Article
Chemistry, Applied
Xiangbo Song, Yuhe Liao, Tingsen Liu, Dedu Yin, Haiyong Wang, Lungang Chen, Longlong Ma, Hongwei Yang, Leonid G. Voskressensky, Chenguang Wang
Summary: A novel strategy was developed for catalytic conversion of fructose to 5-hydroxymethylfurfural (HMF) using inexpensive ionic liquids to adjust the acidity of the biobased acid catalyst. The combination of 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) with oxalic acid produced a high yield of HMF under mild conditions. The mechanism of oxalic acid dissociation induced by [Bmim]Cl was proposed based on experimental analysis.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Ting He, Cheng-Bin Hong, Peng-Chong Jiao, Heng Xiang, Yan Zhang, Hua-Qiang Cai, Shuang-Long Wang, Guo-Hong Tao
Summary: The study systematically examined the Bronsted acidity of [AAE]X PILs in green solvents and found that the cationic structures had little effect on the acidity, while the anions had no effect. Four different methods were used to determine the acidic strength, including the overlapping indicator method, potential titration method, Hammett method, and DFT method. These methods were reliable for assessing the acidity of [AAE]X.
Article
Chemistry, Physical
Geeta Durga, Pooja Kalra, Vinay Kumar Verma, Kanjur Wangdi, Anuradha Mishra
Summary: Ionic liquids have established themselves as a preferred solvent in synthetic chemistry, particularly in polymer chemistry. They are versatile solvents used for polymeric reactions and can also be polymerized to enhance their inherent properties, finding applications in various fields such as electrochemical devices, nanocomposites, optoelectronics, and more. This comprehensive review covers both aspects of ILs as a solvent in polymeric reactions and their polymeric form, poly(ionic liquids), presenting their diverse potential applications.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Jingli Han, Manxing Li, Nana Tian, Cong Liu, Yingying Zhang, Zeqiang Ji, Xiangyu Sun
Summary: A simple method based on mathematical relational expression and group contributions is proposed to predict the heat capacity of ionic liquids (ILs). A comprehensive heat capacity database is established, including 11873 measured data points for 310 ILs at one atmosphere pressure, covering temperature range of 167.70-524.87 K and heat capacity range of 84-2040 J.mol(-1).K-1. The method achieves accurate prediction of heat capacity for a variety of ILs.
FLUID PHASE EQUILIBRIA
(2023)
Article
Chemistry, Physical
Rolf Zeissler, Florian Pabst, Till Boehmer, Thomas Blochowicz
Summary: The shape of the structural relaxation peak in the susceptibility spectra of liquids provides important information about molecular mobilities and dynamic heterogeneity. Recent studies show a generic shape of this peak near the glass transition temperature, reducing the information contained in the peak shape. At higher temperatures, the peak shape varies strongly between different liquids. In this study, we investigate the influence of intramolecular dynamics on the peak shape at these temperatures using depolarized light scattering and dielectric spectroscopy.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Construction & Building Technology
Stephane Poyet, Gaetan Touze, Jean-Luc Adia, Laurent Charpin, Sylvie Michel-Ponnelle
Summary: The effect of temperature on water vapour desorption isotherms can be characterized using the Clausius-Clapeyron equation and the isosteric energy of adsorption. However, there are some disadvantages to this traditional approach, and this article proposes a simple alternative method for experimentally characterizing this isosteric energy by monitoring the relative humidity of a cementitious material heated under sealed conditions. This alternative method allows for a direct evaluation of the isosteric energy by observing the evolution of relative humidity with temperature.
CEMENT AND CONCRETE RESEARCH
(2021)
Editorial Material
Chemistry, Physical
D. Bradley G. Williams, Iurii Bodachivskyi
Summary: This comment points out misinterpreted data related to the reported synthesis of Bronsted acidic ionic liquids for the dissolution of chitosan. Through various analyses, it is demonstrated that such ionic liquids are unlikely to be produced.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Yuval Simha, Gil Daniels, Amalya Goldman, Elihay Kuniavsky, Dmitry Tsvelikhovsky
Summary: A new strategy for direct access to fully substituted polycyclic imidazolium salts using alpha-enaminones and proline as the reagents is reported. This open-flask operation is a catalyst-, metal-, and Lewis acid-free green process, which does not require an ion-exchange step. It can produce good yields with minimal formation of side products, and is not limited to aryl substituents.
Article
Chemistry, Physical
Hadi Esmaeili, Hassan Hashemipour
Summary: This study used Multi-Gene Genetic Programming (MGGP) to predict the surface tension of binary mixtures containing ionic liquids, obtaining accurate correlations that can determine the surface tension with just mole fraction and constant temperature. The results of this study are promising for simplifying and determining the surface tension of such mixtures.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Spectroscopy
Zhao Pan, Rui Hang Li, Yao Yao Cui, Xi Jun Wu, Yu Yan Zhang, Yu Tian Wang
Summary: This study proposed a model combining 3D fluorescence spectra with wavelet moments for identifying adulterated sesame oil, which effectively reduced noise and data volume through wavelet multiresolution decomposition. The extracted features were validated by hierarchical clustering, and target wavelet moments for identifying adulterated sesame oil were determined, providing a fast and expandable method for online measurement and reference for vegetable oil authentication.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Sanjin Marion, Natasa Vucemilovic-Alagic, Mario Spadina, Aleksandra Radenovic, Ana-Suncana Smith
Summary: Solid state nanopores are single-molecular devices governed by nanoscale physics with a broad potential for technological applications, but the control of translocation speed in these systems is still limited. Ionic liquids are molten salts commonly used as alternate solvents to regulate the chemical and physical interactions on solid-liquid interfaces.
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
Geochemistry & Geophysics
Xiangchao Meng, Gang Yang, Feng Shao, Weiwei Sun, Huanfeng Shen, Shutao Li
Summary: Despite the existence of many pansharpening methods, few are widely used in practice due to issues such as instability, implementation complexity, and time-consuming processes.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Materials Science, Biomaterials
Kailash Prasad Prajapati, Masihuzzaman Ansari, Deepak Kumar Yadav, Shikha Mittal, Bibin Gnanadhason Anand, Karunakar Kar
Summary: Covalent tagging of fluorophores is crucial for studying biological processes and has advantages despite challenges in synthesis and purification. A novel method for making fluorescent amyloid nanofibers is described, which maintains the characteristics of the nanofibers and exhibits stability. This method has significant implications for amyloid research in vitro and in animal models.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Physics, Applied
Bo Zhang, Yongchang Meng, Jinliang He
Summary: In this paper, a simple method using a suspended dielectric as a sensor is proposed to measure the electric field with space charges. By testing the charge accumulated on the suspended dielectric, the applied electric field can be determined, and it is shown that the amount of accumulated charge is linear with the normal component of the external electric field.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Engineering, Environmental
Raul I. Aravena, Jason P. Hallett
Summary: This study aimed to explore the recovery and purification of plant sterols and stanols using ionic liquids. The results showed that precipitation temperature, alcohol concentration, water concentration, type of alcohol, and structure of amine strongly affected the precipitation from model systems. However, in real-life applications, the precipitation performance of plant sterols and stanols from tall oil was significantly worse. It was found that saponifying the tall oil before precipitation significantly improved the recovery and purity of plant sterols and stanols.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Ellen Piercy, Willy Verstraete, Peter R. Ellis, Mason Banks, Johan Rockstroem, Pete Smith, Oliver C. Witard, Jason Hallett, Christer Hogstrand, Geoffrey Knott, Ai Karwati, Henintso Felamboahangy Rasoarahona, Andrew Leslie, Yiying He, Miao Guo
Summary: A waste-to-protein system can transform waste into food-grade or feed-grade protein through various technologies. It has the potential to maximize resource recovery and promote a sustainable protein future by extracting nutrients and converting waste-carbon into fermentable sugars or other chemicals. However, regulatory processes and market barriers need to be addressed for the system's expansion.
Article
Chemistry, Physical
Daniel Rauber, Frederik Philippi, Julian Becker, Josef Zapp, Bernd Morgenstern, Bjoern Kuttich, Tobias Kraus, Rolf Hempelmann, Patricia Hunt, Tom Welton, Christopher W. M. Kay
Summary: Ionic liquids are attractive liquid materials for advanced applications, and understanding the structure-property relations is crucial for targeted design. In this study, we prepared novel protic ionic liquids (PILs) with a guanidinium cation and different anions, and used various techniques to investigate their thermal, transport, and spectroscopic properties. The results provide insight into the influence of the anion and the ether substitution on the physical and spectroscopic properties of the PILs.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Raul I. Aravena, Jason P. Hallett
Summary: This research studied the physicochemical properties of mixtures between fatty acids and amines and found that the structure of the amine strongly affects proton transfer and the properties of the mixtures. A larger proton transfer leads to a higher melting point and higher viscosity. Certain amine groups can also enhance the proton transfer. In addition, amine groups such as butylamine and triethylamine exhibit characteristics similar to ionic liquids, potentially expanding the application of ionic liquids as solvents.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Husain A. Baaqel, Andrea Bernardi, Jason P. Hallett, Gonzalo Guillen-Gosalbez, Benoit Chachuat
Summary: This paper presents a systematic methodology for uncertainty quantification in life-cycle assessment (LCA) of early-stage technologies using global sensitivity analysis (GSA). A case study comparing the life-cycle impacts of two dialkylimidazolium ionic liquids is conducted to illustrate the methodology. Failure to account for the foreground process uncertainty alongside the background uncertainty underestimates the predicted variance of the end-point environmental impacts by a factor of two, highlighting the importance of considering both types of uncertainties in LCA.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
A. Al Ghatta, P. Y. S. Nakasu, J. P. Hallett
Summary: The introduction of new green commodity chemicals relies on developing biobased building blocks from biomass, such as furanic compounds, to achieve versatile molecular design for high-performing end products. However, large-scale implementation of furanic compounds requires further development in various aspects of the biorefinery concept. This study examines the current scientific approach to implementing furan-based building blocks in the plastics and surfactants industry and identifies areas for future research to develop a competitive and efficient biorefinery approach.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Pedro Verdia Barbara, Aida Abouelela Rafat, Jason P. Hallett, Agnieszka Brandt-Talbot
Summary: As fossil hydrocarbons are being phased out, the importance of cellulose, the main component in woody plant parts and a commodity industrial product, is expected to increase. This review discusses the potential of recycling cellulose from waste biomass using ionic liquids and deep eutectic solvents, which can provide stable, sustainable, and cost-effective supplies of cellulosic glucose or cellulose fibers. The review also highlights the challenges and opportunities in finding applications for the recovered cellulose.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
George M. Neville, Ana-Maria Dobre, Gavin J. Smith, Samantha Micciulla, Nick J. Brooks, Thomas Arnold, Tom Welton, Karen J. Edler
Summary: Mixtures of choline and geranic acid have been found to facilitate the transdermal delivery of larger pharmaceuticals, such as insulin. However, little is known about the mechanism of activity, hindering the efficient discovery of new materials. This study investigates the biophysical interactions between membrane-active deep eutectic solvents and ionic liquids with solid-supported model lipid bilayers using neutron reflectivity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Talia A. Shmool, Laura K. Martin, Andreas Jirkas, Richard P. Matthews, Anna P. Constantinou, Devkee M. Vadukul, Theoni K. Georgiou, Francesco A. Aprile, Jason P. Hallett
Summary: We developed a rational approach for the development of stimuli-responsive ionogels with precise control over their features for pharmaceutical applications. By strategically integrating silk fibroin and biocompatible ionic liquids, we overcame the limitations of complex chemistry, high viscosity, poor biocompatibility, and low biodegradability. Our approach resulted in the formation of thermoresponsive ionogels with tunable properties and enhanced drug solubility. The development of these ionogels has significant implications for drug delivery applications.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Samson O. Anuchi, Kyra L. Sedransk Campbell, Jason P. Hallett
Summary: Converting lignin into advanced porous carbon materials with desirable surface functionalities has been challenging. This study explores the use of ionic liquids (ILs) in copyrolysis of lignin to produce porous carbon materials with large surface areas and an abundance of surface functional groups. The results demonstrate that ILs with bulky anions and small cation sizes can induce porosity in lignin-derived carbons. Among the ILs tested, [C(2)MIm][NTF2] showed the best performance in terms of specific surface area.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Cariny Polesca, Amir Al Ghatta, Helena Passos, Joao A. P. Coutinho, Jason P. Hallett, Mara G. Freire
Summary: This study successfully dissolved chicken feathers in an aqueous solution of bio-based ionic liquid, achieving efficient and environmentally friendly keratin recovery. Under optimal recovery conditions, a recovery rate of 93% was achieved, and the ionic liquid showed reusable properties. Techno-economic assessment showed that the produced keratin can be commercialized, with a minimum selling price of $22 per kg and low CO2 emission.
Article
Chemistry, Multidisciplinary
Shaoqing Qu, Eftychios Hadjittofis, Francisco Malaret, Jason Hallett, Rachel Smith, Kyra Sedransk Campbell
Summary: Pure simonkolleite nano/microcrystals were synthesized by directly oxidizing metallic Zn using aqueous ionic liquid solutions. The morphology of the simonkolleite flakes was controlled by adjusting the concentration of the ionic liquid solution, reaction time, and temperature. After calcination, the simonkolleite transformed into hexagonal ZnO nanoparticles/microparticles, resulting in a convenient reaction route for obtaining ZnO with a relatively uniform shape and size.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Physical
Spyridon Koutsoukos, Jocasta Avila, Nicholas J. J. Brooks, Margarida Costa Gomes, Tom Welton
Summary: Understanding the structure-property relationship of ionic liquids is crucial for their applications. Studying a series of homobaric ionic liquids reveals the effects of specific chemical groups on overall interaction. This study focuses on ionic liquids with 12 total carbons and finds that different arrangements of carbons result in compounds with distinct properties. X-ray scattering is used to investigate the nanoscale ordering and its relation to macroscopic properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Chemistry, Multidisciplinary
Josiel Martins Costa, Tania Forster-Carneiro, Jason P. Hallett
Summary: This review discusses the recent advances of biocompatible ionic liquids (Bio-ILs) in various fields of chemistry, including the production of renewable commodities, approaches in catalysis, and the pharmaceutical field. With a focus on negligible toxicity, biocompatibility, straightforward preparation, and sustainability, Bio-ILs show great potential as green and sustainable compounds.
Article
Chemistry, Multidisciplinary
Daniel Schroeder, Frederik Philippi, Daniel Schroeder, Bernd Morgenstern, Andrew J. P. White, Marlon Jochum, Tom Welton, Christopher W. M. Kay
Summary: Traditional room temperature ionic liquids typically contain asymmetric organic cations, but the synthesis and purification of such cations are more demanding. This study introduces novel room temperature ionic liquids with formally symmetric cations and anions, achieved by incorporating ether-containing side chains that increase configurational entropy. The research challenges the long-standing paradigm that at least one asymmetric ion is required for ionic liquids to be molten at room temperature, and offers simpler design pathways for these materials.
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
