Article
Engineering, Chemical
Dawei Fang, Li Li, Jialin Miao, Peizhen Gao, Yuxin Zhang, Mei Hong, Jin Liu, Jie Wei
Summary: This study synthesized and characterized three ionic liquids and investigated their properties in binary systems with acetonitrile. The results indicate strong interactions, mainly ion-dipole interactions, between the ionic liquids and acetonitrile. The physical properties such as thermal expansion coefficient, excess molar volumes, and refractive index deviations were calculated and analyzed using the Redlich-Kister equation.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Physical
Kazuki Yoshii, Takuya Uto, Takakazu Onishi, Daichi Kosuga, Naoki Tachikawa, Yasushi Katayama
Summary: This study investigated the physicochemical properties of room temperature ionic liquids (RTILs) with different ether oxygen atoms through experimental and computational approaches. The results show that the position and number of ether oxygen atoms have a significant impact on the viscosity and transport properties of RTILs, providing valuable insights for the design of functionalized RTILs for various applications.
Article
Chemistry, Physical
O. Palumbo, F. Trequattrini, A. Cimini, A. Tsurumaki, M. A. Navarra, A. Paolone
Summary: The study investigates the intra- and intermolecular interactions in ether-functionalized ionic liquids through infrared spectroscopy measurements, finding that the trans conformer of the FSI anion is more stable than the cis conformer and there is evidence of hydrogen bonding between the anion's O atom and the closest H atoms on the cation. The results suggest that such highly directional interactions are more observable in ether-functionalized samples, particularly those containing FSI as an anion.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Chemistry, Physical
Qingshan Liu, Jiamin Chu, Xiaoxi Yang, Yulu Huang, Mingxing Zhao, Qige Zheng, Yanxia Qi
Summary: The densities of two functionalized ionic liquids with different ether solvents were measured, and apparent molar volumes were calculated at diluted concentrations. The effects of ether and methyl groups on the density and apparent molar volume were discussed, and the RRM equation was used for fitting. The infinite dilution apparent molar volumes, limiting apparent molar expansibility, and thermal expansion coefficients were obtained and discussed.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Polymer Science
Praveenkumar Sappidi, Xiaoyang Liu, Kathryn E. O'Harra, Jason E. Bara, C. Heath Turner
Summary: Molecular dynamics simulations and complementary experiments were used to study the inter- and intramolecular structures and conformational properties of imidazolium ionenes in an ionic liquid. Different chemical and structural variations of the polymers were found to affect their internal interactions and interactions with surrounding molecules, resulting in changes in chain flexibility and alignment of imidazolium groups. The concentration of alkyl groups and polymer architecture also play important roles in determining the polymer structure and properties.
Article
Chemistry, Physical
Salhah H. Alrefaee
Summary: Through DFT computational study, it was found that imidazolium and pyridinium based ionic liquids exhibit good anticorrosive potential, with corrosion inhibition performance depending on the nature of alkyl groups and halide ions. Among the studied ionic liquids, certain compounds were found to show the best corrosion inhibition performance in both imidazolium and pyridinium based categories.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Junyuan Hua, Jintao He, Hongchang Pei, Xiaohua Ma, S. Ranil Wickramasinghe, Jianxin Li
Summary: The worldwide demand for lithium is growing rapidly. Extracting lithium from saltlake brines with low concentration and high Mg/Li ratio remains challenging. In this study, a supported ionic liquid membrane contactor was developed for high-efficiency lithium recovery. The contactor showed excellent Li+ mass transfer performance, providing an effective solution for selective separation of Mg/Li and utilization of lithium resources in salt lake water.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Jian Wang, Yuao Li, Ning Wei, Xiguang Chen, Yingying Zuo, Jing Tong
Summary: This study investigated the properties of 1-(4-methoxybutyl)-3-methylimidazolium glycine, 1-(4-methoxybutyl)-3-methylimidazolium alanine, and 1-(4-methoxybutyl)-3-methylimidazolium threonine with DMSO binary mixtures and systematically studied the variation trends of excess molar volume, excess molar surface Gibbs energy, and Gibbs energy of activation for viscous flow. The interaction between ether-functionalized ionic liquids and solvent molecules in binary mixtures was also examined.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Asyraf Hanim Ab Rahim, Normawati M. Yunus, Wan Suzaini Wan Hamzah, Ariyanti Sarwono, Nawshad Muhammad
Summary: The study focuses on enhancing the dissolution efficiency of lignocellulosic biomass by synthesizing new ether-functionalized ILs with low viscosity values. Among these ILs, MOE-MImCl stands out as having the lowest viscosity and shows potential as a powerful solvent for biomass dissolution. Optimization research using response surface methodology suggests that maximum biomass dissolution can be achieved under specific parameters such as biomass loading, sonication amplitude, and duration.
Article
Chemistry, Physical
Onajite T. Diejomaoh Abafe, Muhammad Mohsin Azim, Bice S. Martincigh, Annegret Stark
Summary: This study investigates the physicochemical properties of a series of cation-fluorinated ionic liquids and provides experimental evidence for nanosegregation and triphilicity in these liquids. The introduction of fluoroalkyl chains enhances hydrogen bond interactions between anions and cations and leads to structural rearrangements. The study also demonstrates the use of a group contribution method to predict the density of the liquids.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Zhenguo Zhang, Jiahui Ren, Jingmei Xu, Lingxin Meng, Pengyun Zhao, Hao Wang, Zhe Wang
Summary: By introducing the phosphotungstic acid-ionic liquid modified MIL100(Fe) into polymer matrices, hybrid membranes with enhanced proton conductivity, mechanical properties, and dimensional stabilities were prepared.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Shahid Hussain, Haifeng Dong, Shaojuan Zeng, Muhammad Umair Ahmad, Farooq Khurum Shehzad, Hui Wu, Yanqiang Zhang
Summary: In this study, ionic liquids with good biodegradability and low viscosity were synthesized using ether functionalized pyridinium ion [E1Py] as cation and ions containing cyano groups as anions, showing enhanced CO2 absorption capacity with increased cyano groups in ionic liquids. The physiochemical properties of these synthesized ionic liquids were characterized, and the CO2 absorption was systematically studied, with thermodynamic properties such as enthalpy, entropy, and Gibbs free energy also calculated.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Yue Zhao, Chun Guo, Wenqing Wu, Jing Tong
Summary: Two hydroxyl functionalized ionic liquids were synthesized and characterized in this study. The influence of anionic structure on the physical properties and thermodynamic behavior of the ionic liquids was investigated.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2023)
Article
Materials Science, Multidisciplinary
Kathryn O'Harra, Irshad Kammakakam, Pravin Shinde, Chandan Giri, Yi Tuan, Enrique M. Jackson, Jason E. Bara
Summary: This work presents the synthesis and characterization of a novel imidazolium ionene containing aromatic ether-ketone-ether linkages inspired by poly(ether ether ketone) (PEEK). The PEEK ionene exhibited unique properties, including enhanced membrane performance and improved processability compared to conventional PEEK. Its potential utility was demonstrated in gas separation membranes and 3D printing applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Sukanya Das, Niharika Kashyap, Sangeeta Kalita, Debanga Bhusan Bora, Ruli Borah
Summary: Twelve N-SO3H functionalised ammonium and imidazolium based Bronsted acidic ionic liquids with varying anions were synthesized and characterized. The effects of different cations and anions on the properties of the ILs were studied. The conductivity of the ILs in different solvents was measured and correlated with solvatochromic parameters of the solvents. The polarity of the ILs was studied using fluorescence emission spectroscopy. The electrochemical stability of the ILs in different solvents was determined. Among the four types of anions, CF3COO(- )and Cl- were found to have higher thermal stability.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Junkai Zhao, Daina Wei, Jianjun Wang, Kaimeng Yang, Zhaolong Wang, Zhengjian Chen, Shiguo Zhang, Ce Zhang, Xiaojing Yang
Summary: In this study, a three-dimensional self-healing binder (PVA + LB) composed of polyvinyl alcohol and lithium metaborate solution is proposed to improve the cycle stability of Si-based lithium-ion batteries. The use of PVA + LB as a binder results in maintained reversible capacity and excellent electrochemical performance of silicon electrodes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yang Xu, Xueao Jiang, Zhaoen Liu, Zhengjian Chen, Shiguo Zhang, Yan Zhang
Summary: In this study, novel ionogels were designed by in situ UV radiation-induced chemically crosslinked polymerization without additional lithium salt. The obtained ionogels exhibit nonflammability, favorable thermal and mechanical features, high ionic conductivity, and interestingly adhesive ability with the Li anode.
JOURNAL OF POWER SOURCES
(2022)
Article
Polymer Science
Lei Wu, Yafei Guo, Guoqiang Kuang, Yi Wang, Hua Liu, Yue Kang, Tian Ma, Yijie Tao, Kaibing Huang, Shiguo Zhang
Summary: In this work, four high-performance electrochromic polymers based on fused thienothiophene derivative or indacenodithieno[3,2-b]thiophene and 3,4-dialkyloxythiophene derivative were successfully synthesized via direct arylation random polymerization. These polymers exhibit colored-to-highly transmissive electrochromic performance with high optical contrast, fast switching response, good stability, and high coloration efficiency.
Article
Multidisciplinary Sciences
Jun Zhang, Wenxiang Wang, Yan Zhang, Qiang Wei, Fei Han, Shengyi Dong, Dongqing Liu, Shiguo Zhang
Summary: Low-molecular-weight adhesives possess unique features compared to polymer adhesives. This study demonstrates an ionic liquid-based adhesive with high adhesion strength by introducing an IL moiety into a Y-shaped molecule replete with hydrogen bonding interactions.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Da Yu, Zhaohui Ma, Zhaoen Liu, Xueao Jiang, Hussein A. Younus, Xiwen Wang, Shiguo Zhang
Summary: The introduction of a small amount of nonflammable and nonvolatile ionic liquids (ILs) into the poly(ethylene oxide)/ Li7La3Zr2O12 (LLZO) composite solid-state electrolytes (SSEs) improves the interfacial resistance between the electrode and SSEs, increases the ionic conductivity, and enhances the compatibility with high voltage cathode and Li metal anode. The solid-state LiFePO4||Li cell using PEO/LLZO@ [Py14]TFSI (PLP) SSEs exhibits high capacity, Coulombic efficiency, and cycle stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Dandan Yu, Wen Luo, Hongfei Gu, Kexin Li, Junhui Liang, Huayu Chen, Qingsheng Wang, Da Chen, Yuexiang Huang, Pavel Novikov, Anatoliy A. Popovich, Laishun Qin
Summary: Researchers have successfully designed a high-capacity and high-rate electrode material, nitrogen and phosphorus-codoped porous carbon nanofibers encapsulated subnano-sized tellurium (Te@N,P-codoped PCNFs), for potassium-ion storage. The study has revealed the multi-step transformation process and the effectiveness of heteroatoms codoping in immobilizing tellurium and preventing its detachment from the electrode. This well-designed electrode exhibits high energy density and superior cycling performance, providing new insights for tellurium chemistry manipulation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yincai Yang, Feng Wang, Youwen Chen, Changmiao Chen, Shiguo Zhang, Zhen-Qiang Yu, Chak-Tong Au, Shuang-Feng Yin, Renhua Qiu
Summary: In this study, a simple and efficient method was described to fabricate C@MoSe2@CNT composites as anode materials for sodium-ion batteries. Commercially available and cheap carbon nanotubes (CNT) were used as the conductive network. Molybdenum selenide (MoSe2) was in-situ-synthesized from Mo-ethylene glycol (PEG, M-n & AP; 200) complexes, which grew discontinuously along the CNT and provided multiple channels for Na+ insertion. The addition of PEG-C resulted in a thin carbon coating layer to enhance stability. The C@MoSe2@CNT composite exhibited improved electrochemical performance compared to pure MoSe2, with a decreased Na+ diffusion barrier and enhanced reversibility of Na+ storage.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Wei Zhang, Yan Zhang, Wenpeng P. Ni, Shiguo G. Zhang
Summary: Protic ionic liquids and salts (PILs/PSs), generated from the neutralization of organic bases with protonic acids, can serve as economical and versatile small-molecule carbon precursors, leading to carbon materials with enhanced yield, increased nitrogen content, improved graphitic structure, robust thermal stability against oxidation, and superior conductivity.
Article
Chemistry, Physical
Junkai Zhao, Kaimeng Yang, Jianjun Wang, Daina Wei, Zhaoen Liu, Shiguo Zhang, Wen Ye, Ce Zhang, Zhaolong Wang, Xiaojing Yang
Summary: Silicon/carbon composites with N, P codoped carbonaceous framework and carbon-coated silicon were prepared using expired milk powder as a carbon source. The carbon skeleton and shell improved the conductivity of silicon, stabilized the solid electrolyte interfaces, and alleviated the volume expansion of silicon. The composite electrodes showed excellent cycling stability and rate capability, with reversible capacity maintained at 587.3 and 731.2 mAh g-1 after 1000 charge/discharge cycles for FPC@Si and NPC@Si, respectively.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Hussein A. Younus, Nazir Ahmad, Mohammed Al-Abri, Rashid Al-Hajri, Shiguo Zhang
Summary: The molecular nature and structure of the real catalyst are important in homogeneous catalysis. In water oxidation catalysis, catalyst transformation is usually associated with catalyst decomposition and the generation of nanostructured materials. Recent breakthroughs have shown that the electrodeposits in this process can be molecular in nature instead of metal oxides. This perspective highlights examples of electrodeposited metal-organic species in water oxidation catalysis and discusses the transformation of heterogenized molecular catalysts.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Mingnan Li, Yang Gao, Da Yu, Zewei Hu, Zhaoen Liu, Xiwen Wang, Qunhong Weng, Yufang Chen, Yan Zhang, Shiguo Zhang
Summary: A concentrated sulfone electrolyte immobilized with boron nitride (BN) as a gelator via grinding produced a BN-gel with high electrochemical stability, nonflammability, Li+ conductivity, and modulus. The BN-gel suppresses Al corrosion and promotes the formation of a robust solid-electrolyte interface (SEI), protecting the current collector and preventing Li dendrite growth. LMBs based on LiFePO4 (LFP) and high-voltage Li(Ni0.8Co0.1Mn0.1)O2 (NCM) cathodes demonstrate excellent battery performance at room and high temperatures.
ENERGY STORAGE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Ying Liu, Biao Wang, Lei Wu, Lulu Huang, Lu Lin, Li Xiang, Dongqing Liu, Shiguo Zhang, Chenguang Zhu, Yijie Tao, Dong Li, Anlian Pan
Summary: This study proposes a new optoelectronic neuromorphic architecture by integrating an electrochromic device and a perovskite photodetector, which exhibits visual synaptic functionalities. The visual synaptic function of the device can be modulated by adjusting the intensity and wavelength of external light signals, improving the device's information processing capability and image recognition accuracy.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jinyue Shi, Cheng-wei Kao, Jiao Lan, Kang Jiang, Ming Peng, Min Luo, Ying-Rui Lu, Shiguo Zhang, Yongwen Tan
Summary: In this study, a bifunctional nanoporous Pd-Ir alloy catalyst was fabricated using an alloy-surface recombination strategy for water splitting in acidic media. The optimized nanoporous Pd50Ir50 alloy exhibited high-efficiency and durable electrocatalytic activity towards OER and HER in 0.5 M H2SO4, with 83 and 5 mV lower overpotential than the state-of-the-art Ir/C and Pt/C for OER and HER, respectively. Importantly, the nanoporous Pd50Ir50 catalyst, as both the cathode and anode catalyst, showed remarkable performance in the water splitting electrolyser, comparable to the commercial electrolyser with paired Pt/C and Ir/C catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Bihua Chen, Shiguo Zhang, Yan Zhang
Summary: In this study, a poly(ionic liquid) catalyst with unique adsorption-swelling ability towards epoxides was synthesized through free radical polymerization. The catalyst showed superior CO2 cycloaddition performance under atmospheric pressure and cocatalyst-/metal-/solvent-free conditions. The adsorption-swelling property of the catalyst was controllable, reversible, and widespread, allowing for efficient and selective reaction. The catalyst also exhibited good reusability and stability after multiple cycles. This work provides new insights for improving CO2 cycloaddition activity and guides the design of efficient poly(ionic liquid) catalysts for atmospheric CO2 conversion.
Article
Chemistry, Physical
Zewei Hu, Zhixiao Liu, Bin Huang, Yang Gao, Fei Song, Hussein A. Younus, Xiwen Wang, Shiguo Zhang
Summary: In this study, MXene-supported transition metal nanoparticle (TMNPs@MXene) composites were developed as efficient catalysts for the sulfur reduction reaction (SRR) in lithium-sulfur (Li-S) batteries. Among the TMNPs@MXene composites, the CoNPs@MXene composite exhibited the highest SRR electrocatalytic activity, leading to higher capacity and rate capability in Li-S batteries. Theoretical calculations revealed the reasons behind the excellent SRR activity of the CoNPs@MXene composite.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)