Article
Chemistry, Inorganic & Nuclear
Xiaomin Hou, Si-Fu Tang
Summary: The conversion of cyanide to amide groups in the chemical reactions leads to the formation of uranyl-containing ionic complexes. These complexes exhibit various weak interactions in their crystal structures, and the transformation results in higher melting points and luminescence quenching.
INORGANIC CHEMISTRY
(2021)
Article
Engineering, Chemical
Kaibo Hu, Hongshuai Gao, Yi Nie, Haifeng Dong, Junjun Yan, Xiangping Zhang, Fujian Li
Summary: In this study, three pyridine carboxylic acid ionic liquids were synthesized and used for Y extraction. The [(CH2)(7)COOHpyr][NTf2] showed a high extraction efficiency of 99.3% at pH 2.5, achieving equilibrium within 5 minutes. Moreover, the separation coefficients of Ho/Y and Er/Y were both greater than 2, indicating good separation performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
T. M. Cassol, A. R. Duarte, C. S. Ribas, P. R. G. Fernandes
Summary: Broadband Dielectric Spectroscopy (BDS) technique was applied to investigate two ionic liquids, MC1 and MC2, analyzing the variations of complex permittivity and complex conductivity with temperature. The results provide insights into the electrical properties of ionic liquids at different temperatures.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Biochemistry & Molecular Biology
Loai Al-Sheakh, Sebastian Fritsch, Andreas Appelhagen, Alexander Villinger, Ralf Ludwig
Summary: This study reveals the paradoxical case of anti-electrostatic hydrogen bonding in carboxyl-functionalized ionic liquids. Through quantum chemical calculations, it is found that in pure doubly hydrogen-bonded cationic dimers, hydrogen bonding and dispersion can compensate for the repulsive Coulomb forces between like-charged ions.
Article
Metallurgy & Metallurgical Engineering
Xiayu Liang, Qingle Zeng
Summary: In this study, three novel morpholine carboxylic acid ionic liquids were designed and synthesized for the extraction of Sm(III). The effects of different factors on the extraction performance were tested, and [(CH2)7COOHmor][NTf2] was found to have the optimal extraction capacity. The extraction efficiency of Sm increased with the increase of pH, reaching >99.9% when the pH was 1.8. The loaded Sm(III) in organic phase could be easily stripped with HNO3, and the ionic liquid remained stable after 5 cycles. Under the optimized extraction conditions, Sm2O3 with 83.9% yield was obtained through large-scale recovery applications of the simulated waste liquid.
Article
Biochemistry & Molecular Biology
Hongfei Ni, Yiwei Zhang, Chuhong Zong, Zhengbo Hou, Hang Song, Yong Chen, Xuesong Liu, Tengfei Xu, Yingjie Luo
Summary: In this study, new tropine-based functionalized acidic ionic liquids (FAILs) were synthesized and demonstrated excellent catalytic performance in the synthesis of aspirin. The ionic liquid [Trps][OTs] exhibited high yield and selectivity, proving its potential as an ideal green solvent for esterification reactions and a suitable substitute for traditional catalysts.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Nabeel Mujtaba Abbasi, Victoria R. Zeger, Anis Biswas, Jared L. Anderson
Summary: This study focuses on magnetic ionic liquids (MILs) containing paramagnetic centers. It shows that modifications in the chemical structure of diglycolamides can influence the physico-chemical properties of MILs. Transition metals can improve thermal stability and reduce viscosity, leading to higher effective magnetic moments. The results highlight the importance of structural tunability in MILs for various applications such as organic synthesis and chemical separations.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Nikolett Bagany, Aleksandar Tot, Milan Vranes, Slobodan Gadzuri
Summary: For the first time, a carboxyl-functionalized ionic liquid was synthesized and characterized, with experimental and computational determination of its acidity constant. The introduction of carboxyl group was found to enhance hydration and structure-making properties of the imidazolium-based ionic liquids, as supported by viscosity measurements and computational simulations.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Syeda Saba Fatima, Azry Borhan, Muhammad Ayoub, Noraini Abd Ghani
Summary: The article emphasizes the importance of CO2 capture and sequestration, comparing the advantages and disadvantages of different methods, as well as the application prospects of ILs in absorption.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Biochemistry & Molecular Biology
Ying Chen, Yingjun Li, Hu Wang, Zaifei Chen, Yi-Zhu Lei
Summary: Imidazolium-based ionic polymers with hydroxyl/carboxyl groups and high ionic density were synthesized and used as bifunctional catalysts for CO2 cycloaddition. The presence of hydrogen bond donors significantly enhanced the catalytic activity, with the carboxyl-functionalized polymer exhibiting the highest yield. DFT calculations confirmed the strong hydrogen bonding between epoxide and the HBDs of the polymer.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Darpan V. Bhuse, Pundlik R. Bhagat
Summary: The study synthesizes a novel dyad, CPDCFBM, as a sensitizer for dye sensitised solar cells, demonstrating its efficient light-harvesting capabilities and high energy conversion efficiency. The dyad shows excellent electronic communication with TiO2 and good stability against aggregation, making it a suitable sensitizer for DSSCs.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Wei-dong Zhang, Yan Li, Ke Wang, Ye Yue, Mei Tie, Xue-jun Gu, You-lin Xue
Summary: This study used ionic liquids to extract cellulose-protein complexes (CPCs) from Se-enriched peanut leaf residue and compared the effects of different ionic liquids and organic solvents on the properties of CPCs.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
Yu-Zhu Wang, Zhuang-Zhuang Li, Zhong-Wen Liu, Xian-Ying Shi
Summary: Heterogenous carboxyl-functionalized bilayer ionic liquids/polyoxometalate catalysts were synthesized and characterized. The catalyst showed good amphiphilicity and achieved 100% sulfur removal for four model fuels without the need for extractant. The polyoxometalate and carrier had significant effects on the catalytic activities, with Keggin-type phosphotungstate and 50 nm silica being superior for desulfurization. The catalyst also demonstrated good recyclability in scale-up experiments.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Biochemistry & Molecular Biology
Laura Cocheci, Lavinia Lupa, Nick Samuel Tolea, Radu Lazau, Rodica Pode
Summary: This study successfully synthesized and functionalized Mg3Al-LDH to obtain efficient adsorbent materials for palladium removal from aqueous solutions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Liang Wei, Zeyu Geng, Yantong Liu, Ruizhong Lu, Yifan Xu, Chunjie Liu, Yun Xu
Summary: Four different mercapto carboxylic anion functionalized ionic liquids were designed and studied for their H2S uptake capabilities. The results showed high absorption capacity and low energy consumption during desorption, making them a promising alternative for H2S absorption.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Bart Verlinden, Andreas Wilden, Karen Van Hecke, Richard J. M. Egberink, Jurriaan Huskens, Willem Verboom, Michelle Hupert, Patrik Wessling, Andreas Geist, Petra J. Panak, Rainier Hermans, Marc Verwerft, Giuseppe Modolo, Koen Binnemans, Thomas Cardinaels
Summary: This study investigated the solvent optimization, radiolysis behavior, and solvent extraction characteristics of the diglycolamide mTDDGA. It was found that the two diastereomers of mTDDGA exhibited significant differences in extraction, and the main degradation compound showed good ability to extract uranium.
SOLVENT EXTRACTION AND ION EXCHANGE
(2023)
Review
Green & Sustainable Science & Technology
Koen Binnemans, Peter Tom Jones
Summary: This paper reviews the properties of methanesulfonic acid (MSA) and its potential for use in hydrometallurgy. MSA is a very strong acid with high solubility of its salts in water and low toxicity. It offers more environment-friendly alternatives to traditional acids in lead hydrometallurgy and can be adopted in all hydrometallurgical processes that require strong acids. The global production of MSA is expected to increase rapidly in the future.
JOURNAL OF SUSTAINABLE METALLURGY
(2023)
Article
Green & Sustainable Science & Technology
Viet Tu Nguyen, Clio Deferm, Ward Caytan, Sofia Riano, Peter Tom Jones, Koen Binnemans
Summary: A hydrometallurgical process has been developed to convert lithium chloride solution to lithium hydroxide solution by a chloride/hydroxide anion exchange reaction using solvent extraction. The organic phase, composed of a quaternary ammonium chloride and a hydrophobic phenol in a diluent, showed the best results. The process involves two steps: contacting the organic phase with sodium hydroxide solution and then with lithium chloride solution, resulting in the transformation of lithium chloride solution into lithium hydroxide solution. The process has been successfully demonstrated in continuous counter-current mode.
JOURNAL OF SUSTAINABLE METALLURGY
(2023)
Article
Engineering, Environmental
Hongshan Zhu, Stephan Heinitz, Samuel Eyley, Wim Thielemans, Koen Binnemans, Steven Mullens, Thomas Cardinaels
Summary: 213Bi-labeled radiopharmaceuticals for cancer treatment are of great interest, and finding a suitable sorbent material for separating 213Bi from its parent radionuclide 225Ac is challenging. This study reports on the synthesis and evaluation of sulfonated carbon materials (SCMs) as sorbents in inverse 225Ac/213Bi generators. The sulfonation of carbon materials prepared at 500 degrees C (SCM-500) showed promising results, with high selectivity for Bi3+ over La3+ and high chemical 213Bi yield in column tests.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Joren van Stee, Filip Keppens, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This study presents a reproducible production method for microreactor manifolds using commercially available and 3D printed parts. It was found that tubes and fittings alone cannot produce reliable and reproducible manifolds. However, a hybrid manifold consisting of a 3D printed distributor and commercial tubes and fittings showed a significant reduction in maldistribution for both single- and two-phase flow. Furthermore, the surface tension of the applied liquid was shown to have a significant effect on maldistribution, possibly due to the presence of air bubbles.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Environmental Sciences
Dzenita Avdibegovic, Elke Barbier, Blaz Jaklic, Sreco Davor Skapin, Matjaz Spreitzer, Koen Binnemans
Summary: In the present study, strong cation and anion exchange resins were used to recover non-rare earth constituents from end-of-life rare-earth magnets. The results showed that the cation exchange resin was effective in recovering metal ions from both aqueous and ethanolic solutions, while the anion exchange resin selectively recovered copper and iron from ethanolic solutions. The ion exchange mechanism involved the formation of chloro complexes of copper and their exchange with sulfate counter ions of the resin.
Article
Multidisciplinary Sciences
Nadeem Abad, Fares Hezam Al-Ostoot, Sajda Ashraf, Karim Chkirate, Majed S. Aljohani, Hussam Y. Alharbi, Shafeek Buhlak, Mohamed El Hafi, Luc Van Meervelt, Basheer M. Al-Maswari, El Mokhtar Essassi, Youssef Ramli
Summary: Drug design is a constantly evolving field where researchers strive to improve their understanding of molecular interactions and develop innovative techniques for creating effective and safe medications. This article reports the synthesis and characterization of a novel triazolequinoxalin molecule (TZQ) through various spectroscopic and crystallographic methods.
Article
Crystallography
Hai Le Thi Hong, Thao Le Phuong, Thong Van Pham, Hue Minh Thi Nguyen, Luc Van Meervelt
Summary: (English Summary:)
The molecular and crystal structures of (E)-2-[(benzo[d]thiazol-2-ylimino)methyl]-5-(diethylamino)-phenol and its unexpected reaction product with triphenylborane are described. The absorption and emission properties of these compounds as well as their aggregation-induced emission properties are discussed.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Wanlu Liu, Chunhui Liu, Luca Pilia, Hongliang Zhang, Pascal van der Voort, Anna M. Kaczmarek, Rik Van Deun
Summary: We synthesized a co-condensed hollow ethane-bipyridine periodic mesoporous organosilica (HEt-bpy-PMO) as a host material to anchor lanthanides for developing a multifunctional chemical sensor. The luminescence properties of the developed hybrid materials were studied in detail in the solid-state and after dispersing in water. The Eu3+ or Tb3+ incorporated materials showed ions selectivity towards Cu2+, Co2+, and Fe3+ as ion sensors, and exhibited excellent acetone sensing selectivity.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Pieter Geysens, Da Tie, Alexandru Vlad, Jan Fransaer, Koen Binnemans
Summary: Electrowinning is a clean process for neodymium metal recovery, but the current methods are limited by high energy consumption or high costs and environmental impact. In this study, new fluorine-free organic electrolytes were developed, enabling the electrodeposition of neodymium metal at room temperature. These electrolytes consist of solvated neodymium borohydride dissolved in ether solvents, prepared from non-fluorinated precursors. The electrodeposition of neodymium in these electrolytes demonstrated higher stability and was characterized to confirm the presence of neodymium metal.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Filip Kolesar, Karen Van Hecke, Peter Zsabka, Ken Verguts, Koen Binnemans, Thomas Cardinaels
Summary: A new variant of the AmSel system using Aliquat-336 nitrate as the diluent was tested for the separation of Am(iii) from a PUREX raffinate. The introduction of Aliquat-336 nitrate improved the separation between Am(iii) and fission products, especially for light lanthanides and strontium. The Am/Cm separation factors remained similar to the original AmSel process. Slower stripping kinetics and extraction of the SO3-Ph-BTBP complexant occurred at low HNO3 concentrations during the stripping step, but mitigation actions were implemented to counteract these issues.
Article
Chemistry, Multidisciplinary
Yaoguang Song, Xiaolei Zhang, Peter A. A. Klusener, Peter Nockemann
Summary: Investigating the effects of different cross-linking agents on templating synthesis of mesoporous carbons for supercapacitors, it was found that the type of cross-linker and its ratio with precursor monomer are crucial for resulting pore architecture and electrochemical performance of the materials. Glyoxal was identified as a promising cross-linker for generating ordered mesopores, leading to higher capacitance in supercapacitor electrodes compared to formaldehyde and glyoxylic acid. This study provides insights for customizing mesoporous carbons by selecting suitable cross-linking agents and ratios.
Article
Chemistry, Multidisciplinary
Claire Boudie, Manuel Marechal, Guillaume Ah-Lung, Johan Jacquemin, Peter Nockemann
Summary: In this study, copper oxide nanoparticles were synthesized using an ionic liquid and different copper(II) carboxylate precursors, resulting in nanoparticles of various sizes. The particle formation and size were characterized using crystallography, UV-Vis spectroscopy, TEM, and SWAXS analyses.
Article
Chemistry, Multidisciplinary
Panqin Wang, Jiaren Du, Tengyue Wang, Shaoxing Lyu, Rik Van Deun, Dirk Poelman, Hengwei Lin
Summary: This research overcomes the limitations of traditional methods for evaluating the inhomogeneity of thermal fields by developing a thermochromic smart material, SrGa12-xAlxO19:Dy3+. It allows flexible visualization of temperature inhomogeneities and exhibits abundant colors and amazing color-changing features. This thermo-responsive smart material can achieve highly efficient and simple visualization of invisible thermal distribution in industry and beyond.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Hongshan Zhu, Stephan Heinitz, Samuel Eyley, Wim Thielemans, Elien Derveaux, Peter Adriaensens, Koen Binnemans, Steven Mullens, Thomas Cardinaels
Summary: In this study, the effects of gamma radiation on AG MP-50 cation exchange resin and sulfonated activated carbon (SAC) were investigated. It was found that the surface sulfonic acid groups of AG MP-50 resin suffered severe radiation-induced degradation, while no apparent changes in acquired morphological characteristics were observed for SAC. The sorption performance of both materials for La3+ and Bi3+ remained generally the same.