INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Yichen Zou,Zikai Zhou,Jian Kang,Zhenwei Yuan,Dan Hou,Hualin Jiang,Jing Chen,Wanming Xiong
Six highly unsaturated diimidazole ionic liquids (ILs) were synthesized and applied to catalyze the condensation of furfural into furoin. The effects of solvents and reaction conditions on the reaction were also investigated. Results showed that the δH(C-2) chemical shift of the imidazolium ring could reflect the catalyst’s catalytic performance. CH2Cl2 facilitated the deprotonation of the ILs and product separation, leading to the highest furoin yield. While the presence of 10% acetone could enhance contact between the catalyst and furfural, thereby increasing the yield. RSM, ANN, and SVR demonstrated the reliability and accuracy of the experimental results. The kinetic calculation was consistent with the observed rapid completion of the reaction under mild conditions. What’s more, energy-level calculations revealed that the nucleophilic reaction with the second furfural molecule to form furoin constitutes the rate-determining step. This work is expected to provide valuable guidance for catalyst design and process optimization.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xiaoke Li,Jinjian Lu,Rui Han,Xiaoqing Jing,Yuyu Zhang,Jintao Wang,Ren Sheng,Ping Chen
Dual-site passivation via [VEIm]DCA: DCA − heals Pb 2+ defects, [VEIm] + stabilizes iodides. • Synergy triples PLQY (56%), aligns energy levels, and boosts mobility tenfold. • Deep-red QLEDs: 14.2% EQE at 684 nm and 2.8-fold lifetime gain. • Intramolecular ionic synergy: a new design principle for stable perovskites. Achieving high-efficiency and operationally stable deep-red perovskite quantum dot light-emitting diodes (QLEDs) is crucial for advanced optoelectronics but remains challenging, primarily due to the inherent trade-off between defect passivation and charge transport. Here, we propose a novel dual-site ligand engineering strategy using the ionic liquid 1-vinyl-3-ethylimidazolium dicyanamide ([VEIm]DCA) for CsPbI₃ quantum dots. This approach harnesses the intrinsic synergy within a single molecule: the DCA − anion heals iodine vacancies via coordination to under-coordinated Pb 2+ , while the [VEIm] + cation reinforces the lattice through a C–H···I hydrogen-bonding network. This synergistic action effectively passivates defects (tripling the film PLQY to 56%), optimizes energy level alignment, and enhances charge carrier mobility by over an order of magnitude. Consequently, the resulting deep-red QLEDs achieve a peak external quantum efficiency of 14.2% at 684 nm with a low turn-on voltage of 2.2 V. Notably, operational stability is substantially enhanced, with a T₅₀ lifetime of 64 min at 100 cd m −2 under ambient conditions—a ~ 2.8-fold improvement. This work establishes the synergistic anion-cation pair within a single ionic liquid as a highly efficient and streamlined design principle for harmonizing performance and stability in perovskite optoelectronics.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·
IF 6.7
Yu Zhang,Yuanxian Wu,Limeng Qu,Zupeng Chen,Junhua Zhang
Lignin, a crucial renewable biomass component, represents a high-value pathway for achieving efficient biomass utilization. However, its complex and stable structure hinders the development of effective lignin depolymerization catalysts. In this study, the water-soluble H3PMo12O40 was combined with [Bmim]+ to form hydrophobic [Bmim]3PMo, which was supported on ZrO2 at various weight ratios to prepare [Bmim]3PMo@ZrO2 catalysts. These catalysts demonstrate excellent activity in lignin oxidative depolymerization, selectively producing monomeric phenolics (methyl vanillate, vanillin, methyl syringate, syringaldehyde). The 40 wt % [Bmim]3PMo@ZrO2 catalyst achieves optimal performance with 88.5% lignin conversion and 12.4 wt % phenolic yield. Two-dimensional nuclear magnetic resonance heteronuclear single quantum coherence (2D HSQC NMR) analysis confirms that the catalyst effectively cleaves the critical β–O–4 linkages in lignin. Furthermore, [Bmim]3PMo@ZrO2 has excellent reusability with stable performance over five cycles. These findings establish [Bmim]3PMo@ZrO2 as a promising lignin valorization candidate, inspiring efficient catalyst design for producing high-value aromatic compounds.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Wenfang Cui,Yongmei Sun,KeYu Zhang,Chengcheng Shi,Peng Fu,Mei Ma
The development of high-performance TiP 2 O 7 anode materials has been fundamentally limited by their intrinsically poor electronic conductivity and slow Li + diffusion kinetics. Herein, we report an innovative ionic liquid-mediated strategy that simultaneously engineers oxygen vacancies and nitrogen-doped carbon in hierarchical TiP 2 O 7 architectures. Through pyrolysis gas reduction, oxygen vacancies are introduced into the TiP 2 O 7 lattice, promoting the formation of C P bonds and defect energy levels while broadening the lithium ions transport channels. The concurrent formation of a nitrogen-doped carbon matrix, rich in pyridinic-N configurations, establishes a highly conductive network and optimizes electrode-electrolyte interfacial dynamics. The co-engineered material delivers exceptional rate capability (301.5 and 241.7 mA h g −1 at 5 and 10 A g −1 , respectively), doubling the capacity of the ionic liquid-free counterpart. First-principles calculations elucidate the underlying mechanisms: oxygen vacancies substantially reduce the Li + diffusion barrier by 29% (from 0.42 eV to 0.30 eV), while synergistic coupling with nitrogen-doped carbon creates a 0.73 eV in-gap state that effectively boosts charge transfer kinetics. This multiscale engineering strategy, which synergistically integrates atomic-scale defect control with mesoscopic interface optimization, establishes a generalizable design principle for next-generation high-rate electrode materials.
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ENVIRONMENTAL RESEARCH
·
2026
·
IF 8.2
Li-Min Yu,Yong-Ya Zhang,Li-Jing Wang,Huan-Ning Li,Pan Li,Jia-Qi Men,Wei Wei,Shi-Jie Li
Two-dimensional semiconductor nanosheets represent a kind of promising photocatalysts for environmental improvement and clean production, however, insufficient interface defects and weak built-in electric field limit resultful electron-hole separation and photocatalytic performance. Herein, we propose a novel strategy involving in situ confined aggregation of bismuth oxybromide (BiOBr) using poly (ionic liquid) (PIL) networks. By employing a bromine-containing imidazolium ionic liquid as both Br source and monomer, PIL networks confined defective BiOBr composite (BiOBr-PIL) is synthesized through in situ polymerization that spatially restricts the aggregation of BiOBr nanosheets. At the optimal Bi/VBImBr ratio of 1:3, the positively charged PIL layer around BiOBr nanosheets establishes a built-in electric field and induces the electrostatic repulsion, effectively suppressing nanosheet aggregation and promoting the formation of oxygen vacancies. These features collectively enhance charge separation and accelerate reactive radicals production, leading to significantly improved photocatalytic activity in both tetracycline degradation and CO 2 photoreduction, coupled with excellent stability and practical application potential.
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INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2018
·Vol. 54
·期 2
·583-590
·
IF 2.383
Zhi-Wei Liu,Zhou Yue,Xin-An Zeng,Jun-Hu Cheng,Rana Muhammad Aadil
Summary Haematococcus pluvialis is a proficient source of natural antioxidant astaxanthin. However, the efficient extraction of astaxanthin from this microalga remains a great challenge due to the presence of the tough and non-hydrolysable cell walls. In this study, ionic liquid (IL) pretreatment was used for deconstruction of cell wall method. Imidazolium-based ILs exhibited higher cell disruption capability than pyridinium-based and ammonium-based ILs. After the ILs determination, 1-butyl-3-methylimidazolium chloride ([Bmim] Cl) was the most efficient method for cell wall deconstruction that leads to the highest astaxanthin extractability. More than 80% astaxanthin was extracted from H. pluvialis under mild conditions (pretreatment with 40% IL aqueous solution at 35 °C, followed by methanolic extraction at 50 °C). In addition, [Bmim] Cl showed the excellent recyclability, and negligible loss of astaxanthin during IL pretreatment was observed. The present work demonstrates that the combination of IL pretreatment and organic solvent extraction was an energy efficient and eco-friendly process for the astaxanthin recovery from H. pluvialis .
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Corrosion Communications
·
2026
·
IF 10.7
Tingting Zhang,Rui Ma,Tao Liu,Zhenyu Chen
A multifunctional ionic liquid additive has been designed and synthesized for the aluminum-air battery. • Cation-dominated parallel adsorption enables effective corrosion protection with reversible desorption during discharge. • Vertically adsorbed anions deliver dual functions: filling adsorption gaps to reinforce corrosion inhibition and elevating the cathodic discharge voltage. Aluminum (Al)-air batteries have recently attracted considerable interest due to their high energy density, low cost, and the lightweight properties of Al. However, the self-corrosion of Al anodes hinders their commercial applications. This study aims to address these limitations by designing and synthesizing persulfate-based ionic liquid ([C 12 MIM] 2 [S 2 O 8 ]) as electrolyte additive. Results demonstrate that [C 12 MIM] 2 [S 2 O 8 ] additive significantly enhances corrosion resistance of the Al anodes. Consequently, the full battery exhibits appealing performance characteristics, including a superior energy density of 2796.9 Wh kg -1 at 20 mA cm -2 , a favorable operating voltage, and anode utilization of 70.3%. Characterization analyses, combined with theoretical calculations, further elucidate the mechanism of corrosion inhibition and observed performance enhancements. Therefore, this work offers a novel perspective on design of electrolyte additives, providing a potential approach to improve the performance and commercial viability of Al-air batteries.
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JOURNAL OF HAZARDOUS MATERIALS
·
2026
·
IF 10.6
Baiyun Jin,Fan Ye,Wei zhou,Guoyu Xiang,Zhoucheng Li,Yu Ding,Wentao Ma,Yuanzhu Mi
Non-covalent interactions predominated by hydrogen bonding are of vital importance to the demulsification of oil-water emulsions. This study reports a Bacillus subtilis -inspired ionic liquid demulsifier (MEB-12) with multiple hydrogen-bonding sites for the treatment of oil-in-water (O/W) emulsions. The two hydrophobic “tails” of this demulsifier facilitate rapid migration within the emulsion and enable precise localization to the oil droplets, while the four symmetric hydrophilic head groups form a multivalent hydrophilic domain. This domain outcompetes interfacial asphaltenes by forming stronger multidentate hydrogen bonds with water molecules, mediated by its abundant ether, ester, and bromide hydrogen-bonding sites, thereby destabilizing the emulsion film. When treating O/W emulsions with an oil content of 0.2% at ambient temperature, MEB-12 at a concentration of 10 mg/L achieved a light transmittance (T %) of 98.4% and an oil removal efficiency (ORE) of 99.95%, demonstrating excellent demulsification performance at low dosage. Meanwhile, MEB-12 exhibited remarkable tolerance toward high salinity. To investigate the competitive adsorption mechanism between demulsifier and asphaltenes, zeta potential, dynamic interfacial tension, droplet coalescence time, and three-phase contact angle were employed as characterization techniques. Additionally, density functional theory was utilized to analyze the electrostatic potential on the molecular surface. Meanwhile, the independent gradient model based on Hirshfeld partition analysis and bond critical point were adopted to explore hydrogen bonding interactions. These characterization and computational simulation results demonstrated that MEB-12 exhibited excellent interfacial activity. Specifically, MEB-12 triggered the reconfiguration of the oil-water interfacial film via non-covalent interactions, thereby disintegrating the rigid film, promoting the coalescence of emulsified droplets, and achieving efficient demulsification.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Di Yu,Xianfeng Guan,Xiaodong Wei,Wanzhen Wu,Shuyu Zhang,Guangpeng Ma,Xinpu Zhou,Cuicui Li,Jiapeng Yang,Yu Luo,Shuang Wang
Synthesis of polymeric ionic liquid HT-PEM with phase separation structure • OHPBI-GPIL-PIM 7.5 has a high PA retention of 89.1%. • The proton conductivity of OHPBI-GPIL-PIM 7.5 membrane is 107.0 mS cm −1 at 180 °C. • OHPBI-GPIL-PIM 7.5 has a peak power density of 1.1 W cm −2 at 180 °C. • The voltage decay rate of the OHPBI-GPIL-PIM 7.5 membrane electrode is 0.05 mV h −1 . Achieving an optimal balance between peak power density and long-term stability in high-temperature proton exchange membrane (HT-PEM) technology is instrumental in facilitating sustainable energy recovery. In this study, we pioneered the design of long alkyl quaternized ionic liquid (GIL) to introduce it into hydroxypolybenzimidazole (OHPBI), to enhance the proton conductivity of OHPBI. Concurrently, we incorporated self-contained microporous polymers (PIM-1) into the system and utilized the differing affinities of GIL and PIM-1 toward the phosphoric acid (PA) phase to prepare microphase-separated polybenzimidazole (OHPBI-GPIL-PIM X ) membranes. Notably, the PA retention rate of the OHPBI-GPIL-PIM X membrane at 160 °C/0% relative humidity is 89.1%. Additionally, the OHPBI-GPIL-PIM X membrane achieves a peak power density of 1.1 W cm −2 at 180 °C, with a voltage decay rate of 0.05 mV h −1 after prolonged operation. The OHPBI-GPIL-PIM X membrane demonstrates both high power output and long-term stability, highlighting its potential for emerging electrochemical applications. Download: Download high-res image (120KB) Download: Download full-size image
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Journal of Energy Storage
·
2026
·
IF 10.7
Shiyao Chen,Zeling Long,Lina Jia,Yingbin Wang,Guoying Zhao
Long-term phase change thermal storage is critical for large-scale renewable energy application, as it uses phase change materials' (PCMs) high latent heat to resolve spatiotemporal energy supply-demand imbalances. However, the practical application of erythritol (ERY) and similar PCMs is hindered by their crystallization kinetics, which cause prolonged supercooling, spontaneous crystallization, and an inability to release stored heat on demand. Herein, we propose a novel strategy, constructing a deep eutectic system via strong hydrogen bonds between hydroxy-functionalized ionic liquids (OH-ILs) and ERY to tailor its crystallization kinetics and phase behavior. Among composites, 1-(2-hydroxyethyl)-3-hydroxy pyridinium bromide (IL2)/ERY70 performs best, with melting enthalpy of 256.4 J/g and crystallization enthalpy of −159.8 J/g. Differential scanning calorimetry, in situ confocal micro-Raman spectroscopy demonstrate that the strong hydrogen-bonding interactions formed within the IL2/ERY system effectively reduce its melting point, and restructures its phase-change behavior and crystallization kinetics. The observed shift from cooling-induced to heating-induced cold crystallization, coupled with a transition from growth-dominated to nucleation-dominated kinetics, results in a more controllable, albeit slower, crystallization process. These synergistic modifications collectively enhance the supercooling stability of the material and significantly improve the controllability of energy release. In addition, IL2/ERY70 demonstrates exceptional cyclic stability, with its enthalpy varying only 5.1% over 50 cycles. Infrared analysis confirms its structural integrity, making it a promising high-performance material for long term thermal energy storage. This study provides an effective eutectic engineering strategy for advanced PCMs with high stability, controllable heat release, and long lifespan.
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Sustainable Chemistry and Pharmacy
·
2026
·
IF 6.7
Mengtong Wang,Jiaxin Li,Qiwei Sun,Juan Zhang
Salicylic acid is widely applied in medicine, agriculture, industry, and personal care. In this study, a polymeric ionic liquid catalyst, P[Chol][PeA], was developed for the synthesis of salicylic acid via the Kolbe-Schmitt reaction between CO 2 and phenol. P[Chol][PeA] was characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmett–Teller (BET) surface area analysis, proton nuclear magnetic resonance spectroscopy ( 1 H NMR), X-ray photoelectron spectroscopy (XPS),Thermogravimetric analysis (TGA) and Gel permeation chromatography analysis (GPC). The optimal reaction parameters were determined as follows: the heterogeneous catalyst designation P[Chol][PeA], CO 2 pressure 1.00 MPa, reaction temperature 140 °C, catalyst loading 5.00 wt%, and reaction time 2.00 h. Under these optimal conditions, the yield and selectivity of salicylic acid were 51.10% and 95.01%, respectively. The heterogeneous catalyst retained its activity without significant loss after ten recycling runs. Furthermore, the response surface fitting results are consistent with the experimental results.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·Vol. 65
·期 34
·18267-18276
·
IF 3.9
Liu Siling,Qi Kaiyuan,Peng Chong,Tan Shuai,Wang Caihong,Wu Yong
Piezo-electrolytes have emerged as
a kind of multifunctional material
for self-charging power cells but well coupling of piezoelectric and
conductive components remains a concern. In this work, protic acidic
ionic liquid 1-methylimidazolium hydrogen sulfate, which is miscible
with piezoelectric barium titanate (BaTiO 3 ), is fabricated
into a self-standing ionogel piezo-electrolyte by in situ polymerization
of acrylate monomers for self-powered supercapacitors. Attachment
of the acidic anions on the surface of the basic BaTiO 3 via acid–base interactions allows the piezoelectric particles
to be homogeneously stabilized in the ionogel through electrostatic
repulsion. The ionogel piezo-electrolyte exhibits an ionic conductivity
of 2.2 mS cm –1 with a proton transference number
of 0.234 and an open circuit voltage of 6.75 V at a compressive force
of 20 N. A piezo-supercapacitor is constructed by sandwiching the
ionogel between polyaniline-coated carbon cloth, delivering a specific
capacitance of 1795 mF cm –2 . When a static compressive
force is applied, the piezo-supercapacitor is self-charged up to 1259
mV with a maximum rate of 581 mV s –1 . Meanwhile,
the piezo-supercapacitor shows a voltage decay of only 5% after 9000
s in the absence of external forces. A single piezo-supercapacitor
with 1 cm 2 active area successfully powers an electronic
watch by finger pressing. The strategy of coupling proton conduction
with piezoelectric response in the protic ionogel efficiently enhances
energy conversion in piezo-supercapacitors.
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