ACS Applied Engineering Materials
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2025
·
IF 3.5
Qingchun Xu,Xiao Liu,Pingxia Guo,Qiang Chen,Gang Liu,Meirong Cai
Three green amino acid-based ionic liquids (AAILs) were synthesized, and their tribological properties, corrosion inhibition capabilities, and biodegradability as water-based additives were systematically evaluated. The addition of 1 wt % of AAILs significantly enhanced the lubrication performance and corrosion resistance of water, of which triisopropanolamine-lauroyl glutamic acid (TIPA-LG) exhibited the most outstanding tribological properties. Compared to water, the coefficient of friction (COF) and wear volume (WV) of TIPA-LG were reduced by 68.5 and 95.5%, respectively. TIPA-LG can form a physical and chemical adsorption film and a friction chemical reaction film at the friction interface. The synergistic effect of these two lubrication films effectively reduces the direct contact between metal surfaces, thereby enhancing the friction-reducing and antiwear properties of the lubricant. Furthermore, TIPA-LG demonstrated excellent environmental compatibility, achieving a biodegradation rate of 80.89% within 28 days. These environmentally friendly, high-performance, water-based lubricant additives show promise in metal working applications.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Zhiang Li,Shuai Liu,Hao Xu,Fan Ding,Weimin Wang,Kaikai Song,Ting Liu,Lina Hu
Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) is widely used in polyethylene oxide (PEO) based solid electrolytes preparation due to its high ionic conductivity, electrochemical stability towards lithium and excellent mechanical properties. However, agglomeration of LLZTO and the inert interfacial layer for Li + transport between LLZTO and PEO limit its application. Herein, we systematically study the effect of different contents of 1-methyl-1-propylpiperidinium bis(trifluoromethylsulfonyl)imide (denoted as PP13-TFSI) ionic liquid on PEO/LLZTO composite solid electrolytes (CSEs). PP13-TFSI, which provides a new pathway for Li + transport and promotes the uniform dispersion of LLZTO. By adjusting the proportion of PP13-TFSI reasonably, the agglomeration of LLZTO is weakened, the crystallinity of PEO is reduced, and the growth of lithium dendrites is also inhibited. Therefore, the CSEs with high ionic conductivity (2.03 × 10 −4 S cm −1 , 30 ℃) enhanced by PP13-TFSI. Li||Li symmetric batteries exhibit stable cycling up to 6000 h at 60 °C, and can cycle stably for up to 3000 h at 28 °C. LiFePO 4 ||Li full batteries exhibit high-capacity retention rate (≈ 90.5 %) after 500 cycles at 1 C. This work not only systematically study the effects of different contents of PP13-TFSI on CSEs, but also provide a simple composite solid electrolyte strategy.
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Nanomaterials
·
2019
·Vol. 9
·期 4
·513
·
IF 4.034
Jian Hu,Hao Dai,Yanbo Zeng,Yiwen Yang,Hailong Wang,Xudong Zhu,Lei Li,Guobao Zhou,Ruoyu Chen,Longhua Guo
In this study, we report a cross-linker-based poly(ionic liquid) (PIL) for the sensitive detection of 4-nonylphenol (4-NP). PIL was poly(1,4-butanediyl-3,3′-bis-l-vinylimidazolium dibromide) (poly([V2C4(mim)2]Br2)). Poly([V2C4(mim)2]Br2) was prepared via one-step free-radical polymerization. The poly([V2C4(mim)2]Br2) was characterized by infrared spectroscopy, Raman spectroscopy, thermal gravimetric analyzer and scanning electron microscope. The poly([V2C4(mim)2]Br2) was then drop-cast onto a glassy carbon electrode (GCE) to obtain poly([V2C4(mim)2]Br2)/GCE. In comparison with a bare GCE, poly([V2C4(mim)2]Br2)/GCE exhibited higher peak current responses for [Fe(CN)6]3−/4−, lower charge transfer resistance, and larger effective surface area. While comparing the peak current responses, we found the peak current response for 4-NP using poly([V2C4(mim)2]Br2)/GCE to be 3.6 times higher than a traditional cross-linker ethylene glycol dimethacrylate (EGDMA) based poly(EGDMA) modified GCE. The peak current of poly([V2C4(mim)2]Br2) sensor was linear to 4-NP concentration from 0.05 to 5 μM. The detection limit of 4-NP was obtained as 0.01 μM (S/N = 3). The new PIL based electrochemical sensor also exhibited excellent selectivity, stability, and reusability. Furthermore, the poly([V2C4(mim)2]Br2)/GCE demonstrated good 4-NP detection in environmental water samples.Keywords:poly(ionic liquid);cross-linker;electrochemical detection;4-nonylphenol
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JOURNAL OF CHROMATOGRAPHY A
·
2016
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IF 3.926
Zhenkun Mao,Zilin Chen
A novel monolithic column with ionic liquid and styrene-modified bifunctional group was prepared for capillary electrochromatography (CEC) by in situ copolymerization in a ternary porogenic solvent. Ionic liquid (1-allyl-methylimidazolium chloride, AlMeIm + Cl − ) and styrene served as the bifunctional monomer, while ethylene dimethacrylate (EDMA) was used as the cross-linker. The monomer of AlMeIm + Cl − was introduced as anion-exchange group, while styrene as hydrophobic and aromatic group; the similar conjugated structure in AlMeIm + Cl − and styrene was beneficial for offeing obvious synergistic effect. The bifunctional stationary phase possessed powerful selectivity for the separation of neutral compounds, acidic analytes and phenols. The highest column efficiency was 2.70 × 10 5 plates m −1 (theoretical plates, N) for toluene. A relatively strong electroosmotic flow (EOF) was obtained in a wide range of pH values from 2.0 to 12.0, which could successfully achieve the rapid separation of the analytes within 10 min. The proposed monolithic column was characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR). The results indicated that the resultant monolithic column had good permeability and excellent mechanical stability. Good reproducibility was obtained with relative standard deviations (RSDs) of the retention time in the range of 0.24–0.47% and 0.81–2.17% for run-to-run (n = 5) and day-to-day (n = 5), while 1.09–2.70% and 0.98–1.70% for column-to-column (n = 3) and batch-to-batch (n = 3), respectively. The combination of AlMeIm + Cl − and styrene was a promising option in the fabrication of the organic polymer monolithic column.
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PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2017
·Vol. 19
·期 17
·10835-10842
·
IF 4.123
Wenbin Jin,Yuqi Ke,Xianxian Liu,Qiwei Yang,Zongbi Bao,Baogen Su,Qilong Ren,Yiwen Yang,Huabin Xing
The development of new solvents combining greatly enhanced solubility for sparingly soluble compounds and good kinetic properties is challenging. In this study, we constructed a family of new molecular solvent/ionic liquid (IL) mixtures with amphiphilic, anionic functional long-chain carboxylate ionic liquids (LCC-ILs) as a key component for the solubilization of sparingly soluble compounds, using cholesterol as a model solute. Polarized optical microscopy (POM), wide angle X-ray diffraction (WAXD), Fourier-transform infrared (FTIR) spectra and 1H NMR showed that ordered mesoscopic structures, such as liquid crystals (LCs), were formed when cholesterol was dissolved in the mixtures, presenting a self-assembly induced dissolution mechanism driven by H-bond interaction and van der Waals forces in the mixtures. A synergistic effect between the molecular solvents and LCC-ILs was revealed, which contributed to enhanced solute–solvent self-assembly in dissolution over pure LCC-ILs and thus elevated solubility. Additionally, the effect of IL concentration, solvent type and anionic alkyl-chain length on self-assembly and solubility was investigated. These mixtures showed unparalleled solubilities for cholesterol, while maintaining a low viscosity. The quantitative solubilities (g g−1) of cholesterol were as high as 0.70, 0.84 and 0.82, respectively, at 25 °C in ethyl acetate/[P4444][C15H31COO] (50 wt%), n-heptane/[P4444][C15H31COO] (40 wt%) and ethyl acetate/[P4444][C17H35COO] (50 wt%) mixtures, which were the highest solubilities of cholesterol ever reported, six- to 980-fold higher than traditional molecular solvents and even one- to seven-fold higher compared to pure LCC-ILs. These results demonstrated the considerable potential of molecular solvent/LCC-ILs mixtures as promising solvents for solubilization and advanced separation processes.
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POLYMER COMPOSITES
·
2025
·
IF 4.7
Keke Ma,Xiang Gao,Zhiji Liu,Jian Wu,Lingjie Zhang,Zhen Huang,Zhiqiang Zhou,Ningzhong Bao
To develop high-performance polypropylene (PP)-based composite bipolar plates (BPs) with enhanced processability and electrical conductivity, this work introduces a halogen-free ionic liquid (IL) containing long alkyl chains in cation and anion, namely trihexyl(tetradecyl)phosphonium di(2-ethylhexyl) phosphate ([P 66614 ][DEHP]), as a multifunctional plasticizer. The composite BPs containing binary graphite (Gr) and carbon black (CB) conductive fillers and IL are fabricated by twin-screw extrusion and compression molding. Results show that after adding 4 wt% IL to the 30PP/63Gr/7CB BP, the torque decreases from 14.3 to 7.8 N m, the storage modulus at processing temperature (210°C) lowers from 1894 to 856 MPa, and the electrical conductivity increases by 192%. The added IL enhances melt fluidity, ensuring uniform filler dispersion; at the same time, it provides additional electron pathways boosting conductivity. Moreover, IL also reduces the density and improves the hydrophobicity of the composite BP. The incorporation of the IL-based plasticizer offers a novel approach for designing easily processable and high-performance composite BPs.
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ENERGY & FUELS
·
2025
·
IF 5.3
Xingyu Lin,Hongsheng Lu,Ruoxin Zhang,Yingjiang Chen,Li Wang,Baiwen Huang
Underground CO2 storage is a key strategy for mitigating climate change by reducing greenhouse gas emissions. However, the heterogeneity of reservoirs poses challenges to effectively storing CO2 in designated spaces. In this study, an environmentally friendly CO2-responsive ionic liquid (IL) DA-Ch was synthesized by choline hydroxide (Ch) and dodecanedioic acid (DA) at a 2:1 mol ratio. The innovative system enhances the sweep efficiency and storage capacity of CO2 by enabling the transition of DA-Ch ILs aqueous solution from low-viscosity liquids (0.5 mPa·s at 0.1 mol/L) to solid microparticles upon CO2 introduction. After CO2 injection, DA precipitated again from the DA-Ch ILs aqueous solution with a volume mean particle size of micrometers, even under high-salinity conditions. This phase transition effectively plugs preferential flow channels, expanding CO2 storage space by 82% compared to conventional CO2 flooding. Our findings propose a novel, sustainable approach to address gas channeling challenges in subsurface CO2 storage, offering dual benefits for carbon sequestration and enhanced oil recovery.
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Applied Materials Today
·
2025
·
IF 6.9
Huixian Xu,Rui Ye,Ye Zhong,Wanling Chen,Jichuan Zhang,Zhenyuan Wang,Le Du,Fan Hu,Chengyu Wu,Jiaheng Zhang
Although retinol and its derivatives are effective anti-aging substances, they can induce “retinoid dermatitis.” To solve this problem, a novel 4-t-butylcyclohexanol α-lipoic acid ionic liquid (BLA-IL) was prepared and confirmed. Retinol can be directly dissolved into BLA-IL, encapsulated into nanoparticles (NPs) and form retinoid-loaded ionic liquid NPs. In-vivo and ex-vivo studies investigated the developed formulation's safety, transdermal enhancement, and efficacy. Safety assessments revealed that BLA-IL-mediated TRPV1 antagonism was achieved. In particular, IL-NPs increase the amount of retinoid in the skin by 4.3 times compared to the free retinoid and 27 % more than NPs. Based on in vivo and in vitro experiments, BLA-IL synergistically doubled the effect of fibroblast COL-I synthesis, with upregulation to 756.9 %, simultaneously enhancing COL-I, COL3A1, and Elna gene expression and inhibiting MMP-1, reactive oxygen species, and neutrophil aggregation. Clinically, retinoid-loaded IL-NPs significantly improved wrinkles, R2, collagen intensity, ITA°, and l -value compared to free retinoid in volunteers. In conclusion, this study displayed that BLA-IL NPs could promote transdermal delivery and achieve synergistic anti-aging efficacy. It could be a promising technology combining IL and nano-technology in the pharmaceutic and cosmetic transdermal areas.
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Small
·
2025
·
IF 12.1
Yu-Ren Xue,Guang-Chang Xu,Kai Li,Xin-Yu Guo,Jian Wu,Hong-Qing Liang,Hao-Cheng Yang,Chao Zhang,Zhi-Kang Xu
The growing demand for energy-efficient carbon capture has spurred significant advancements in supported ionic liquid membranes (SILMs), which utilize ionic liquid (IL) with high CO 2 solubility for continuous gas purification processes. However, conventional SILMs are hindered by a persistent limitation: thick IL layers (> 50 µm) significantly reduce CO 2 permeance to below 1 GPU, while also causing mechanical failure under prolonged operational pressure. Inspired by the interlocking elytra of Tenebrionidae beetles, which use microscale “teeth” to withstand mechanical stress, locked ionic liquid membranes (LILMs) are engineered by composeing two interpenetrating polyamide nanofilms with biomimetic protrusions. These nanofilms confine ILs within cavities formed by protrusions, thinning IL layers to sub-0.5 µm while resisting shear stresses. The LILMs demonstrate a CO 2 /N 2 selectivity of 55 and an enhanced CO 2 permeance of 8.2 GPU, surpassing the performance of conventional SILMs by ≈20-fold while maintaining stability over 168 h of continuous mixed gas separation. By dual-purposing ILs as both solvents for interfacial polymerization and CO 2 transporters, this bio-inspired architecture overcomes the thickness-stability limitations, enabling energy-efficient carbon capture.
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Nature Communications
·
2025
·
IF 15.7
Jian Qiu,Chang Gu,Mingtai Chen,Changshun Chen,Lingfeng Chao,Hao Jiang,Wanlin Cai,Yonghua Chen,Qiushui Chen,Xian Qin,Xiaogang Liu
X-ray imaging requires effective light transmission through scintillation screens. However, solid or solution-based scintillators suffer from photon scattering and attenuation. While prior efforts have focused on improving light extraction in solid-state scintillators through nanostructuring or optical engineering, challenges remain in mitigating internal scattering losses. Here, we report a liquid scintillator-based strategy that eliminates light scattering by exploiting in-situ coordination between lanthanide ions and ionic liquid ligands. This coordination chemistry ensures high structural homogeneity and optical transparency. Combined with self-absorption-free lanthanides, this approach achieves over 93% scintillation light transmittance, boosting X-ray imaging spatial resolution to 26 lp mm -1 within a 1 mm scintillation screen. Our scintillators exhibit long-term stability and environmental compatibility, leveraging the inherent properties of ionic liquids for sustained and biocompatible X-ray imaging. Their fluidic and shape-adaptive nature enables the development of convex and zoom scintillation lenses, facilitating uniform omni-angle X-ray detection and in-situ zoom X-ray imaging. Qiu et al. report an intrinsic liquid scintillator which eliminates the light scattering by exploring in-situ coordination between lanthanide ions and ionic liquid ligands. The liquid scintillator is biocompatible with high uniformity for omni-angle X-ray detection. Convex scintillation lens is demonstrated for enlarged X-ray imaging.
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WATER SCIENCE AND TECHNOLOGY
·
2021
·Vol. 84
·期 8
·1930-1942
·
IF 1.915
Huang Jialei,Luo Yan
Persulfate oxidation technology is widely used in wastewater treatment, but there are still many disadvantages, such as high energy consumption, side reaction and narrow pH applicability. Copper oxides can activate persulfate steadily with higher efficiency. In this paper, a novel preparation method of shape-controlled cuprous oxide (Cu 2 O) nanoparticles featured with high catalytic performance was explored. It was found that adding ionic liquid 1-butyl-3-methylimidazolium bromide ([BMIM]Br) during preparation of Cu 2 O can improve the degradation rate of diclofenac (DCF). Cu 2 O nanoparticles possess good stability in consecutive cycling tests, which was confirmed by X-ray photoelectron spectroscopy. The possible mechanism of Cu 2 O activating persulfate at different initial pH conditions was discussed based on electron paramagnetic resonance spin-trapping experiment. It was found that DCF was efficiently degraded in the Cu 2 O/peroxydisulfate (PDS) system within a broad pH range from 5 to 11. It proved via a quenching experiment that the activation process of PDS mainly occurs on the surface layer of Cu 2 O nanoparticles. As a result, shape-controlled Cu 2 O nanoparticles prepared by ionic liquid are expected to be used for in situ chemical oxidation, which is an effective oxidation processes to degrade DCF remaining in surface water and ground water. This study provides a novel preparation method of shape-controlled cuprous oxide (Cu 2 O) particles featured with high catalytic performance to degrade diclofenac (DCF). It overcomes the disadvantages of degradation of organic pollutants by the traditional Fe in situ chemical oxidation system to some extent, such as being unrecyclable and having a narrow application range of pH value.
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Molecular Catalysis
·
2024
·
IF 3.9
Yuhang Bian,Xiaoyan Zheng,Jie Li,Zhijian Peng,Gang Wang,Chunshan Li
In recent years, the methacrolein (MAL) synthesis through the aldol condensation of formaldehyde (FA) with propanal (PA) has received great attention of researchers. Herein, an ionic liquid-functionalized polymer catalyst, which exhibited higher performance than common homogenous sec -amine catalyst, was developed for catalytic synthesis of MAL via aldol condensation of FA with PA. FT-IR, XPS, TG-DTA, and 13 C MAS NMR were used to characterize the structural and physicochemical features. The influences of solvent and reaction conditions on the catalytic performance were also systematically studied and optimized. The in situ FT-IR spectroscopic experiments were performed to investigate the catalytic mechanism. Kinetic studies revealed that the activation energy of aldol condensation between the FA and PA was 51.6 kJ/mol. No obvious decay of catalytic performance was observed after twelve cycles.
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