high-purity yttrium without the use of salting-out reagents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zhiyuan Zeng, Yun Gao, Chenhao Liu, Xiaoqi Sun
Summary: In this article, a novel functionalized ionic liquid was developed for the removal of aluminum impurity from ion-adsorbed type RE ores leaching solution. The ionic liquid exhibited high selectivity and efficient removal of aluminum, while maintaining a high recovery rate of RE. This research provides valuable insights into the efficient and sustainable removal of aluminum impurity from actual RE leaching solution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Yu Deng, Yi Zhang, Yigang Ding
Summary: A new ionic liquid was developed to extract rare earth elements and separate Sm(III) from spent SmCo magnets. Higher extraction of La(III) was observed in acetate medium. The ionic liquid showed excellent reusability in the industrial separation-stripping cycles.
Article
Engineering, Mechanical
Qiangliang Yu, Chaoyang Zhang, Rui Dong, Yijun Shi, Yurong Wang, Yanyan Bai, Jiaying Zhang, Meirong Cai, Feng Zhou, Weimin Liu
Summary: The study demonstrates that halogen-free dicationic ionic liquids exhibit excellent friction-reducing and anti-wear properties, especially at high temperatures. Analysis of worn surfaces reveals that the effectiveness of ILs is attributed to the formation of high quality tribofilms consisting of both tribochemical reaction and ordered absorption films.
Article
Chemistry, Multidisciplinary
Kecheng Jie, Yujuan Zhou, Hugh P. Ryan, Sheng Dai, Jonathan R. Nitschke
Summary: This article discusses the concept of porous liquids and their potential applications in the chemical industry, focusing on early reports of successful construction of porous liquids based on existing porous scaffolds. It pays particular attention to design strategies and structure-property relationships.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Zelalem Anja Zema, Tingting Chen, Hegang Shu, Yingjie Xu
Summary: The study investigated the effects of alkyl substitutions at alpha or beta position adjacent to amino group of primary alkanolamine ligands on CO2 absorption and physicochemical properties of metal chelated dual functional ionic liquids. The results showed that introduction of alkyl group can enhance CO2 capacity and the effect at alpha position is more significant. DFT calculations revealed that alkyl substitutions reduce the Mulliken charge of N and O atom, weakening the cation coordination interaction and decreasing the density and speed of sound of DFILs.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Pablo Manuel Martinez-Rubio, Maria Dolores Aviles, Joaquin Arias-Pardilla, Francisco Jose Carrion-Vilches, Jose Sanes, Maria Dolores Bermudez, Ramon Pamies
Summary: A new series of nanofluids based on graphene dispersed in 2-hydroxyethylammonium lactate (ML) ionic liquid was developed. The concentration of graphene and temperature showed significant effects on the viscoelastic behavior and conductivity of the nanofluids. The viscosity unexpectedly decreased with a low concentration of graphene, while shear thinning effects appeared with higher concentrations. The complex Burgers model was used to describe the creep-recovery behavior of the nanofluid with 1 wt% of graphene.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Polymer Science
Veronika S. S. Fedotova, Maria P. P. Sokolova, Vitaliy K. K. Vorobiov, Eugene V. V. Sivtsov, Mauro C. C. Ribeiro, Michael A. A. Smirnov
Summary: Two polymerizable ionic liquids were synthesized and their chemical structure and thermal properties were analyzed. One of the ionic liquids demonstrated the potential to dissolve bacterial cellulose and showed promising applications in 3D printing ink.
Article
Chemistry, Applied
Qiaoling Liu, Haitao Yu, Tiancheng Mu, Zhimin Xue, Feng Xu
Summary: The study successfully designed six novel superbase-based solvents that can efficiently dissolve cellulose at lower temperatures, with DBN-PyO-4 showing the best performance. The good performance of the prepared superbase-based solvents on cellulose dissolution resulted from the synergistic effect of their ability to form hydrogen bonds and their polarizability.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Baolong Zhang, Hui Fu, Tiancheng Mu
Summary: The electrochemical oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid has received attention recently. A strategy for synthesis of metal sulfide/metal phosphide nanotube arrays was proposed, which showed improved performance in the electrocatalytic oxidation of HMF.
Article
Chemistry, Multidisciplinary
Yibin Zhang, Zhimin Xue, Xinhui Zhao, Baolong Zhang, Tiancheng Mu
Summary: Electrochemical oxidation of HMF into FDCA is a promising strategy, and finding cost-effective catalysts is crucial. In this study, carbon-based heterostructures were prepared using a facile method, and their excellent performance was confirmed.
Article
Chemistry, Multidisciplinary
Bradley A. Rogers, Halil Okur, Chuanyu Yan, Tinglu Yang, Jan Heyda, Paul S. Cremer
Summary: Research has shown that weakly hydrated anions can solubilize macromolecules but cause small molecules made from identical chemical constituents to precipitate out. This phenomenon can be explained by the regulation of anion binding to polymers by molecular curvature and interfacial water structure. The interactions of NaSCN with polyethylene oxide oligomers and polymers of varying molecular weight reveal a link between ion-specific effects and theories addressing how hydrophobic hydration is modulated by the size and shape of a hydrophobic entity.
Article
Chemistry, Physical
Xue Lan, Yan Tao Dong, Tiancheng Mu, Xiao Zheng Lan
Summary: The study reveals that the formation process of the deep eutectic solvent ChCl:urea exhibits rapid calorimetric effect and thermokinetics, characterized by a rapid endothermic process. Rate constants and reaction orders were determined by analyzing thermokinetic curves, showing low activation energy and activation parameters.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Engineering, Environmental
Yuechao Yang, Danxia Xu, Baolong Zhang, Zhimin Xue, Tiancheng Mu
Summary: This study reveals that the adsorption energy of substrate molecules is an activity descriptor for electrochemical alcohol and aldehyde oxidation. Proper adsorption energy of the substrate molecules can achieve optimal catalytic activity. This finding is significant for the design of advanced catalysts and the utilization and production of renewable resources.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Haitao Yu, Dongkun Yu, Zhimin Xue, Baolong Zhang, Tiancheng Mu
Summary: The development of green catalytic systems, especially those derived from renewable resources like DLGO, for the reductive conversion of CO2 is highly attractive for sustainable processes. The DLGO-based catalytic system shows high efficiency in activating N-H and Si-H bonds, making it a promising approach for practical applications in transforming CO2 and utilizing biomass simultaneously.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Chuanyu Yan, Enzo Moretto, Oussema Kachouri, Jean-Luc Biagi, Jean-Sebastien Thomann, Francois Kayser, Reiner Dieden
Summary: This study demonstrates the use of solid-state nuclear magnetic resonance spectroscopy for studying dehydration and deuterium exchange at the liquid-solid interface. The results provide evidence of complete removal of physically adsorbed water molecules on the silica surface in the presence of DMSO, and satisfactory deuteration of silanol groups in the presence of a DMSO-D2O mixture. Additionally, the study develops a liquid-state NMR-based technique for quantifying moisture and hydroxyls on solids.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Chemical
Haitao Yu, Zhimin Xue, Yang Wang, Chuanyu Yan, Lan Chen, Tiancheng Mu
Summary: Efficient dissolution of lignin is crucial for its upgrading into valuable chemicals, and it relies on the development of robust solvent systems. In this study, a novel, green, and robust solvent system based on biomass-derived dimethyl isosorbide (DMI) and water was developed for lignin dissolution. The DMI-based solvent systems demonstrated good solubility for different types of lignin, and the lignin solubility correlated with Hansen solubility parameters and Kamlet-Taft parameters. This work not only provided an innovative and green solvent system for lignin dissolution, but also contributed to the realization of a closed-loop biorefinery process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zhaohui Yang, Baolong Zhang, Chuanyu Yan, Zhimin Xue, Tiancheng Mu
Summary: Electrochemical oxidation is a promising method for the selective conversion of HMF to FDCA with high efficiency at room temperature. Catalysts with high current densities are crucial for the industrial application of the HMFOR. The rate-determining step in the conversion of HMF is the PCET process of HMF dehydrogenation, and theoretical calculations reveal differences in the energy barriers of this process. Ni(OH)2/NF catalyst doped with Cr shows superb activity, achieving the highest current densities for HMFOR and a high yield of FDCA.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Ridha Ben Said, Seyfeddine Rahali, Chuanyu Yan, Mahamadou Seydou, Bahoueddine Tangour, Abdelhamid Sayari
Summary: This work investigates the mechanistic study of the reaction between diamines and CO2. The reaction was found to follow two different mechanisms depending on the nature of the diamine. The involvement of water molecules was found to have a catalytic effect on the reaction.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Dongkun Yu, Zhimin Xue, Tiancheng Mu
Summary: Deep eutectic solvents (DESs), as a class of green and easily modified solvents composed of monomers from biological sources, have been widely used in both laboratory and industrial scales. This review focuses on four strategies for materials synthesis using DESs: solvothermal methods, electrodeposition, calcination, and polymerization.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Review
Chemistry, Physical
Yu Chen, Chong Liu, Shien Guo, Tiancheng Mu, Lei Wei, Yanhong Lu
Summary: This review discusses the capture, sensing, and conversion of CO2 using MXene and MXene-based materials, and summarizes the underlying mechanisms. The findings provide new insights for efficient CO2 utilization and widespread applications.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Ruifen Shi, Dongkun Yu, Fengyi Zhou, Jiangfeng Yu, Tiancheng Mu
Summary: A new deep eutectic solvent (DES) driven by halogen bonding (XB) has been developed, forming a family of eutectic mixtures in the liquid state through the combination of quaternary ammonium salts and dihalogens. The study not only broadens the potential applications of DES systems but also reveals the potential of XB complexes as solvents.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Hongyu Mou, Zhimin Xue, Baolong Zhang, Xue Lan, Tiancheng Mu
Summary: A new strategy was proposed in this work to form defect-rich ultra-thin N, S, and O tridoped carbon/Co9S8 (NSOC/CS) composite by coating a deep eutectic solvent (DES) on carbon cloth and calcining. Experimental results showed that NSOC/CS has excellent hydrogen evolution reaction (HER) activity and stability, beneficial for catalytic reactions in neutral, alkaline, and acidic electrolytes.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
