Small
·
2026
·
IF 11.8
Qiang Wu,Yi Li,Xiyang Xu,Zhao Xu,Zhenyu Gao,Rongqing Xu,Jin Zhao,Yanwen Ma
Ionic liquid-based quasi-solid polymer electrolytes (ILQSPEs) are promising for flexible and transparent energy storage devices. Nevertheless, owing to the lack of ILQSPEs combining high transparency with efficient ionic transport, their application in flexible transparent lithium-ion batteries (FTLIBs) remains unexplored. To break through this bottleneck, herein we propose a crystallinity regulation strategy for the co-optimization of the electrolyte's crystalline-amorphous phase distribution and ionic transport channels, thereby simultaneously achieving high optical transparency and ionic transport performance. Specifically, the amorphous polymer polymethyl methacrylate (PMMA) is incorporated into poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based ILQSPEs, and its doping ratio is precisely tuned to modulate the crystallinity of the resulting electrolyte membranes. The optimal membrane (PVDF-HFP/PMMA mass ratio of 4:3) exhibits an outstanding optical transmittance of 88.2%, a satisfactory ionic conductivity of 1.91 × 10 −4 S cm −1 , and a high lithium-ion transference number of 0.55. The optimized electrolyte membranes are integrated into FTLIBs; the devices achieve an unprecedented cycle life of 300 cycles at 5 µA cm −2 with 79.9% capacity retention, along with a high specific capacity of 17.9 µAh cm −2 , a high transparency of 61.2% at 550 nm, and a desirable energy density of 44.8 µWh cm −2 . This work provides a novel ILQSPE design strategy for high-performance FTLIBs.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Cuizhen Yang,Tianyi Wang,Hao Yuan,Chenghao Yao,Wei Su,Guoqiang Liu,Haiyan He,Dongming Liu,Huajie Huang
A facile, scalable wet-chemical strategy is developed for in-situ Pd nanoclusters anchored on ionic liquid (IL)-modified Ti 3 C 2 T x nanosheets. • IL modification tunes Ti 3 C 2 T x surface charge, improves its stability and antioxidant capacity, and strengthens electrostatic interaction with Pd precursors to form active grain boundaries. • Pd/IL-Ti 3 C 2 T x shows superior FAOR & MOR electrocatalytic performance: high activity, good CO-poisoning resistance and favorable long-term stability. • Theoretical simulations confirm IL - Ti 3 C 2 T x modulates Pd electronic structure, weakens CO adsorption, and enables the enhanced electrocatalytic activity. Both direct formic acid fuel cell (DFAFC) and direct methanol fuel cell (DMFC) with high energy-conversion efficiency have garnered considerable attention against the backdrop of continuously increasing energy demand, while the actual performance largely depends on the catalytic properties of their anode catalysts. In this work, we present a facile and scalable wet-chemical strategy for synthesizing palladium (Pd) nanoclusters in situ anchored on ionic liquid (IL)-modified two-dimensional Ti 3 C 2 T x MXene nanosheets, which are capable to serve as highly efficient anode catalysts for both formic acid and methanol electrooxidation. The incorporation of IL not only effectively tune the surface charge characteristics of Ti 3 C 2 T x nanosheets to enhance their structural stability and antioxidant capacity, but also strengthens the electrostatic interactions between Pd species and substrate to induce the formation of catalytically active grain boundary sites. As a result, the as-obtained Pd/IL-Ti 3 C 2 T x nanostructure exhibits excellent electrocatalytic performance for both formic acid and methanol oxidation, including large electrochemically active surface areas, high mass/specific activities, strong CO resistance, and dependable long-term stability, which far outperform that of conventional Pd catalysts supported on carbon black, carbon nanotubes, reduced graphene oxide, and pristine Ti 3 C 2 T x substrates. Theoretical simulations further confirm that the stable configuration and optimized electronic structure of Pd nanoclusters on Ti 3 C 2 T ₓ weaken their CO adsorption ability relative to Pd nanoparticles; this provides the foundation for their dramatically enhanced and sustainable electrocatalytic performance. A facile and scalable wet-chemical strategy is developed to synthesize Pd nanoclusters in situ anchored on ionic liquid (IL)-modified Ti 3 C 2 T ₓ nanosheets. The IL modification enhances the structural stability and antioxidant capacity of the Ti 3 C 2 T ₓ support while promoting the formation of catalytically active grain boundary sites via strengthened electrostatic interactions. The resulting Pd/IL-Ti 3 C 2 T ₓ hybrid exhibits outstanding electrocatalytic performance for both formic acid and methanol oxidation, including high mass/specific activities, superior CO tolerance, and excellent long-term stability. Theoretical simulations reveal that the optimized electronic structure of Pd nanoclusters weakens CO adsorption, underpinning the enhanced and sustainable performance. Download: Download high-res image (133KB) Download: Download full-size image
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Xin Shi,Qiuyan Bi,Zizhen Peng,Zhicheng Wang,Xiaodan Zhang,Yakai Lin,Wenzhong Ma,Shiai Xu
Thin-film composite (TFC) nanofiltration (NF) membranes generally face a challenging balance between permeability and selectivity when separating saline water with a high Mg 2+ /Li + ratio, and are also vulnerable to fouling and operational instability during prolonged operation. This study presents a dual ionic liquid (IL) mediated reverse interface polymerization (RIP) strategy. A hydrophilic polar intermediate layer is generated on the PES substrate via the co-deposition of tannic acid (TA) and [HEMIm][BF 4 ]. Subsequently, the organic phase containing TMC is first introduced on the surface of this intermediate layer, and then the PEI aqueous phase doped with hydrophobic IL ([C 6 mim] [Tf 2 N]) is introduced to trigger the RIP reaction. TIL-PIL membranes with rapid hydration behavior, a high positive surface charge (IEP pH = 9.5), excellent antifouling properties, and a uniform pore-size distribution were constructed for Mg 2+ /Li + separation. The separation factor (SF) of the membrane attained 88 at a feed Mg 2+ /Li + mass ratio of 300, while maintaining a high salt water permeation flux of 13.58 LMH. Throughout the permeation process, the Mg 2+ /Li + ratio diminished from 300 in the feed to 1.2 during permeation. Moreover, the membrane demonstrated exceptional long-term stability throughout a continuous 100 h filtration experiment, with the Mg 2+ rejection rate consistently surpassing 98.5%. Compared with the RNFm membranes prepared on PES substrates without IL incorporation, the TIL-PIL membranes exhibit significantly improved antifouling performance.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Peixin Hong,Fengyue Yin,Rongkai Cui,Yongsheng Lin,Xiaoyan Chen,Ting Qiu,Jie Chen
Sec -butyl alcohol (SBA) is a crucial chemical intermediate and solvent in organic synthesis. The transesterification of sec -butyl acetate (SBAC) with methanol (MeOH) is a key SBA production process due to straightforward reaction conditions and raw materials easily available, but conventional catalysts suffer from high corrosivity and poor recyclability, increasing costs. Herein, we report a series of novel heterogeneous catalysts of TEOS-[Ch][Im]- x with differential loading amount of choline imidazolate ([Ch][Im]) supported on SiO 2 . [Ch][Im], for the first time, is employed not only as a basic catalyst to facilitate the formation of SiO 2 , but also as a catalytic moiety immobilized on the SiO 2 matrix via H-O hydrogen bonds, thus enabling the fabrication of efficient SiO 2 -based catalysts through a one-pot reaction. By optimization of catalytic conditions for optimal catalyst TEOS-[Ch][[Im]-12, over 50% SBAC conversion is achieved in 60 min, and the conversion rate reaches 61.58% under the reaction temperature of 67 ℃ , nMeOH: nSBAC = 8.8:1, and catalyst dosage 9 wt% conditions after response surface methodology (RSM) optimization. More importantly, the catalyst exhibits excellent reusability and cycling stability without any noticeable deactivation over five consecutive reaction cycles. Density functional theory (DFT) calculations and in situ diffuse reflectance infrared Fourier transform spectroscopy ( in situ DRIFTs) results further confirm that the functionalized [Im] − anions could activate methanol to form the key adsorbed CH 3 O* intermediate, which then undergoes a nucleophilic reaction with SBAC to yield SBA. This facile synthetic strategy thus endows the catalyst with considerable application potential for green catalytic transesterification processes.
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高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2026
·Vol. 49
·期 6
·e70473
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IF 3.6
Man Long,Yuanliang Zhang,Jinghai Chen,Xingyu Zhao,Yan Huang,Zhenxia Zhao,Lei Kang,Liqin Zhou
Nicotine, a tobacco alkaloid with biological activity and unique pharmacological characteristics, holds significant value across pharmaceutical, agricultural, and industrial applications. Given these attributes, there is a growing demand for efficient nicotine extraction from tobacco and its by-products. In this study, a novel ionic liquid (IL)-decorated boron nitride/poly(N-isopropylacrylamide) composite hydrogel (IL-BNNs@P) was synthesized for the effective extraction of nicotine from tobacco absolute oil. Scanning electron microscopy and Fourier-transform infrared analyses confirmed the successful integration of IL-functionalized BNNs within the gel's network structure. This hydrogel revealed an adsorption capacity of 81.49 mg·g −1 with 93.5% extraction efficiency. Furthermore, this hydrogel exhibited exceptional selectivity, with distribution coefficients ( K d ) for nicotine (6.27 L·g −1 ) being 1–2 orders of magnitude higher than those for co-existing impurities, yielding selectivity coefficients (α) of 62.6–174.9. Additionally, after five consecutive adsorption-desorption cycles, the extraction efficiency showed a slight decrease from 93.5% to 90.0%, demonstrating excellent reusability. Notably, rapid nicotine desorption was achieved at 40°C within 15 min. This strategy streamlines the nicotine extraction process while providing a promising pathway for advancing green chemistry techniques in the tobacco industry and related fields.
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PubMed
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Haichao Fang,Hongyu Lv,Yang Li,Mingren Fan,Siwei Song,Yi Wang,Qinghua Zhang
Catocene offers excellent catalytic activity in propellants but tends to migrate, easily leading to unstable combustion and safety hazards. To address this limitation, abundant ferrocene derivatives are synthesized by modifying the molecular polarity or enhancing interaction forces. However, most of these derivatives exist as solids and exhibit poor dispersibility in the propellant matrix. Therefore, we design a series of ferrocene-based room-temperature ionic liquids (F1–F4) as alternatives. Especially, F1 enhances weak interactions (such as hydrogen bonding and van der Waals forces) with ammonium perchlorate, thereby fundamentally suppressing migration. Moreover, owing to the retention of the active ferrocene unit, F1 is expected to exhibit excellent combustion catalytic performance comparable to catocene. Experiments confirmed that F1 could uniformly disperse within the compound solid propellant (CSP) and maintained no migration. Further, adding 2 wt % F1 increased the heat of explosion to 5373 J·g–1 (15.6% rise) and promoted the burning rate to 6.54 mm·s–1, approximately 4.0 times faster than the catalyst-free baseline (1.37 mm·s–1) and 1.9 times faster than a catocene-containing CSP (3.47 mm·s–1). The combustion temperature also rose from 1593.1 to 1972.3 °C. These results demonstrate the superior performance of F1, marking its potential as a promising burning rate catalyst substitute for catocene.
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PubMed
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Yimin Hu,Meiling Tang,Jin Ma,Tao Wei,Ming Shen
Hydrogels are regarded as promising materials for flexible electronics and wearable sensors. However, it remains a significant challenge to simultaneously achieve high mechanical robustness, environmental tolerance, high electrical conductivity, antibacterial properties, self-healing ability, strong adhesion, and multimodal sensing performance in a single system. Addressing this, the multifunctional hydrogel (denoted as PCET) was developed by integrating polyacrylamide (PAM), biocompatible natural polymer cationic hydroxypropyl trimethylammonium guar gum (CGG), the ionic liquid 1-ethyl-3-methylimidazolium bromide ([Emim]Br), and natural polyphenol tannic acid (TA) through a synergistic cross-linking strategy. The PCET hydrogel demonstrated ionic conductivity (0.8 S/m) and functioned as a multimodal sensor, with strain sensitivity (GF = 1.65), reliable cycling stability, and responsive detection of pressure and temperature (TCR = 0.51%/°C). Furthermore, it exhibited strong substrate adhesion (∼50 kPa) and supported real-time motion monitoring, handwriting recognition, and electrocardiogram detection. [Emim]Br acted as a multifunctional agent that enhanced mechanical properties (toughness: 441 kJ·m–3, strength: 124 kPa, elongation: 840%) and conferred both antifreezing (freezing point: −28.65 °C) and antibacterial capabilities. Moreover, the chemical reaction between Fe3+ and TA can promote rapid gelation. This work underscored the versatile role of [Emim]Br and provided a viable strategy for the development of multistimulus-responsive wearable sensor devices based on hydrogels.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2026
·
IF 8.7
Ruoyan Yang,Zishuo Zhang,Rui Chen,Lingxiao Gong,Jing Wang
[Bmim]Cl-assisted xylanase hydrolysis enriches FAX 3 to 258.39 mg/g FOs. • FOs increased sialidase activity but suppressed that of α-N-acetylglucosaminidase and β-galactosidase vs control ( p < 0.05). • FOs with higher FAX 3 /FAX 2 ratio showed significantly stronger inhibition of exo -α-L-fucosidase ( p < 0.05). Feruloylated oligosaccharides (FOs) are bioactive conjugates that exhibit promising synergistic effects on gut microbiota modulation and intestinal barrier protection, yet their efficacy is highly structure-dependent. This study developed a synergistic strategy combining ionic liquid (IL, 1-butyl-3-methylimidazolium chloride) pretreatment with xylanase hydrolysis to selectively produce feruloylated arabinoxylobiose (FAX 2 ) and feruloylated arabinoxylotriose (FAX 3 ) from corn bran. The IL-pretreated FOs (FOsA) achieved a FAX 3 /FAX 2 ratio of 4.86, which was 2.16-fold higher than that of the non-pretreated group (FOsB). Although in vitro assays confirmed that FOs were not directly utilized as a carbon source by Akkermansia muciniphila ( A. muciniphila ), both FOsA and FOsB significantly modulated its mucin-degrading enzyme activities ( p < 0.05). Specifically, both fractions increased sialidase activity while reducing α- N -acetylglucosaminidase and β-galactosidase activities. Notably, FOsA, with a higher FAX 3 /FAX 2 ratio, exhibited significantly stronger inhibition of exo -α-L-fucosidase activity than FOsB ( p < 0.05 ). These findings demonstrate that FOs act as effective modulators of A. muciniphila enzymatic functions rather than metabolic substrates, and that their fine structural composition critically influences their regulatory potency on mucin-degrading enzymes, with potential implications for maintaining intestinal mucus barrier integrity. Download: Download high-res image (320KB) Download: Download full-size image
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DOI
PubMed
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Tingyu Li,Yixin Wang,Li Hao,Yiping Sun,Shujuan Liu,Qian Ye,Feng Zhou
Herein, nitrogen, phosphorus, and fluorine codoped MXene (N,P,F-MXene) was synthesized via thermal treatment using 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) as the doping precursor. Comprehensive characterization confirmed the effective incorporation of nitrogen, phosphorus, and fluorine into the MXene lattice. Tribological testing revealed that N,P,F-MXene demonstrated excellent performance as an additive in lubrication, showing significantly reduced friction and wear. Specifically, it achieved an average COF of 0.109 and reduced wear volume by 62.5% versus the base oil. Furthermore, the N,P,F-MXene-based lubricant exhibited good adaptability under extreme operating conditions, sustaining stable tribological behavior over a broad load, frequency, and temperature range. Notably, its load capacity reached 500 N. Mechanistic analysis indicates that its superior performance originates from the synergistic effects of the physical filling and adsorption of N,P,F-MXene, coupled with the formation of a tribo-chemical film with low shear strength enriched with nitrogen/phosphorus/fluorine compounds and metal oxides in the friction process. This study provides an effective strategy for heteroatom doping of MXene and offers a promising pathway toward high-performance oil-based lubricant additives.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Ning Liu,Jie Wang,Huiyu Yang,Fan Cheng,Shuguang Bi,Guoliang Liu,Ying Ou,Hai Liu,Chunli Gong
In order to improve the proton conductivity, CH 3 OH barrier performance and long-term durability of proton exchange membranes in direct methanol fuel cells (DMFCs), herein, a novel functional nanofiber substrate (IL-ZIF-8@PVDF) was prepared by in situ growing metal-organic framework (ZIF-8) on poly(vinylidene fluoride) (PVDF) nanofibers, followed by modification with ionic liquid (IL) containing sulfonic acid groups. PVDF nanofibers can provide flexible mechanical support for ZIF-8, thereby effectively solving the processing difficulties of ZIF-8 caused by its brittleness. Further IL modification of ZIF-8 can not only increase the compatibility between ZIF-8@PVDF and the filling polymer, but also utilize the continuous PVDF nanofiber network to establish long-distance continuous H + transport pathways within the membrane. The as-prepared sulfonated poly (ether ether ketone) impregnated IL-ZIF-8@PVDF composite membrane showed a very high proton conductivity of 161.92 mS cm −1 (80 °C). Meanwhile, the presence of nanofiber backbone and ZIF-8 inside the membrane effectively limited the swelling and methanol permeation. The peak power density (PPD) of the DMFC output equipped with the membrane is up to 114.86 mW cm −2 (2 M methanol, 80 °C), 1.28 times that of the commercial Nafion 211. The durability test suggested that the composite membrane assembled DMFC possessed excellent open circuit voltage stability (only 6.3 % attenuation after 320 h of continuous testing). This work provides a new design idea for PEMs for DMFCs.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Ruirui Wang,Hasnain Nawaz,Linbo Huang,Sheng Zhong,Shuang Wei,Bin He,Ruixia Liu,Suojiang Zhang
Electrochemical CO 2 reduction to highly selective ethylene is particularly desirable yet challenging. The competition between methane and ethylene in the CO 2 RR process underscores the critical necessity of designing the catalyst for ethylene by suppressing the methane pathway. Herein, we introduced controllable Cu(II)/Cu(I) interfaces by regulating the ratio of ionic liquids (ILs) and H 2 O. The Cu x O-IL4 catalyst with main CuO/Cu 2 O structure, exhibits a high Faraday efficiency toward C 2 H 4 (∼54 %) and less CH 4 (∼1 %) under 250 mA·cm −2 current density at −1.18 V (vs RHE). Experimental and theoretical analyses demonstrate that Cu(I) sites favor CO bridge formation, while Cu(II) sites preferentially generate CO atop on Cu x O-IL4 catalysts. The Cu(II)/Cu(I) interface in Cu x O-IL4 facilitates the generation of CO bridge intermediates, thereby lowering the energy barrier for *CO dimerization and also preventing *CO hydrogenation to CH 4 formation, thus enhancing the selectivity of CO 2 -to-ethylene conversion. The study provides a novel approach for precisely controlling CO adsorption configurations to enhance CO 2 RR selectivity toward high-value multicarbon products formation.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Tianxiang Zhang,Lihong Guo,Wenlei Xie,Shuaixia Hou,Shanshan Li,Yifan Li
In this study, a heterogeneous polyoxometalate-ionic liquid hybrid catalyst was successfully constructed on a hierarchical porous ZrTiO 4 support for one-pot biodiesel production from acidic oils. The three-dimensional ordered macro-mesoporous structure of the catalyst significantly facilitated reactant diffusion and increased the accessibility of active sites, leading to superior catalytic activity compared to non-hierarchical analogues. The immobilized polyoxometalate-ionic liquid composite functioned as integrated Brønsted-Lewis acid sites, substantially boosting the overall acidity. This catalyst demonstrated high efficiency in simultaneously converting triglycerides and free fatty acids into biodiesel. Under optimized reaction conditions, including a methanol-to-oil molar ratio of 35:1, a temperature of 130 °C, a catalyst loading of 8 wt%, and a reaction time of 6 h, it achieved 92.7% oil conversion alongside complete conversion of free fatty acids. Kinetic analysis revealed an ultralow activation energy of 35.2 kJ·mol −1 , which is significantly lower than values reported in the literature. In addition, the catalyst demonstrated robust tolerance to both water and free fatty acids in the feedstocks and retained significant activity after five reuses, showing great potential for sustainable biodiesel production from low-cost feedstocks.
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高影响因子
危险品化学品经营许可证（带存储）