Defence Technology
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2026
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IF 6.4
Ze Su,Xiaolong Li,Youye Wang,Long Liu,Yanqiang Zhang,Jianguo Zhang,Zhimin Li
Energetic plasticizers are rarely used in HTPB propellants due to compatibility issues; one strategy is usually adopted is to introduce energetic substituents. In this study, the synthesized high-energy ionic liquids were comprehensively characterized, and showed that they possess extremely low melting points (IL-3h, T m = –70 °C), good thermal stability (ILs, T p > 370 °C), and high densities (IL-3a, ρ = 1.637 g/cm 3 ). The high-energy performance exhibited by high detonation velocity ( D v ) and pressure ( D P ) of ionic liquids ( D v : 6600–6800 m/s; D p : 17–19 MPa) contributes to improved specific impulse in propellant formulations, which significantly surpasses that of conventional triethylene glycol dinitrate (TEGDN). Furthermore, HTPB elastomer cured with TDI were plasticized with ionic liquids, and the results of tensile and dynamic mechanical tests were showed that the HTPB elastomer plasticized with ionic liquids had a maximum tensile strength of 0.883 MPa and a maximum elongation at break of 539.2%, which were comparable to DOA ( σ t = 0.587 MPa, ε t = 479.1%). This work provides an innovative approach for the design of energetic ionic liquid plasticizers in HTPB propellants.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Niankun Guo,Tianjing An,Zhaohao Li,Dan Gao,Jiaxi Yang
The chemical absorption and the physical adsorption constitute primary mechanisms in conventional CO 2 capture methods. This work proposes a novel porous ionic liquid synthesized by coupling these two mechanisms to enhance the CO 2 capture performance. Specifically, [TEPA][N-MIm] reacts with CO 2 to form carbamate species, while ZIF-8 nanoparticles are incorporated to construct stable cavity structures within the solution, providing physical adsorption sites for CO 2 . Based on CO 2 capture experiments and bubble dynamics high-speed photography experiments, CO 2 capture processes by [TEPA][N-MIm] consist of three phases: the rapid reaction phase, the slow capture phase, and the stabilization phase. Generally, improving the CO 2 mass transfer performance through methods such as increasing flowrate also enhances the capture performance. However, temperature elevation introduces more complex effects: The chemical reaction rate and the physical solubility exhibit opposing trends, and the CO 2 capture performance varies among different types of PILs. Additionally, when the solution temperature reaches a specific threshold, partial carbamate begins to decompose, leading to the stabilization of the CO 2 capture capacity.
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 32
·44623-44632
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IF 7.8
Yuan Haohang,Ji Yikun,Yang Guoliang,Liu Bin,Wang Yixin,Liu Shujuan,Ye Qian,Zhou Feng
Marine biofouling remains a major challenge for maritime industries, driving the need for low‑toxicity and durable antifouling coatings. Herein, we present a composite hydrogel coating (IL-GLM@Gel) constructed by integrating gallium-based liquid metal (GLM) nanodroplets and a halogenated ionic liquid ([Bmim]·ZnCl 2 ) within a poly(acrylamide-co-acrylic acid) hydrogel matrix. The GLM nanodroplets were first uniformly dispersed and immobilized within the hydrogel via in situ polymerization, followed by solvent exchange to introduce the ionic liquid. The resulting IL-GLM@Gel coating exhibits a densely crosslinked network structure, as indicated by SEM, and demonstrates outstanding synergistic antifouling properties. It achieves antibacterial rates of 96.6% against E. coli and 99.2% against S. aureus , along with algal removal rates of 90.6% for Dunaliella and 98.1% for Porphyridium . The enhanced performance is attributed to the combined effects of Ga 3+ -induced oxidative stress and the membrane disruption caused by the imidazolium cations. Furthermore, the coating displays environmental stability, including a low water swelling ratio (3.7%), tunable mechanical properties (tensile stress up to 0.36 MPa for Fe 3+ -based IL and strain up to 957% for Zn 2+ -based IL), superior water retention, and a low friction coefficient of 0.045. Overall, this work presents a promising strategy for the design of high-performance, multifunctional hydrogel coatings for potential long-term marine antifouling applications.
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高影响因子
ELECTROCHIMICA ACTA
·
2025
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IF 5.6
Jiawei Zhao,Bo Shang,Cuncai Lin,Xingteng Ma,Yilin Wang,Shenglin Qiao,Xin Sui,Kezheng Chen
The utilization of reverse electrodialysis (RED) technology for efficient conversion of salinity-gradient energy represents a promising strategy for advancing green and low-carbon energy development. The key challenge of RED technology lies in the fabrication of high-performance ion exchange membranes that possess both large surface areas and long-term stability. Silk fibroin (SF), characterized by their abundance of negative charges, ease of processability, and robust mechanical properties, make them particularly suitable for use in energy harvesting through ion permeation. However, a critical limitation in the application of SF membranes is the artificial control of their pore size, which constrains their performance and scalability. Herein, we propose a novel approach for fabricating SF membranes with tunable pore sizes by integrating ionic liquid (IL) with SF. Upon immersion in pure water, the IL dissolve, creating ion transport channels within the membrane. The dimensions of these transport channels can be precisely regulated by adjusting the ratio of IL to SF, thereby enabling control over the membrane’s output power density. Under simulated seawater/river water conditions, the resulting SF membrane demonstrates a stable output power density of 9.6 W/m 2 . This straightforward strategy presents a promising approach for enhancing the efficiency of salinity-gradient energy harvesting.
研究领域:
材料科学
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能源技术
·
生物材料
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INDUSTRIAL CROPS AND PRODUCTS
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2025
·
IF 6.2
Panpan Xu,Fengdan Yan,Mengyang Liu,Yanlan Bi,Shangde Sun,Jun Li
Effects of N-methylimidazole hydrogen sulfate, 2-pyrrolidone hydrogen sulfate, N-methyl pyrrolidone hydrogen sulfate, and their -SO 3 H functionalized acidic ionic liquids were comparatively investigated on the dehydration degree of ricinoleic acid (RA) sample and conjugated linoleic acid (CLA) content in the resulting dehydrated ricinoleic acid (DRA) sample. Results showed the -SO 3 H functionalized N-methyl pyrrolidone hydrogen sulfate ([C 3 SO 3 Hnmp]HSO 4 ) had the strongest catalytic activity among the six ionic liquids. Under the optimal conditions (4 % [C 3 SO 3 Hnmp]HSO 4 , 250 °C, and 30 min), the dehydration degree of RA sample reached 98.69 % with 42.57 % of CLA in the resulting DRA sample. Results from nuclear magnetic resonance, Fourier transform infrared spectroscopy, and mass spectrometry indicated the hydroxyl group of RA underwent intramolecular dehydration to form new double bonds; RA sample was randomly dehydrated with both non-conjugated linoleic acid and CLA present in DRA sample. Rheological analysis showed that RA sample had a higher viscosity than DRA sample due to the presence of hydrogen bonds. Thermogravimetric analysis showed RA and DRA samples were thermally stable at up to 250 °C.
研究领域:
食品科学
·
化学工程
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Polymers
·
2020
·Vol. 12
·期 2
·370
·
IF 3.426
Guangyuan Yang,Jialin Yu,Sanwen Peng,Kuang Sheng,Haining Zhang
The design and synthesis of solid sorbents for effective carbon dioxide adsorption are essential for practical applications regarding carbon emissions. Herein, we report the synthesis of composite materials consisting of amine-functionalized imidazolium-type poly(ionic liquid) (PIL) and metal organic frameworks (MOFs) through complexation of amino groups and metal ions. The carbon dioxide adsorption behavior of the synthesized composite materials was evaluated using the temperature-programmed desorption (TPD) technique. Benefiting from the large surface area of metal organic frameworks and high carbon dioxide diffusivity in ionic liquid moieties, the carbon dioxide adsorption capacity of the synthesized composite material reached 19.5 cm3·g−1, which is much higher than that of pristine metal organic frameworks (3.1 cm3·g−1) under carbon dioxide partial pressure of 0.2 bar at 25 °C. The results demonstrate that the combination of functionalized poly(ionic liquid) with metal organic frameworks can be a promising solid sorbent for carbon dioxide adsorption.Keywords:metal organic framework;poly(ionic liquid);carbon dioxide;adsorption;imidazolium;temperature-programmed desorption
研究领域:
材料科学
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环境科学
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CHEMICAL ENGINEERING SCIENCE
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2025
·
IF 4.3
Xiangyi Kong,Yuxin Qiu,Ke Wang,Qian Liu,Kunchi Xie,Hongye Cheng,Zhen Song,Zhiwen Qi
As typical aromatic volatile organic compounds (VOCs), toluene and styrene present significant health and environmental risks. Although ionic liquids (ILs) have emerged as promising absorbents for aromatic VOCs capture, the myriad diversities of ILs and limited experimental data availability pose critical challenges in efficiently identifying optimal candidates. In this work, advanced deep learning (DL) models are developed to predict the infinite dilution activity coefficients ( γ ∞ ) of IL-toluene/styrene systems, which could act as the thermodynamic estimator of absorbent performance. By leveraging the transfer learning strategy, the models are first pre-trained on experimental data from similar system or computational data, then fine-tuned using experimental data points to improve predictive performance. A multi-level screening framework that considers physical and thermodynamic properties, as well as toxicity, is employed to identify favorable ILs from 170 commercially available candidates. Experimental validation and mechanism analysis are conducted to corroborate the excellent absorption performance of screened ILs. This research provides valuable guidance for artificial intelligence-aided design of absorbents towards other VOCs capture.
研究领域:
环境科学
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化学工程
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计算化学
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大气污染控制
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绿色溶剂
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高影响因子
Advanced Optical Materials
·
2025
·
IF 7.2
Yu Cai,Yunqing Li,Renyan Zhang,Changqing Shen,Yunxia Zhou,Xiong Li,Xiangang Luo
Dynamic manipulation of terahertz waves is crucial for advancing rapidly evolving terahertz technologies. Recently, intercalation in 2D materials has emerged as a powerful strategy for tuning their physical and chemical properties, enhancing their potential for terahertz modulation applications. However, the terahertz-band response during intercalation and the underlying optical response mechanisms remain poorly understood. Herein, the tunable terahertz properties of the reduced graphene oxide films are investigated via ionic liquid intercalation and elucidate the associated terahertz response mechanism. The free charge carriers transport characteristics during the intercalation process are extracted using Drude–Smith model. The mechanism behind the terahertz response primarily stems from the intercalation of ionic liquid into the reduced graphene oxide films, resulting in an increase in the number of free carriers responding to terahertz waves. These results provide valuable insights for graphene-based tunable terahertz wave control and open a route toward exploring the intercalation mechanism in 2D materials.
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JOURNAL OF POLYMER SCIENCE
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2025
·
IF 3.6
Jing Xie,Lin Li,Jianlei Qi,Xuehai Wang,Haocheng Sun,Jianzhong Yin
The chemical recycling of polyethylene terephthalate (PET) faces challenges such as low depolymerization efficiency, harsh reaction conditions, and low product selectivity. In this study, 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF 4 ) ionic liquid (IL) was developed as a catalyst for methanolysis, achieving the efficient conversion of PET into the target monomer dimethyl terephthalate (DMT). The effects of temperature, time, IL amount, and methanol quantity on the reaction were systematically investigated. The degree of depolymerization and catalyst stability were systematically evaluated by multiscale characterization (spectroscopy, chromatography, thermal analysis, etc.). Experimental results indicated that when the PET/[Bmim]BF 4 ratio was 6:1 and the PET/methanol ratio was 1:6 (mass ratio), reaction at 200°C for 2 h, PET was completely converted (100%), and the yield of DMT reached 82.26%. [Bmim]BF 4 could be reused more than five times without significant decrease in PET conversion. The kinetic results showed that the reaction was in line with the first-order kinetic model, and the apparent activation energy was about 43.24 kJ/mol. DFT calculations suggested that [Bmim]BF 4 efficiently catalyzed the reaction by lowering the energy barrier of the key transition state. This study provides a solution with both high efficiency and industrial potential for the green chemical recycling of PET. Graphical The methanolysis of polyethylene terephthalate (PET) was catalyzed by 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4) at 200°C for 2 h, achieving PET conversion (100%) and 82% yield of dimethyl terephthalate (DMT).
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Materials Today Energy
·
2025
·
IF 8.6
Fang Wu,Zeyu Yi,Xiaoheng He,Yifan Wang,Yong Xiang,Fei Li,Hong Pan
Silicon anode is subjected to volume changes throughout charge-discharge cycles, and the volume fluctuation can seriously undermine Si electrode structure and hinder continuous ion transport pathway. To address this issue, ionic liquid encapsulated polystyrene microcapsules (IL-MS) with high encapsulation efficiency and sub-micron diameter are synthesized through a PVA-modified solvent evaporation method. The obtained IL-MS can be uniformly dispersed in the Si anode to reconstruct the Li + conduction pathway and enhance its cycling stability. By controlling the core-shell mass ratio and polystyrene concentration during the emulsification process, the IL-MS demonstrate a high encapsulation efficiency of 68 % and their diameters are monodispersed at approximately 1.46 μm. Notably, when the pre-embedded IL-MS in Si anode were ruptured during charging and discharging, the Si anode with IL-MS not only facilitates stress dissipation of Si particles, but also improves the ionic conductivity of Si anode by reconstructing the ionic conduction pathway. As a result, upon reaching 200 cycles at a current intensity of 0.84 A/g, the electrode with 10 wt% IL-MS maintains a capacity of 1732.1 mAh/g, demonstrating an ultra-stable cycling performance. Therefore, pre-embedding the IL-MS in the electrode is an effective strategy for improving the ionic conductivity and the electrochemical performance of Si anodes.
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ACS Sustainable Chemistry & Engineering
·
2019
·
IF 6.97
Shuaiqi Gao,Pengling Zhang,Zhenzhen Wang,Guokai Cui,Jikuan Qiu,Jianji Wang
The emission of SO2 from the combustion of fossil fuels leads to many environmental issues. The incorporation of ionic liquids (ILs) on porous supports to produce supported ionic liquids is an effective technology for SO2 capture. However, blockage of pore channels is one of the main problems of this technology, which results in a substantial decrease of absorption capacity. Herein, a novel type of ionic liquid, 1-methyl-3-(3-triethoxysilylpropyl) imidazolium tetrazolate, functionalized large pore sized 3D mesoporous FDU-12 sorbents has been synthesized through a chemical grafting method. The as-prepared materials are characterized using SAXS, N2 adsorption, TEM, XPS, elements analysis, EDS mapping, and TGA and then the performance of these materials to capture SO2 is studied. The IL@FDU-12 materials are found to exhibit a high absorption capacity of SO2 up to 8.19 mmol SO2/g-sorbent (i.e., 524.2 mg/g) and a fast absorption rate (ca. 6 min is needed to reach equilibrium) at 25 °C and 1 bar since blockage of pore channels is effectively avoided and the IL is highly dispersed in the channels. These materials can also be used for the effective capture of CO2 (1 bar) and low content of SO2 (10%). Moreover, they have excellent thermal stability and can be reused in many absorption/desorption cycles without loss of the high absorption capacity and fast sorption/desorption rate.
研究领域:
环境科学
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材料科学
·
化学工程
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ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Chunxue Gu,Shiyi Zhou,Huimin Gan,Yu Zhao,Jiatong Liu,Ming Ma,Hongwei Chu,Bo Chen
Background Protein extraction from plant leaves is a key step in plant proteomics analysis. However, traditional methods often face challenges, including low efficiency, incomplete protein coverage, and environmental concerns. These limitations highlight the need for developing more efficient and environmentally friendly extraction techniques. Ionic liquids (ILs) have shown promise in protein extraction due to their excellent solubility and enzyme compatibility, offering a potential solution to these issues. In this study, we explore the use of short and long alkyl chain ILs to improve protein extraction efficiency from plant leaves. Results Using tobacco K326 as a model plant, a stepwise extraction system was designed with 10% 1-ethyl-3-methylimidazolium chloride ([C 2 MIM]Cl) and 4% 1-dodecyl-3-methylimidazolium chloride ([C 12 MIM]Cl). Both [C 2 MIM]Cl and [C 12 MIM]Cl effectively disrupted the cellulose hydrogen-bond network, facilitating protein release from the plant cell wall, while [C 12 MIM]Cl also enhanced membrane protein solubility, significantly improving the overall protein extraction efficiency. The relative protein concentration achieved with this method was 2.28, which is notably higher than traditional methods using urea (1.21) and SDS (1.47). The method was applied to proteomic analysis of healthy and brown spot disease-affected tobacco leaves, identifying 6858 proteins in total. Among these, 758 proteins were differentially expressed, with 414 upregulated and 344 downregulated in diseased leaves, providing insight into disease-related protein expression. Significance This novel protein extraction method offers a highly efficient alternative to traditional approaches. It significantly enhances protein yield and solubility, providing valuable support for in-depth plant proteomics research. This method is particularly useful for studying plant disease responses, facilitating the identification of disease-related proteins and contributing to the understanding of plant-pathogen interactions.
研究领域:
植物科学
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蛋白质组学
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分析化学
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分子生物学
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生物化学
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高影响因子
危险品化学品经营许可证（带存储）