Article
Polymer Science
Wenwen Xiao, Jiayao Wang, Xin Zheng, Yongjin Li
Summary: In this study, the phase behavior and properties of the PES/IL(BF4) binary blends were systematically investigated. It was found that the sulfone group on PES can form a hydrogen bond with the H atom at the C-2 position of the imidazole ring of ionic liquid, which contributes to the good compatibility between PES and IL(BF4). The blends undergo phase separation with increasing temperature, leading to the enrichment of IL(BF4) and enhanced hydrophilicity while decreasing electrical conductivity.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Physical
Alessio Riccobono, Giuseppe Lazzara, Sarah E. Rogers, Ivana Pibiri, Andrea Pace, John M. Slattery, Duncan W. Bruce
Summary: This study reported the synthesis, liquid crystal, and conductivity properties of a series of 27 salts based on the 5-(4-(alkyloxy) phenyl)-1,2,4-triazol-4-ium cation bearing a perfluoroalkyl chain. The liquid crystal properties were found to be dependent on the anion and the length of the perfluorocarbon chain, while conductivity showed a strong dependence on the anion.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Environmental Sciences
Kuan Shiong Khoo, Wen Yi Chia, Kexin Wang, Chih-Kai Chang, Hui Yi Leong, Muhammad Nasrulhazim Bin Maaris, Pau Loke Show
Summary: This review summarizes the application of ionic liquids in high-temperature proton exchange membrane fuel cells, discusses their advantages when combined with polybenzimidazole, and evaluates and discusses the research development and issues of ILs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Energy & Fuels
Allan L. L. East, Cuong M. Nguyen, Rolf Hempelmann
Summary: This mini-review provides an overview of the literature on the performance of PEMFCs with immobilized ionic liquids as possible electrolytes. The review focuses on papers reporting power and current densities. Despite efforts to design an ionic-liquid-holding membrane that can operate well under non-humidifying conditions above 100?, this goal has not yet been achieved, and reported power densities are still lower than traditional low-temperature fuel cells.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Johannes Sutter, Constantin Haese, Robert Graf, Johannes Hunger
Summary: This study investigates the mechanism of proton transport in protic ionic liquids (PILs) using dielectric relaxation spectroscopy and nuclear magnetic resonance spectroscopy. The results demonstrate the sensitivity of protonation equilibria to the immediate environment of PILs and the influence of these equilibria on proton dynamics. Tuning the composition of PILs can be used to control the contribution of proton transport to charge transport.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Electrochemistry
Keyla Teixeira Santos, Hugo Barbosa Suffredini, Gunther Wittstock, Camilo Andrea Angelucci
Summary: Ionic liquids are considered a new-generation electrolyte for electrochemical devices, forming a liquid-liquid interface with water due to their hydrophobicity. By utilizing the IL-water interface, a membraneless energy generation device combining oxygen reduction and hydrogen oxidation reactions can be constructed, achieving high open circuit voltage and power density at room temperature. The device has potential for improvement in fuel cell power and design.
Review
Chemistry, Multidisciplinary
Karel Asselman, Christine Kirschhock, Eric Breynaert
Summary: Since the 1940s, researchers have been aiming to rationally design zeolites by controlling their synthesis to obtain desired properties. However, the fundamental processes of zeolite synthesis have remained largely unknown. This Account presents recent progress in crystallizing zeolites using hydrated silicate ionic liquids as synthesis media, allowing for the evaluation of the individual impacts of synthesis parameters on zeolite nucleation, growth, and phase selection. The relationship between the characteristics of the synthesis medium and the properties and structure of the crystalline product is elucidated.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Engineering, Chemical
Wei Qi, Junhui He, Mengjie Li, Maolin Zhai, Long Zhao
Summary: Rhenium has important applications in various industries, but its low concentration in the Earth's crust necessitates research on its separation and extraction. This study explored the extraction of rhenium using a demulsification method with an alkyl imidazolium ionic liquid-based microemulsion. Factors such as components of the microemulsion, temperature, acid concentration, and competitive ions were considered. The study found that the components of the microemulsion, alkyl chain length, and acid concentration significantly affected the extraction efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Chao Sun, Yanli Zhang, Yasen Dai, Jiafu Xing, Yajuan Qu, Yinglong Wang, Jun Gao
Summary: Ionic liquids are used as extractants to efficiently and environmentally separate the azeotrope of ethyl acetate and ethanol. Through mechanism analysis, four ILs are selected as extractants and their separation performance is verified through experiments.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Jinsol Kim, Alexander J. Turner, Helen L. Fitzmaurice, Erin R. Delaria, Catherine Newman, Paul J. Wooldridge, Ronald C. Cohen
Summary: Transportation emissions, as the largest sector of greenhouse gas emissions, are a crucial target in reducing overall emissions. The BEACO(2)N project in Berkeley successfully tracked and inferred a 7.6% reduction in vehicular CO2 emissions in the San Francisco Bay Area over the past two years, demonstrating the feasibility of verifying policy-driven reductions using atmospheric observations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Eduardo Iniesta-Lopez, Adrian Hernandez-Fernandez, Yolanda Garrido, Ioannis A. Ieropoulos, Francisco Jose Hernandez-Fernandez
Summary: A new microbial fuel cell technology based on an ionic liquid membrane assembly has been proposed for treating animal slurry. The new low-cost membrane-cathode system achieved high power and efficient removal of organic matter, while simplifying the manufacturing process.
FERMENTATION-BASEL
(2023)
Article
Engineering, Environmental
Xiong Peng, Li Chen, Shujun Liu, Lihua Hu, Jianwei Zhang, Aili Wang, Xiwen Yu, Zongcheng Yan
Summary: The study found that ionic liquid modified cellulose exhibited high adsorption capacity and fast adsorption rate towards p-arsanilic acid. The adsorption process was determined to be multilayer adsorption dominated by the adsorption onto active sites. Interactions between p-arsanilic acid and the adsorbent were mainly through hydrogen bonding and pi-pi interaction to form outer-sphere complexes. The role of weak forces, such as hydrogen bonding, in the adsorption process between organoarsenic and adsorbents was highlighted in this research.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Anqi Zhang, Ran Zhao, Yahui Wang, Jiasheng Yue, Jingjing Yang, Xinran Wang, Chuan Wu, Ying Bai
Summary: Layered manganese dioxide (delta-MnO2) is a promising cathode candidate for aqueous zinc-ion batteries, but the insertion of zinc ions has caused structural deformation, insufficient cycle stability, and limited rate capability. This study proposes a hybrid superlattice structure with improved electrochemical performance through polymer pre-intercalation, demonstrating the synergy of electron entropy stimulation and selective H+ Grotthuss intercalation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Kesar Tandekar, Chandani Singh, Sabbani Supriya
Summary: Compound 1 shows a high proton conductivity value under humidified and low temperature conditions, with water molecules and specific water molecules in the compound responsible for proton transfer in the crystals.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Applied
Koichiro Hojo, Tsukasa Takahashi, Kazumasa Oshima, Takamasa Haji, Yuki Terayama, Hiroshige Matsumoto, Shigeo Satokawa
Summary: The study found that zeolites with a high number of surface silanol groups exhibit higher conductivity in water, indicating the important role of surface silanol groups in increasing the conductivity of zeolite in water. The mechanism of conduction is similar to the Grotthuss mechanism.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)