Journal of CO2 Utilization
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2024
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IF 7.2
Cheng Zhang,Ning Zhou,Shiting Wang,Xiaoxia Yang,Tingyan Peng,Zhifeng Dai,Feiyong Xiang,Yubing Xiong
The efficient conversion of atmospheric CO 2 into high value-added chemicals remains a persistent challenge. In this study, a novel strategy for the fabrication of triazine- and amino-functionalized poly(ionic liquid)s (PILs) was reported. By virtue of the rich nitrogen species, the newly-developed PILs possessed great potential in CO 2 conversion to produce high-value chemicals. The systematic investigation illustrated that rich-nitrogen PILs could promote the cycloaddition reaction of CO 2 and epoxides through the intramolecular synergy of multiple active sites. Excellent conversion and selectivity were achieved under the mild conditions without any co-catalysts and solvents. In addition, PIL heterogeneous catalysts could be easily recovered and reused at least several times without obvious loss in activity. The density functional theory calculation demonstrated that the superior catalytic activity of rich nitrogen PILs was attributed to the synergistic effect of hydrogen bond donor and triazine ring in the catalytic process. Our finding thus presents a versatile platform for fabricating multi-functional heterogeneous catalysts for efficient CO 2 conversion.
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Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Feng Feng,Jiaying Zhang,Lu Yu,Haixin Wang,Heda Ding,Jifan Cheng,Miaolan Wang,Fangfang Chen,Jiahui Zhang,Lingling Guo,Chunshan Lu,Qunfeng Zhang,Xiaonian Li
In order to develop an efficient and environmentally friendly method for the recovery of precious metals, a functionalized ionic liquid containing free radicals (1-methyl-3-(2-oxo-2-(2,2,6,6-tetramethyl-1-oxo-4-piperidinoxy) butyl) imidazole trichloro-1-bromoaluminium salt) was designed and synthesized. This was achieved by combining 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), which possesses oxidizing properties, with halide ions that exhibit complexing abilities. Notably, under optimal conditions, a maximum gold dissolution rate of 100 % was attained. X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and Raman spectroscopy analyses were conducted to elucidate the dissolution mechanism. Ultimately, these functionalized ionic liquids can be utilized for the dissolution of precious metals in CPU pins and waste catalysts. This study presents an effective approach for the recovery of precious metals.
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FOOD CHEMISTRY
·
2025
·
IF 9.8
Xu-Hui Li,Yan-Hong Li,Yuan-Yuan Cui,Cheng-Xiong Yang
Herein, a novel ionic liquid doped magnetic microporous organic network (IL-MMON) with abundant electrostatic and ion exchange sites was synthesized for the first time for highly efficient and selective magnetic solid-phase extraction (MSPE) of polar phenoxycarboxylic acid herbicides (PCAs) from complex vegetable samples. The prepared IL-MMON exhibits large specific surface area, rapid magnetic response, good stability and ample PCAs binding sites. The extraction efficiencies can be reasonably regulated by tuning the doping ratios of IL. The established method has wide linear ranges (1–1000 μg L −1 ), low limits of detection (0.3–1.3 μg L −1 ), large enrichment factors (94.6–99.9), less adsorbent consumption (3 mg), short extraction time (8 min), good recovery (80.9–105.8 %), and insignificant matrix effect (89.2–108.5 %). The experimental and DFT analyses revealed extraction mechanisms include electrostatic attraction, ion exchange, and π-π interactions. This study shows considerable potential of IL-MMON and may open up a new way for synthesizing IL-MMON in sample pretreatment
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Bilian Jiang,Shanshan Dai,Wei Fan,Jialong Yang,Ruiyao Wang,Yuanqiang Zhu
Aiming at the issues of high corrosion and high energy consumption in the traditional aqueous absorption system, this study adopts organic alcohols as the absorption medium instead of water. Organic alcohol solvents enhance the absorption efficiency and the corrosion resistance of the system by forming hydrogen-bond networks with ionic liquids. Meanwhile, by introducing of alcohol ether solvents as phase separation promoters has successfully established an efficient, low corrosive, and low energy consuming liquid-liquid phase change absorption system. The system’s CO 2 absorption loading can reach 4.71 mol CO 2 /mol PILs, the absorption loading in simulated flue gas reaches 3.98 mol CO 2 /mol PILs, the volume fraction of the CO 2 -rich phase is 35.0 %, and its corrosivity is only 17.3 % that of MEA solution. The cyclic performance indicates that after five cycles, the CO 2 absorption loading of the system can still reach a good state. Analysis by ¹³C‐NMR spectra reveal that the absorption mechanism adheres to the zwitterionic mechanism. The phase separation phenomenon is closely related to changes in polarity, density, and viscosity. This system opens a new direction for the development of low corrosion and high energy efficiency phase change absorption technologies.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Qianwei Zhang,Rong Yang,Chao Li,Meng Luo,Yu Jiang,Chaojiang Fan,Yinglin Yan,Yunhua Xu
Composite solid-state electrolytes have attracted growing attention due to their good flexibility and wide range of interfaces. However, the inherent poor compatibility at the organic–inorganic interface significantly impedes lithium-ion transport, limiting overall electrochemical performance. In this study, a continuous semi-immobilized ionic liquid interface layer (SIL) was constructed on the surface of three-dimensional Li 6.4 La 3 Zr 2 Al 0.2 O 12 (3D-LLZAO). The SIL facilitates Li + adsorption through the pre-exchanged TFSI - anion with Cl - ions in the ionic liquid within the SIL and promotes rapid hops migration of Li + among anionic sites. In addition, the introduced TFSI - anions reduce the interaction between poly(ethylene oxide) (PEO) chains and Li + , thus enhancing ion mobility. Moreover, the SIL effectively regulates the concentration gradient of Li at the electrolyte/anode interface, ensuring uniform Li + nucleation and deposition. As a result, the prepared 10LIP electrolyte exhibits a simulated Li + diffusion coefficient 5.16 times higher than that of the 10LP electrolyte, alongside an ionic conductivity reaching 6.98 × 10 −4 S cm −1 . This work proposes a rational strategy for enhancing interfacial ion transport in composite solid electrolytes via the introduction of a semi-immobilized ionic liquid interface layer at the organic–inorganic interface, offering valuable insights for the lithium-ion transport at organic–inorganic interface.
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Small
·
2025
·
IF 12.1
Lu Han,Cancan Shan,Mei Cui,Rongxin Su,Renliang Huang
Ionic conductive hydrogels have attracted significant attention as wearable sensors due to their intrinsic flexibility, biocompatibility, and excellent sensing properties. Nevertheless, their practical applications in underwater environments are limited by challenges such as hydrogel swelling and ionic components leaching. Herein, a hydrophobic ionic liquid (IL)-mediated molecular engineering strategy is presented to fabricate underwater-stable conductive hydrogels integrated with anti-swelling and adhesion properties. The strategy utilizes a DMSO-IL binary solvent that exploits differential polymer-water affinity to drive phase separation. Notably, hydrophobic IL enhances phase separation through multiple interactions with hydrophilic groups while constructing a bicontinuous conductive network within the hydrogel. The strategic incorporation of poly(vinyl alcohol) (PVA) increases the cross-linking density, enhancing the mechanical and anti-swelling performance of the hydrogel. The fabricated hydrogels are utilized as wearable sensors featuring reliability and wide sensing ranges for underwater communication and human motion detection. The hydrogel sensor could withstand 400 stretching-releasing cycles and 1 month of immersion in water, with negligible performance change. This molecular design strategy advances the development of durable ionic conductive hydrogels for underwater electronics, addressing key limitations in underwater sensors.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Tianyue Tan,Le Yao,Xiwei Guo,He Zhu,Qi Zhang,Shiping Zhu
Low-surface-energy (LSE) materials, such as polytetrafluoroethylene (PTFE), are extensively used in advanced technologies like 5G chip production and base station filters, due to their hydrophobicity, chemical resistance, low friction, and excellent dielectric properties. However, their inherent chemical inertness and nonwetting nature pose significant challenges to achieving strong adhesion. In this work, we present a pressure-sensitive adhesive (PSA) tape composed of fluorinated monomers and hydrophobic ionic liquids, synthesized through a one-step, scalable process. This adhesive demonstrates an impressive bond strength of 1700 N/m on PTFE, significantly outperforming existing adhesives for LSE substrates. The enhancement arises from the strategic incorporation of ion-dipole interactions between the polar –CF3 groups in the fluorinated monomers and the ionic liquid cations, which create sacrificial bonds to improve cohesion and energy dissipation. Remarkably, this adhesive requires no surface pretreatment, maintains high transparency, and demonstrates stable adhesion even under high humidity. This work addresses a critical gap in adhesion technology for LSE materials, offering a scalable and versatile solution with diverse applications in advanced electronics, aerospace, and other industries demanding high-performance adhesives.
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高影响因子
Joule
·
2022
·
IF 46.048
Lingfeng Chao,Yingdong Xia,Xiaozheng Duan,Yue Wang,Chenxin Ran,Tingting Niu,Lei Gu,Deli Li,Jianfei Hu,Xingyu Gao,Jing Zhang,Yonghua Chen
Direct and stable α-phase formation of formamidinium lead triiodide (FAPbI 3 ) perovskite serves as an indispensable prerequisite for constructing stable and efficient perovskite solar cells. However, the α-phase formation is highly limited by molecular additives. Here, we report a strategy for directly fabricating stable α-phase of FAPbI 3 perovskite by controlling the precursor solution on the molecular level using methylammonium acetate (MAAc) ionic liquid. We found that a strong interaction between Ac − and Pb 2+ via C=O···Pb chelation enables the relaxation of Pb–I bonds and thus allows the effective insertion of formamidinium iodide (FAI) into soft Pb–I framework. Molecular dynamics simulations also show that the precursor solution has undergone an exchange of coordination between I − and Ac − to provide the reaction sites for FAI. With a one-step, antisolvent-treatment-free, and air-processing approach regardless of humidity, the corresponding photovoltaic cell exhibits an efficiency close to 24% along with long operational stability over 1,000 h.
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ChemSusChem
·
2024
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IF 7.5
Dan Li,Qian Chen,Rui Li,Yaolin Hou,Yulong Liu,Haiming Xie,Jia Liu,Jiefang Zhu
Graphical The incorporation of the polyionic liquid additive [PBVIm]-TFSI in LiI-mediated Li-O 2 batteries enables the in situ formation of a protective layer on the Li anode. [PBVIm] + cations migrate to the Li anode, forming a cationic shield that promotes uniform Li + deposition. A [PBVIm][TFSI]-containing cell demonstrates a considerable reversibility and cycling stability. Redox mediators (RMs) have shown promise in enhancing Li-O 2 battery cycling stability by reducing overpotential. However, their application is hindered by the shuttle effect, leading to RM loss and Li anode corrosion. Here, we introduce a polyionic liquid, poly (1-Butyl-3-vinylimidazolium bis(trifluoromethanesulfonylimine)) ([PBVIm]-TFSI) as an additive, showcasing a novel Li anode protection strategy for LiI-mediated Li-O 2 batteries. [PBVIm] + cations migrate to the Li anode, forming a protective cationic shield that promotes uniform Li + deposition. The addition of [PBVIm]-TFSI enhances the cycling stability, achieving 105 cycles at 200 mA⋅g −1 , compared to the cell with LiI which exhibited 38 cycles under the same conditions. Synchrotron X-ray tomography reveals the evolution of this protective layer, providing insights into its formation mechanism, in conjunction with XPS analysis. Our findings offer a new approach to Li anode protection in Li-O 2 batteries, emphasizing the critical role of interfacial engineering for battery performance.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Liyuan Fan,Shaobin Wen,Bin Peng,Mengshi Chen,Yanqiu Wang,Qiang Zhang
Membrane fouling remains a persistent and arduous challenge in the industrial treatment of different surfactants-stabilized oily wastewater. Constructing a robust antifouling and sustainable hydration coating on the membrane surface to efficiently repel oils or surfactants is a critical requirement. Herein, cyclodextrin-based poly(ionic liquid)s (PILs) coatings are cross-linked via the co-deposition on poly(vinylidene fluoride) (PVDF) of quaternized heptkis(6-deoxy-6-vinylimidazolium)-β-cyclodextrin (CD-Vi) derivatives as skeleton and acrylic acid (AA) monomers, and following one-step free radical photopolymerization. Combining with the strong hydration of the CD-based PILs coating, the resultant membrane exhibits fabulous superhydrophilicity and underwater superoleophobicity, oil repulsion, and self-cleaning capability. It demonstrates robust mechanical durability and chemical stability in harsh environments without losing its superhydrophilicity. Besides, the PIL-CD/AA coating can separate various surfactant-free and different surfactants (cationic CTAB, anionic SDS, and nonionic TWEEN 80) stabilized oil / water emulsions. During the long-term cycle operations, it also realizes stable recyclability with a series of permeation fluxes as high as removal efficiencies (>99.6 %) after 20 cycles for surfactant-free cyclohexane-in-water emulsion and 10 cycles for CTAB-stabilized isooctane-in-water emulsion.
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Materials Advances
·
2024
·
IF 5.2
Sixin Jia,Rui Wang,Fengquan Liu,Hong Huo,Jianjun Zhou,Lin Li
Lithium–sulfur (Li–S) batteries have been considered as one of the most promising candidates for high energy-density batteries due to their high theoretical capacity (1675 mA h g−1). However, the cycling performance is not satisfactory due to the “shuttle effect” of polysulfide and the growth of Li dendrites. In this study, imidazole-based poly(ionic liquid) (PIL) is synthesized. Using PIL in Li–S batteries, we realize the goal of achieving two benefits with one action. The cross-linked PIL (c-PIL) is used to modify the S cathode, and the shuttling of polysulfides is effectively inhibited due to the strong adsorption capability. Density functional theory (DFT) calculations indicate that the strong van der Waals and electrostatic interaction promote the adsorption of polysulfides. PIL, as an artificial solid electrolyte interface layer, is coated on the Li anode to prevent the corrosion of liquid electrolyte and homogenize Li+ flux. The results of DFT and X-ray photoelectron spectroscopy indicate that the N containing imidazole in PIL can be reduced by active Li to form a Li3N rich layer on the interface. The Li3N containing interfacial layer can promote dendrite-free Li deposition beneath the PIL coating layer. By functionalizing the S cathode and Li anode, the PIL@Li‖c-PIL@S batteries show much improved cycling stability and C-rate performance. The results manifest that our strategy of modification of the cathode and anode electrodes is effective, which is sure to promote the development of advanced Li–S batteries.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 32
·期 4
·2106341
·
IF 18.808
Chao Chen,Wu Bin Ying,Jiayi Li,Zhengyang Kong,Fenglong Li,Han Hu,Ying Tian,Do Hwan Kim,Ruoyu Zhang,Jin Zhu
Ionic skin (I-Skin) has the advantage of feasible compatibility with biological systems. Nevertheless, developing a stable and durable ionic skin is challenging. Here, an ionic polyurethane (i-PU) is synthesized, which is capable of self-healing and able to lock the ionic liquids (ILs). In detail, an ionic chain extender containing an ammonium cationic group is synthesized, followed by the polymerization to obtain the target i-PU. Through electrostatic interaction and chain diffusion, the i-PU can be fully self-healed at room temperature within 400 min. Afterward, low contact angle (37°) of the i-PU against IL and the density functional theory (DFT) calculation prove their good compatibility and strong interaction, originating from the electrostatic interaction. The Raman intensity map shows the reversible process of the enrichment and restoration of ionic concentration on the i-PU/IL surface when external pressure is applied or released, proving stable binding of ions by ionic polymer chains. Lastly, the self-healing I-Skin based on the i-PU/IL is fabricated with a wide range of pressures (0–120 kPa), fast response time (32 ms), excellent antifatigue property (2% attenuation after 1000 cycles), and remarkable sensitivity (52.4 kPa –1 ).
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危险品化学品经营许可证（带存储）