CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Wenzhe Su,Zanyu Chen,Xingkai Wang,Peng Cui,Minjie Yao,Hui Sun,Hong Zhang,Yida Deng,Xiaopeng Han,Wenbin Hu
Due to high safety and low-cost, aqueous Zn-ion batteries (ZIBs) are expected to be a promising next-generation energy storage technology. Exploiting high capacity and stable cathode materials are extremely important for the development of aqueous ZIBs. However, commercial V 2 O 5 despite its high theoretical specific capacity, suffers from structural instability during charging and discharging, and strong electrostatic forces seriously limit the diffusion of Zn 2+ . Herein, a novel dynamic transport mechanism of Zn 2+ is designed by intercalating organic cations (C 8 H 15 N 2 + ) from ionic liquids into the interlayers of V 2 O 5 . The electrostatic interaction between the C 8 H 15 N 2 + and the V-O layers enhance the structure stability of the layers and increase the interlayer spacing. Meanwhile, the C 8 H 15 N 2 + between the V-O layers reduce the diffusion energy barrier of Zn 2+ and enable the rapid dynamically transport of Zn 2+ . The diffusion coefficient is enhanced by an order of magnitude. The optimized V 2 O 5 cathode exhibits a high capacity of 268 mA h/g at 100 mA/g and excellent cycling stability (over 500 cycles at 200 mA/g with nearly 100 % coulombic efficiency). The home-made pouch cells deliver a high energy density of 310 W h kg −1 . This interesting idea opens up a new research direction for high-energy secondary batteries.
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DOI
高影响因子
Geoenergy Science and Engineering
·
2023
·
IF 0
Fan Ye,Xinyuan Zhang,Xuebin Jiang,Hanjun Liu,Yuqi Tang,Qian Qu,Liwei Shen,Zejun Zhang,Yuanzhu Mi,Xuemin Yan
In this work, a three-branched betaine type ionic liquid (TESA) with elevated interfacial activity was synthesized to separate water from crude oil emulsions at low temperature. The chemical structure, demulsification performance, and demulsification mechanism of TESA was investigated. The bottle tests exhibited that the dehydration efficiency was 100% with 150 mg/L of TESA for 40 min at 50 °C. TESA was effective in acidic, alkaline, and high salinity conditions. The dehydration efficiency of TESA was more than 95.63% with a wide pH range of 3–11. Furthermore, the dehydration efficiency was 100% with 50000 mg/L of salinity for 20 min at 50 °C. Encouragingly, the dehydration efficiency of TESA was better than that of commercial demulsifiers and reported work. The excellent dehydration efficiency of TESA was ascribed to the elevated interfacial activity, amphipathy, and strong interaction with asphaltenes . As a result, TESA improved the substitution of asphaltenes and considerably reduced interfacial tension, resulting in an unstable interfacial film and leading to demulsification. It indicated that TESA was an effective demulsifier, which promised application in the oil industry.
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DOI
Green Energy & Environment
·
2020
·
IF 6.395
Hong Zhang,Ying Luo,Dong Chen,Hui Liu,Penglei Cui,Jun Yang
To maximize the size and structural advantages of nanomaterials in electrooxidation of ethanol, we herein report the synthesis of core–shell gold (Au)@Palladium (Pd) nanoparticles smaller than 3 nm in an ionic liquid, which combines the advantages of ionic liquids in preparing fine metal nanoparticles with the benefits of core–shell nanostructures. This synthetic strategy relies on the use of an ionic liquid (1-(2′-aminoethyl)-3-methyl-imidazolum tetrafluoroborate) as a stabilizer to produce Au particles with an average size of ca. 2.41 nm, which are then served as seeds for the formation of tiny core–shell Au@Pd nanoparticles with different Au/Pd molar ratios. The strong electronic coupling between Au core and Pd shell endows the Pd shell with an electronic structure favorable for the ethanol oxidation reaction. In specific, the ionic liquid-derived core–shell Au@Pd nanoparticles at an Au/Pd molar ratio of 1/1 exhibit the highest mass- and area-based activities, approximately 11 times than those of commercial Pd/C catalyst for ethanol electrooxidation.
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DOI
高影响因子
JOURNAL OF FOOD AND DRUG ANALYSIS
·
2017
·
IF 3.048
Juan Miao,Xin Wang,Yunchang Fan,Jing Li,Lina Zhang,Guitao Hu,Can He,Can Jin
A mercury(II) ion-selective electrode with an ionic liquid (IL), 1-methyl-2-butylthioimidazolium bis(trifluoromethanesulphonyl)imide ([C 1 C 4 Sim]NTf 2 ) as active material was constructed. Parameters affecting the performance of the electrodes such as the dosages of the IL and carbon nanotubes and the aqueous pH values were investigated. Experimental results indicated that the optimal composition of the electrode filling material was 47.6% [C 1 C 4 Sim]NTf 2 , 47.6% tetrabutylphosphonium bis(trifluoromethanesulphonyl)imide (TBPNTf 2 ) and 4.8% carboxylic multi-walled carbon nanotubes (MWCNTs-COOH). Under the selected conditions, the proposed electrodes showed a good linear response in the concentration range of 10 −10 –10 −5 mol L −1 and had a detection limit of 4.1 × 10 −11 mol L −1 . No great interference from common metal ions was found. The proposed electrodes were applied to determine Hg 2+ in seafood samples; the results were comparable to those of the direct mercury analyzer.
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DOI
高影响因子
IONICS
·
2023
·Vol. 29
·期 5
·1803-1812
·
IF 2.8
Lou Ping,Li Long,Wu Yiyun,Yue Lingping,Wang Yao,Tang Shun,Zhang Weixin,Cao Yuancheng
Li–air battery-based solid electrolyte can better protect the lithium anode from the corrosion of other components and effectively block the risk of ignition and explosion caused by the lithium dendrite penetrating the dielectric layer. In this work, Li-containing ionic liquid (Li-IL) is absorbed in NH 2 -MIL-101(Cr) metal–organic frameworks (MOFs) to form a functional filler and further incorporated the filler into polyethylene oxide (PEO) to fabricate composite solid electrolyte (Li-IL@NH 2 -MIL-101(Cr)/PEO). The lithium anode and the air cathode were modified with Li-IL@NH 2 -MIL-101(Cr)/PEO, and the integrated solid-state Li–air batteries were prepared by roller pressing. Taking advantage of nanostructured Li-IL@NH 2 -MIL-101(Cr), fast lithium–ion transportation is achieved in the bulk and across the electrode/electrolyte interface. As a result, the ionic conductivity of the Li-IL@NH 2 -MIL-101(Cr)/PEO reaches 3.1 × 10 –4 S/cm, the Li–air battery using the Li-IL@NH 2 -MIL-101(Cr)/PEO as solid electrolyte exhibited a high specific capacity of 11,682 mAh/g and remarkable cycling stability of 122 cycles.
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DOI
高影响因子
Reaction Kinetics Mechanisms and Catalysis
·
2019
·Vol. 127
·期 2
·715-726
·
IF 1.428
Zhang Wei-Hong,Zhou Yu-Chen,Du Chen-Hui,Gao Min,Liu Shan-Shan,Liu Ping,Li Yong-Xin
A basic ionic liquid containing aminopropylimidazolium moiety and OH ‒ anion was immobilized on silane-functionalized graphene oxide (GO) by a condensation process, followed by an anion-exchange reaction. The properties of the resulting GO-[Ap-im]OH material were characterized using extensive techniques including FTIR, XPS, AFM, TGA, etc. The material could be used as a transesterification catalyst, affording the expected ester products in good yields under mild reaction conditions. This GO-[Ap-im]OH material with amino groups shows higher activity than GO-[Ap-im]Cl without amino groups. Furthermore, this catalyst could easily be separated from the reaction mixture by filtration and recycled at least 6 times without a noticeable decrease in the catalytic activity. The prominent performance of GO-[Ap-im]OH is attributed to the enhanced basicity of combining amine groups and OH ‒ anions as well as less mass-transfer resistance of laminar GO.
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DOI
高影响因子
Science China-Chemistry
·
2013
·Vol. 57
·期 3
·397-401
·
IF 1.327
Zhang QiBo,Hua YiXin,Wang Rui
Direct electroreduction of solid cuprous chloride to prepare copper powder in a “neutral” ambient-temperature ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid (BMIMBF 4 ) was investigated. Cyclic voltammetry of the CuCl powder in a Pt-powder cavity microelectrode exhibited that solid CuCl can be electrochemical reduced in the ionic liquid. Chronoamperometry of the salt powder filled Mo-cavity electrode (current collector) in the ionic liquid further demonstrated the conversion of chloride-to metal inside the cavity, as confirmed by scanning electron microscopy, energy-dispersive X-ray, and X-ray diffraction spectra.
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DOI
高影响因子
ACS Applied Polymer Materials
·
2025
·
IF 4.7
Yikun Ji,Bin Liu,Mingjun Zou,Kaige Yan,Le Ji,Shujuan Liu,Qian Ye,Feng Zhou
Herein, we prepared a poly(ionic liquid)-functionalized hydrogel by grafting a poly(ionic liquid) on the hydrogel surface via surface-initiated polymerization. First, a hydrogel matrix containing an initiator was synthesized through the chemical cross-linking of acrylic acid, acrylamide, N,N′-methylenebis(acrylamide), and the initiator MA-Br. The introduction of Fe3+ ions further enhanced the cross-linking density. After that, we grafted the ionic liquid IL-Cl onto the hydrogel matrix via surface-initiated polymerization. These poly(ionic liquid)-functionalized hydrogels displayed remarkable antibacterial and antifouling properties, attributed to the bactericidal activity of the ionic liquid as well as the high hydrophilicity and low adhesion of the functionalized hydrogel. Notably, the sample of PIL-MA/Gel(4h) achieved antibacterial rates exceeding 99% against two types of bacteria and a removal rate above 96% against two types of algae. Additionally, the hydrogel, after grafting poly(ionic liquid), exhibited improved mechanical strength, water retention, and water lubrication performance, making it a highly effective material for marine antifouling applications.
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产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Yi Chen,Xuedan Xie,Jiangtao Jing,Yonghua Wang,Danfeng Cui,Dan Liu,Chenyang Xue
The combination of pseudocapacitive electrodes with ionic liquid (IL) electrolytes demonstrates a significant synergistic effect in expanding the potential window of supercapacitors, thereby enhancing the energy density of the device. Mn 3 (HHTP) 2 , a metal-organic framework (MOF) with high-density redox-active sites and hierarchical porosity, serves as the electrode material paired with [EMIM][BF 4 ] and [EMIM][TFSI] IL electrolytes. The ion size in [EMIM][TFSI] can be precisely aligned with the electrode pore size, thereby reducing interfacial resistance and enhancing ion accessibility. Optimizing the [EMIM][TFSI]/acetonitrile mass ratio to 4:6 achieves superior electrolyte properties, including an ionic conductivity of 50.4 mS cm −1 and viscosity of 5.24 mPa·s. This design extends operating potential from 8 V to 13 V, increasing energy density to 108.0 Wh kg −1 , representing a 68.8 % improvement over baseline systems. The device retains 94.34 % capacitance after 2000 cycles at 8 V, with specific capacitances of 7.2 F g −1 at 8 V and 4.6 F g −1 at 13 V. These findings establish a new paradigm for interface engineering in high-voltage supercapacitors.
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DOI
高影响因子
Sustainable Energy & Fuels
·
2025
·Vol. 9
·期 4
·1002-1010
·
IF 4.1
Yan Yuan,Yaxin Kong,Xiuping Peng,Lei Zhang,Zeyu Li,Hai Lu
To overcome the application bottlenecks of poly(ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs) related to low ionic conductivity and unstable interface chemistry at both electrodes, Li+-conductive solvate ionic liquid (SIL) and soluble long-chain polysulfide (Li2S6) were introduced into the SPE as a liquid plasticizer and functional additive, respectively. Additionally, an integrated structure with a cathode-supported SPE was adopted to enhance interface contact. The modified PEO-based SPE exhibited excellent comprehensive properties, including high ionic conductivity, Li-ion transfer number, oxidation potential and Li metal compatibility. In particular, the moderate addition of Li2S6 was found to not only decrease the PEO crystallinity through strong interaction and uniform dispersion but also effectively stabilized the Li surface and suppressed dendrite growth via chemical reduction. The synergistic effect of the two functional agents and the integrated design endowed the Li metal battery with high reversible capacity and superior cycle stability when operated at room temperature.
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DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2025
·
IF 6.3
Kenan Sun,Yingxue Liu,Jiaqian Duan,Ya Li,Xugeng Guo
Background Functionalized composite coatings play a key role in protecting metals and alloys against corrosion in harsh environments. Methods Layered double hydroxide (LDH) modified with choline benzoate ionic liquid is successfully fabricated through coprecipitation and ion-exchange strategies, and then incorporated into an epoxy to generate the CB-LDH/EP composite coating. The anti-corrosive and self-healing abilities of the CB-LDH/EP are comprehensively evaluated. Significant findings The addition of CB-LDH active nanocontainer induces a clear increase in the polarization resistance of the coatings (from 9.36 × 10 6 to 4.35 × 10 8 Ω cm 2 ). Moreover, the localized corrosion of the coating surface can be considerably retarded according to the long-term immersion experiments. Such an obvious enhancement in the corrosion resistance is attributed to the synergistic mechanism between the components of the polymer coating. The inherent lamellar structures of LDH enhance the physical barrier effect of the coating. Benefiting from the outstanding ion-exchange behavior, the LDH can serve as a storage station for corrosive anions like chloridion, and simultaneously the released benzoate anions from LDH galleries play a role of active corrosion protection. In addition, the choline cations can be adsorbed to the LDH surface because of their polar groups, indicative of a further improvement in the anti-corrosive performance of the coating.
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产品关联
DOI
高影响因子
ULTRASONICS SONOCHEMISTRY
·
2024
·
IF 8.7
Hongyi Zhao,Junping Wang,Yutong Han,Xin Wang,Zunlai Sheng
This work offered a productive technique for resveratrol extraction from Polygonum Cuspidatum ( P. Cuspidatum ) using ionic liquids in synergy with ultrasound-enzyme-assisted extraction (UEAE). Firstly, ionic liquids with different carbon chains and anions were evaluated. Subsequently, a comprehensive investigation was carried out to evaluate the effect of seven crucial parameters on the resveratrol yield: pH value, enzyme concentration, extraction temperature, extraction time, ultrasonic power, concentration of ionic liquid (IL concentration) and the liquid–solid ratio. Employing the Plackett-Burman Design (PBD), the critical factors were effectively identified. Building upon this foundation, the process was further optimized through the application of Response Surface Methodology (RSM) and an Artificial Neural Network-Genetic Algorithm (ANN-GA). The following criteria were determined to be the ideal extraction conditions: an enzyme concentration of 2.18%, extraction temperature of 58 °C, a liquid–solid ratio of 29 mL/g, pH value of 5.5, extraction time of 30 min, ultrasonic power of 250 W, and extraction solvent of 0.5 mol/L 1-butyl-3-methylimidazolium bromide. Under these conditions, the resveratrol yield was determined to be 2.90 ± 0.15 mg/g. Comparative analysis revealed that the ANN-GA model provided a better fit to the experimental data of resveratrol yield than the RSM model, suggesting superior predictive capabilities of the ANN-GA approach. The introduction of a novel green solvent system in this experiment not only simplifies the extraction process but also enhances safety and feasibility. This research paves the way for innovative approaches to extracting resveratrol from botanical sources, showcasing its significant potential for a wide range of applications.
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DOI
PubMed
高影响因子
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