Article
Chemistry, Physical
Sergiy Rogalsky, Oksana Tarasyuk, Alina Vashchuk, Oleg Dzhuzha, Tetiana Cherniavska, Stanislav Makhno
Summary: This research developed low-cost proton-conducting electrolytes for fuel cells operating at high temperatures by preparing two room temperature protic ionic liquids (PILs), IM-DBP and IM-BEHP. The synthesized PILs were optimized using density functional theory and showed hydrogen bonding between the cation and anion. Both PILs exhibited low glass transition temperatures, high thermal degradation points, and viscosity that decreased with increasing temperature. The ionic conductivity of the PILs reached the desired level above 140 degrees C. The obtained results suggest that imidazolium dialkyl phosphates can be used as proton conducting electrolytes for medium temperature fuel cell applications.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Liudmila E. Shmukler, Irina Fedorova, Yuliya A. Fadeeva, Matvey S. Gruzdev, Liubov P. Safonova
Summary: This study focuses on the investigation of a series of protic ionic liquids (PILs) with imidazolium and alkylimidazolium cations and analyzes the effects of anion nature and alkyl radical length in the cation structure on thermal and transport properties. The results show that the higher thermodynamic stability of an ion pair increases the PIL decomposition temperature. The melting points of salts decrease as the alkyl radical length in the cation becomes longer, indicating weaker ion-ion interaction in the ion pairs. A comparative analysis between protic ILs and corresponding ILs with the same radical in the cation structure and the same anion has been performed, suggesting that lower melting points of ILs with 1R3MeIm cations result from the weakening of both the ion-ion interaction and the hydrogen bond.
Article
Biochemistry & Molecular Biology
Eduardo Maurina Morais, Alexander Idstrom, Lars Evenaes, Anna Martinelli
Summary: The dynamical properties of four protic ionic liquids containing ethyltriazolium and ethylimidazolium cations were investigated with triflate and bistriflimide anions. The transport properties were strongly influenced by the cation nature, with the ethyltriazolium cation resulting in slower dynamics. The fragility of the ionic liquids was estimated to fall within the range of very fragile glass-forming materials.
Article
Polymer Science
Arfat Anis, Manawwer Alam, Abdullah Alhamidi, Ravindra Kumar Gupta, Mohammad Tariq, Saeed M. Al-Zahrani
Summary: Different methanesulfonate-based protic ionic liquids (PILs) were synthesized and characterized. The diethanolammonium-methanesulfonate-based PIL was used to prepare proton-conducting polymer electrolyte membranes (PEMs) for high-temperature fuel cell application. The prepared PEMs showed good thermal stability and proton conductivity.
Article
Chemistry, Multidisciplinary
Zhiwei Liu, Beibei Li, Ying Dan Liu, Yongri Liang
Summary: In this study, the integration of bending actuation and capacitance pressure self-sensing is achieved in polyvinyl chloride (PVC) gels by adding a plasticizer and imidazolium type ionic liquids (ILs). The results show that the bending actuation performance and sensing behavior are influenced by the migrability of movable ions from ILs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Saffron J. Bryant, Stuart J. Brown, Andrew Martin, Radhika Arunkumar, Rekha Raju, Aaron Elbourne, Gary Bryant, Calum J. Drummond, Tamar L. Greaves
Summary: The study found that protic ionic liquids have potential as effective cryoprotective agents, with ethylammonium acetate showing promising results and being safer than the common cryoprotectant, dimethylsulfoxide. The results of this research will inform the development of a suite of potential new ionic liquid-based cryoprotectants that could potentially allow the cryopreservation of new cell types.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Sudeshna Sen, Sean E. Goodwin, Pedro Verdia Barbara, Graham A. Rance, Dominic Wales, Jamie M. Cameron, Victor Sans, Mohamed Mamlouk, Keith Scott, Darren A. Walsh
Summary: The use of electrically charged, polymerized ionic liquids (polylLs) for developing gel-polymer electrolytes shows promising potential, with polyIL/IL GPEs demonstrating superior electrochemical and thermal stability and up to six times greater conductivity compared to materials based on neutral hosts. The distribution of ionic liquids within the polymers influences the properties of the gel electrolytes, and 3D printing of polyIL/IL gels has been successfully demonstrated in this study as a proof-of-concept.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Energy & Fuels
Saeid Faraji, Hemayat Shekaari, Mohammed Taghi Zafarani-Moattar, Masumeh Mokhtarpour
Summary: Energy storage chemicals, such as ionic liquids, have potential for thermal energy storage due to their thermophysical properties. In this project, three protic ionic liquids were synthesized and evaluated for thermal energy storage. The ionic liquid 2-hydroxyethylammonium lactate showed higher heat capacity and thermal conductivity, making it a suitable candidate for thermal energy storage.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Shunlin Zhang, Yuxin Xie, Rosie J. J. Somerville, Farzaneh Fadaei Tirani, Rosario Scopelliti, Zhaofu Fei, Dunru Zhu, Paul J. J. Dyson
Summary: This study reports a new family of proton conductors based on MIL-101 and protic ionic liquid polymers (PILPs) containing different anions. The PILP@MIL-101 composites maintain the nanoporous cavities and water stability of MIL-101, while providing much-improved proton transport. The PILP@MIL-101 composite with HSO4- anions shows superprotonic conductivity (6.3 x 10(-2) S cm(-1)) at 85 degrees C and 98% relative humidity.
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, Multidisciplinary
Iqbaal Abdurrokhman, Anna Martinelli
Summary: Binary mixtures of two protic ionic liquids, [C(2)HIm][TfO] and [C(2)HIm][TFSI], show interesting phase behavior and ionic conductivity as the composition changes. The addition of [C(2)HIm][TFSI] to [C(2)HIm][TfO] leads to suppression of phase transitions, resulting in a wide temperature range of the liquid state. The alteration of cation-anion interactions in the mixtures is reflected in changes in vibrational spectroscopy and melting temperature, indicating potential for applications in devices operating at extreme temperatures.
FRONTIERS IN CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Ryota Tamate, Takeshi Ueki
Summary: Ion gels are polymer gels with a three-dimensional network filled with an ionic liquid, and they have attracted considerable attention in fields like energy and biotechnology due to their excellent properties. In this review, recent developments in functional ion gels that can modulate their physical properties in response to environmental conditions, such as stimuli-responsive and self-healing ion gels, are outlined.
Article
Chemistry, Physical
Timo Stettner, Andrea Balducci
Summary: The development of new and especially safer electrolytes is crucial for modern electrochemical energy storage devices, with ionic liquids showing promise as a potential solution. This article critically compares protic ionic liquids (PILs) with aprotic ionic liquids, and analyzes their use as electrolytes in supercapacitors and batteries. The manuscript also discusses the challenges and outlook for improving and expanding the use of PILs in energy storage devices.
ENERGY STORAGE MATERIALS
(2021)
Article
Polymer Science
Fan Yang, Meng Zhao, Darren Smith, Peggy Cebe, Sam Lucisano, Thomas Allston, Thomas W. Smith
Summary: This study describes the synthesis, polymerization, and ion exchange of 1-butyl-2,3-dimethyl-4-vinylimidazolium triflate to produce a series of 1-butyl-2,3-dimethyl-4-vinylimidazolium polymers. Regardless of the anion's nature, substitution at the 2-position of the imidazolium moiety significantly increases the distance between the anion and cation.
Article
Chemistry, Physical
Wenxu Zhang, Shuting Feng, Mingjun Huang, Bo Quo, Keisuke Shigenobu, Livia Giordano, Jeffrey Lopez, Ryoichi Tatara, Kazuhide Ueno, Kaoru Dokko, Masayoshi Watanabe, Yang Shao-Horn, Jeremiah A. Johnson
Summary: PolyFAST salts with electron-withdrawing side chains and enhanced distance between anionic sites show superior performance compared to traditional materials, providing a promising pathway towards high-performance PEO-free SIC-PEs.
CHEMISTRY OF MATERIALS
(2021)
Article
Engineering, Chemical
Collin A. Dunn, Zhangxing Shi, Rongfei Zhou, Douglas L. Gin, Richard D. Noble
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Thermodynamics
Yuki Kohno, Takashi Makino, Mitsuhiro Kanakubo
FLUID PHASE EQUILIBRIA
(2019)
Article
Engineering, Chemical
Sarah M. Dischinger, James Rosenblum, Richard D. Noble, Douglas L. Gin
JOURNAL OF MEMBRANE SCIENCE
(2019)
Article
Chemistry, Physical
Xunda Feng, Kohsuke Kawabata, Matthew G. Cowan, Gregory E. Dwulet, Kristof Toth, Lucas Sixdenier, Amir Haji-Akbari, Richard D. Noble, Menachem Elimelech, Douglas L. Gin, Chinedum O. Osuji
Article
Engineering, Chemical
Gregory E. Dwulet, Sarah M. Dischinger, Michael J. McGrath, Andrew J. Basalla, John J. Malecha, Richard D. Noble, Douglas L. Gin
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Engineering, Chemical
Michael J. McGrath, Nicholas Patterson, Bryce C. Manubay, Samantha H. Hardy, John J. Malecha, Zhangxing Shi, Xiujun Yue, Xing Xing, Hans H. Funke, Douglas L. Gin, Ping Liu, Richard D. Noble
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Correction
Engineering, Chemical
Michael J. McGrath, Nicholas Patterson, Bryce C. Manubay, Samantha H. Hardy, John J. Malecha, Zhangxing Shi, Xiujun Yue, Xing Xing, Hans H. Funke, Douglas L. Gin, Ping Liu, Richard D. Noble
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Yuki Kohno, Mitsuhiro Kanakubo, Masao Iwaya, Yo Yamato, Takashi Makino
Summary: This paper presents a series of liquid materials that can be used as high-performance separation membranes in direct air capture. By mixing two ionic liquids, the CO2 absorption rates, solubilities, and enthalpies were improved compared to single ionic liquids. The chemisorbed species formed when one of the ionic liquids reacted with CO2 was elucidated. Supported IL membranes composed of the mixed ionic liquids showed higher CO2 permeability and CO2/N2 selectivity compared to known facilitated transport membranes.
Article
Chemistry, Multidisciplinary
Hiroi Sei, Yu Nagai Kanasaki, Kouki Oka, Norimitsu Tohnai, Yuki Kohno, Takashi Makino
Summary: Amino acid ionic liquids (AAILs) are considered as environmentally friendly alternatives to current CO2-sorptive materials due to the availability of amino acids from renewable sources. The stability of AAILs, especially towards O(2), is crucial for their wide applications including direct air capture. This study investigates the accelerated oxidative degradation of tetra-n-butylphosphonium l-prolinate ([P-4444]-[Pro]), a commonly studied AAIL, and demonstrates the fabrication of supported IL membranes composed of degraded [P-4444]-[Pro] that retain CO2 permeability and CO2/N-2 selectivity values.
Article
Polymer Science
Sajith Kaniyadan Baiju, Brent James Martin, Rayleen Fredericks, Harikrishnan Raghavan, Karnika De Silva, Matthew Greig Cowan
Summary: This research tests the efficacy of phosphonium ion gels in preventing biofouling and examines the impact of hydrophobicity and biocide concentration on anti-fouling performance. The study finds that formulations with higher hydrophobicity exhibit better anti-fouling performance, while the presence of copper(II) biocide negatively affects it. Furthermore, no correlation is observed between antimicrobial activity and anti-fouling performance.
Article
Materials Science, Multidisciplinary
Savannah Egerton, Claudia Sim, Heon E. Park, Mark P. Staiger, Komal M. Patil, Matthew G. Cowan
Summary: Tuning the coefficients of thermal expansion is crucial for controlling performance and prolonging the lifespan of precision equipment. This study introduces a strategy of creating 3-component composite materials to achieve this goal. The composite materials exhibit a significantly larger reduction in thermal expansion coefficient compared to other fillers, while maintaining a Young's modulus comparable to low density polyethylene. This three-component design strategy shows promise for the development of thermoplastic materials with controlled coefficients of thermal expansion.
MATERIALS ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Yuki Kohno, Takashi Makino
Summary: A tri-n-octyl(sulfobutyl)phosphonium-based ionic liquid catalyst forms a triphasic system with glycerol and oleic acid, effectively catalyzing their condensation reaction. Additionally, a monomer structurally analogous to the catalyst is co-polymerized with divinylbenzene to create a cross-linked polyelectrolyte that promotes the same reaction.
REACTION CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Ahmed H. Elashkar, Gavin S. Hedley, Omid T. Qazvini, Shane G. Telfer, Matthew G. Cowan
Summary: The publication discusses the research progress in the field of gas adsorption and separation for porous solids over the past 20 years, pointing out the lack of a unified resource for comparing and analyzing material properties. It also introduces a new visualization method of upper and lower bounds for gas separation adsorbents in the material design process.
CHEMICAL COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Xicheng Jia, Thomas D. Bennett, Matthew G. Cowan
Article
Chemistry, Multidisciplinary
Yuki Kohno, Takashi Makino, Mitsuhiro Kanakubo
REACTION CHEMISTRY & ENGINEERING
(2019)
