Article
Polymer Science
Chenming Li, Rajesh Bhandary, Anja Marinow, Stephanie Bachmann, Ann-Christin Poeppler, Wolfgang H. Binder
Summary: This study investigates the influence of an ionic liquid environment on the stability of ureidopyrimidinone hydrogen bonds. The results show that while the hydrogen bonds are sensitive to high temperatures, they remain highly stable in the presence of the ionic liquid.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Polymer Science
Chenming Li, Rajesh Bhandary, Anja Marinow, Dmitrii Ivanov, Mengxue Du, Rene Androsch, Wolfgang H. Binder
Summary: In this work, a novel electrolyte with self-healing properties was synthesized using polymeric ionic liquids and quadrupolar hydrogen-bonding moieties. The electrolyte exhibited excellent thermal stability and ionic conductivity, with the molecular weight influencing the ultimate strength and self-healing efficiency.
Article
Chemistry, Physical
Evangelos Drougkas, Michael Bache, Xiaodong Liang, Nicolas von Solms, Georgios M. Kontogeorgis
Summary: This work aims to evaluate the application of infrared spectroscopic methods in studying the structural properties of liquid alcohols and discusses the methodologies for extracting free hydroxyl groups/monomer fractions in 1-alcohol solutions. The results show a discrepancy in the data of saturated liquid methanol and ethanol, indicating a stronger association of methanol at higher temperatures compared to ethanol.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Environmental Sciences
Jingyu Ren, Jie Li, Lei Lv, Jian Wang
Summary: Ionic liquids (ILs) are a promising type of extractant for removing undesirable organics, and regenerated successfully through ozonation in this study. Phenol was efficiently degraded in [Bmim]BF4 by ozone treatment, demonstrating ILs' stability and recycling capability. The hydrogen bonds between [Bmim](+) and O-3 enhanced phenol degradation efficiency by increasing nucleophilicity, showing ILs' potential for synergistic removal of organics.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Jaewan Im, Sanghun Lee, Insol Jo, Jeong Won Kang, Ki-Sub Kim
Summary: This study investigated the use of ionic liquids as alternatives to highly toxic organic solvents for dissolving cellulose, hemicellulose, and lignin biomass. The experimental results showed that the biomass treated with ionic liquids had low crystallinity and decreased pyrolysis temperature. However, the pyrolysis temperature of the biomass increased again after washing the ionic liquid with an antisolvent, indicating the restoration of cellulose hydrogen bonding.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
I. V. Fedorova, M. A. Krestyaninov, L. P. Safonova
Summary: By analyzing the quantum-chemical calculations and molecular dynamics simulations, the study reveals the impact of terminal hydroxyl groups in the cation on the liquid structure of protic ionic liquids (PILs).
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Sascha Gehrke, Promit Ray, Timo Stettner, Andrea Balducci, Barbara Kirchner
Summary: The study found that at very low concentrations, water is well dispersed and best characterized as shared solvent molecules; at higher concentrations, water forms larger aggregates and increasingly approaches a bulk-like state; the rotational and librational dynamics of water molecules become faster with increasing concentration, while translational dynamics become slower, and all dynamics are faster with higher temperature.
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
Engineering, Environmental
Saba Goharshenas Moghadam, Ehsan Bakhshandeh, Reza Jafari, Gelareh Momen
Summary: This study investigates the use of room temperature ionic liquids (RT-ILs) in coatings for anti-icing applications. The results show that coatings containing ILs significantly reduce the sliding angle and contact angle hysteresis, and form a self-lubricating quasi-liquid layer at lower temperatures, leading to a decrease in ice adhesion strength. Solid-state nuclear magnetic resonance spectroscopy confirms the presence of nonfrozen water molecules at the interface.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Malgorzata Pajak, Katarzyna Hubkowska, Andrzej Czerwinski
Summary: The mixtures of selected protic and aprotic ionic liquids with their parent superacids were used as electrolytes for hydrogen electrosorption in thin Pd films. The properties of these mixtures were characterized using electrochemical and physicochemical methods, demonstrating their potential use as electrolytes in hydride/protonic systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Sepideh Kalhor, Alireza Fattahi
Summary: The study focuses on designing new carboxylate-based ionic liquids containing OH and CF3 groups, and finds that the properties of these ILs are heavily influenced by the presence of these groups. OH stabilizes the negative charge of the anion via intramolecular hydrogen bonds, while CF3 stabilizes it through the electron withdrawing effect, affecting physical and chemical properties like melting point and density.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Polymer Science
Yuanming Zhai, Yong Luo, Xiaoyan Wang, Chunchun Zhang, Pengchi Deng, Hanjiao Chen, Rongchun Zhang, Ruiying Bao, Yicun Zhou, Mingbo Yang, Wei Yang
Summary: Polymer blending is a common method to incorporate the excellent physical/chemical properties of individual polymer components, but there are limited atomic-level insights into the improvement of mechanical properties. In this study, solid-state nuclear magnetic resonance (NMR) is used to understand the molecular origin of mechanical enhancement in PA6/PK blends. The results show that the superior performance of PA6/PK blend is attributed to the enhanced interfacial adhesion and interconnected interphase via hydrogen bonds.
Article
Multidisciplinary Sciences
Hadrian Montes-Campos, Trinidad Mendez-Morales, Luis Miguel Varela, Manuel Angel Ortuno
Summary: In this study, classical molecular dynamics simulations were performed to investigate the solvent effects on the conversion of glucose and fructose to 5-hydroxymethylfurfural in imidazolium-based ionic liquids. The results identified several parameters that directly control the interactions between the product and the anions, which may affect product separation and undesired side-reactions between HMF molecules. These findings provide guidance for future high-throughput screenings of new and improved ionic liquid media.
ADVANCED THEORY AND SIMULATIONS
(2022)
Article
Chemistry, Multidisciplinary
Huijie Zuo, Xiangjian Chen, Yingli Ding, Liang Cui, Baomin Fan, Li Pan, Kunyu Zhang
Summary: Novel mPEG-ILs were synthesized and studied as green plasticizers for PLA material. Characterization results showed that mPEG-ILs have a significant plasticizing effect on PLA, greatly enhancing its ductility.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Organic
Haotian Lv, Feng Han, Ning Wang, Nan Lu, Zenghong Song, Jian Zhang, Chengxia Miao
Summary: A convenient and environmentally friendly method using acidic ionic liquid as a metal-free catalyst and dimethyl carbonate as a green solvent has been demonstrated for the synthesis of polysubstituted olefins, avoiding the use of toxic solvents and additives and reducing waste production through the construction of new C-C bonds.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.