SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
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IF 9.1
Zhiping Gu,Fen Liu,Wenxuan Bai,Jiang Yu
Recently, the oxidative removal of hydrogen sulfide (H 2 S) using chelated iron-based ionic liquids has garnered extensive research attention owing to high H 2 S conversion efficiency and no by-salts production. Nevertheless, for natural gas, biogas, H 2 S is typically accompanied by high concentrations of carbon dioxide (CO 2 ) where excess CO 2 molecules tend to occupy the binding sites of H 2 S, thereby limiting the desulfurization efficiency. Therefore, developing H 2 S/CO 2 selective absorption materials is of great significance. In this work, the COSMO-RS method was employed to systematically screen cation–anion pairs and evaluate 13 organic solvents for their H 2 S/CO 2 selectivity and solubility. The chelated iron-based ionic liquid (HDMIFeEDTA) was identified as the most promising candidate, and its composite with NMP at a 1:2 mass ratio was selected as the optimal absorbent. This composite exhibited excellent desulfurization performance under CO 2 -rich conditions. Interestingly, the presence of CO 2 significantly enhanced H 2 S removal in the composite. FT-IR, ESI-MS, and DFT calculation revealed that after [Fe(III)EDTA] − is reduced to [Fe(II)EDTA] 2− by H 2 S, the electrons of [Fe(II)EDTA] 2− transfer to CO 2 , resulting the charge of O (CO 2 ) more negative. This negative site provides an additional binding site for H 2 S, thereby promoting its uptake through hydrogen-bond interactions. These results not only clarify the promoting role of CO 2 in the desulfurization process but also provide a new strategy for developing high-efficiency chelated iron-based ionic liquid absorbents for fuel gas purification
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DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2026
·
IF 8.1
Wei-Bin Bai,Ye Wang,Tian-Long Ma,Xin-Miao Li,Xiang-Kai Zhuang,Feng Chen,Yuan-Fang Ai,Hui-Hai Wan,Rong-Kun Jian
Developing epoxy resins (EP) simultaneously with high fire safety, mechanical strength and corrosion resistance using ammonium polyphosphate (APP) is imperative yet remains challenging, due to its limited flame-retardant efficiency, poor interfacial compatibility with the epoxy matrix, and lack of anti-corrosion ability. Although various sophisticated modifications of APP have been attempted to address this issue, the results remain unsatisfactory, and these modifications inevitably rely on auxiliary agents and complex procedures. Herein, a versatile ionic liquid, [DEA]D-ATA, readily synthesized via the neutralization of phosphoryl amitrole (D-ATA) and diethanolamine (DEA), serves as a curing agent, corrosion inhibitor, and flame-retardant synergist, and is demonstrated to simultaneously enhance the interfacial adhesion of APP within epoxy matrix via an in-situ cation exchange. Notably, the resulting [DEA]D-ATA/APP/EP composites exhibit significantly improved flame retardancy, reduced smoke release and toxic gases production, enhanced mechanical strengths and corrosion resistance relative to APP/EP cured by DEA. Specifically, the optimized [DEA]D-ATA/APP/EP attains a limiting oxygen index (LOI) of 31.8% and a UL-94 V-0 rating, with a peak heat release rate (pHRR) of 335.2 kW/m 2 and total smoke production (TSP) of 11.7 m 2 , while retaining a tensile strength of 65.9 MPa, an impact strength of 14.2 kJ/m 2 , and an impedance modulus |Z| 0.01 Hz of 10 6 Ω·cm 2 after 30-day immersion in 3.5 wt% NaCl solution. These results collectively demonstrate that this strategy effectively alleviates the performance degradation typically associated with APP-based flame-retardant epoxy composites. Overall, this ionic liquid-mediated synergistic approach, integrating interfacial regulation, fire safety enhancement, and corrosion resistance improvement, offers a straightforward and effective route to multifunctional high-performance EP composites.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Zhenjie Zhao,Guoqiang Xiang,Yaming Sun,Lijun He,Xiuming Jiang
G-CDs polarity probe synthesized via ionic liquid modification. • Dual-mode platform: fluorescence and smartphone colorimetry. • Aerogel sensor enables on-site TPC detection in oils. The content of total polar materials (TPM) in edible oil is a critical indicator for evaluating oil quality. In this study, a novel dual-mode sensing platform integrating fluorescence spectrometry and smartphone-based colorimetric analysis was developed for the rapid and on-site detection of TPM. The platform is based on green-emitting carbon dots (G-CDs) synthesized via a one-step solvothermal method using 1-hexyl-3-methylimidazolium tetrachloroferrate ([HMIM]FeCl₄) and o -phenylenediamine (o-PDA) as precursors. The G-CDs exhibit strong polarity-responsive fluorescence quenching upon exposure to TPM, enabling sensitive fluorescence detection with limits of detection (LODs) of 0.29%, 0.64%, and 0.16% for soybean, peanut, and rice oils, respectively, over a wide linear range of 1.81%–58.01%. Notably, by loading G-CDs onto a wood sponge aerogel, a portable fluorescent sensor was constructed. When coupled with a smartphone for colorimetric readout, this sensor achieved significantly improved LODs of 0.09%, 0.13%, and 0.11% for the three oils—surpassing both the fluorescence method in this work and many previously reported TPM sensing approaches—while maintaining a comparable broad linear range. Analysis of actual oil samples showed good agreement with the national standard method (GB 5009.202–2016). This work demonstrates that the integration of a G-CDs-based aerogel sensor with smartphone colorimetry offers a simple, sensitive, and field-deployable tool for TPM monitoring in edible oils. Download: Download high-res image (122KB) Download: Download full-size image
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高影响因子
CHINESE JOURNAL OF POLYMER SCIENCE
·
2026
·
IF 4.6
Jia Hui-Wen,Lv Xue,Ma Yan-Ming,Xu Wang,Yang Xiao-Ning
Conductive hydrogels with high mechanical strength, good adhesion, and high sensitivity are highly demanded for wearable electronics. A multifunctional hydrogel based on 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and acrylic acid (AA) was synthesized via free-radical polymerization. The system incorporates dynamic hydrogen bonds from guanine–cytosine (G–C) base pairs and homogeneously dispersed carbon nanotubes (CNTs) modified using a dual-ionic liquid strategy. Short-chain (C 4 ) and long-chain (C 12 ) imidazole-based ionic liquids act synergistically to exfoliate and stabilize CNTs, facilitating uniform dispersion and strong interfacial bonding. Owing to the continuous conductive pathways formed by the CNTs, the hydrogel exhibited enhanced electrical conductivity with a gauge factor of 5.61, together with excellent short-term cyclic stability and responsiveness for monitoring dynamic human motions. The combination of covalent cross-linking, reversible hydrogen bonding, and reinforced nanofillers endows the hydrogel with high stretchability, good adhesion (5.5 kPa), and superior fatigue resistance, showing great potential for use in flexible wearable bioelectronics.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Binyi Chen,Shoujing Wei,Yunyun Lei,Xinfan Zhao,Yubin Zhao,Huijie Tian,Ziqian Lu,Liubiao Zhong,Wei Gan,Yejun Qiu,Qunhui Yuan
Poly(vinylidene fluoride) (PVDF) based electrolytes are promising for lithium metal batteries, yet they suffer from low ionic conductivity, severe Li-metal side reactions, and poor dendrite suppression. This study presents a synergistic modification strategy integrating HfO 2 nanoparticles with ionic liquid to develop a high-performance composite electrolyte (PVHE). The incorporated HfO 2 nanoparticles adsorb residual dimethylformamide (DMF) solvent to suppress interfacial side reactions, while simultaneously facilitating the in-situ formation of a Hf-containing stable solid electrolyte interphase (SEI) that improves interfacial stability and inhibits lithium dendrite growth. The ionic liquid enhances the ionic conductivity by reducing the crystallinity of PVDF and regulating the solvation structure, synergistically achieving multiple performance breakthroughs with HfO 2 . The PVHE composite electrolyte exhibits an ionic conductivity of 5.75 × 10 −4 S cm −1 at 30 °C and a critical current density of 2.4 mA cm −2 . The Li|PVHE|Li cell cycles stably for over 1500 h at 0.1 mA cm −2 , and the Li|PVHE|NCM811 cell shows a capacity retention of 80.7% after 500 cycles at 1C. The multicomponent synergistic modification strategy offers a viable pathway toward the practical application of PVDF-based electrolytes and advances the understanding of the interactions among components in composite electrolyte systems.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yu Meng,Yibing Yang,Mingzi Sun,Shaozhuan Huang,Bolong Huang,Wenjun Zhang,Shuilin Wu
The development of sustainable and robust aqueous batteries is urgently needed to meet growing energy demands while addressing safety, cost, and environmental concerns. Yet their practical implementation is constrained by three fundamental challenges: the narrow electrochemical stability window (ESW) of water, its temperature sensitivity due to evaporation and freezing, and the electrode dissolution. These challenges are intrinsically governed by molecular-level interactions among water, electrolyte ions, and electrode materials. In this work, we overcome these challenges by employing the water-miscible ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BMIMOTF) to formulate water-in-ionic-liquid (WiIL) electrolytes that deliberately modulates molecular-level interactions among water, electrolyte ions, and organic electrode materials. Spectroscopic analyses reveal the formation of a unique water-lean solvation sheath, [BMIM + (H 2 O) 2 OTF − ], that effectively suppresses water decomposition and mitigates volatility and freezing, but also strengthens ion–electrode interactions to inhibit the perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) dissolution. Leveraging these interactions, we demonstrate a proof-of-concept metal-free aqueous full cell with PTCDI anode and polyaniline (PANI) cathode, which delivered 71% capacity retention after 15, 000 cycles, high-rate capability, and stable operation from −10 to 60 °C. This study established a new strategy for designing sustainable aqueous batteries through solvation and interfacial engineering with water-miscible ionic liquids.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
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IF 3.9
Haiyan Du,Lina Gao,Xiaoxiao Liu,Ruidong Zhang,Jiaying Wang,Zhubo Liu,Tingyu Yang
Abstract Composite gels have attracted attention in recent years in the fields of smart sensing and flexible wearable electronics. Easy damage, inability to self-heal, and freeze hardening at low temperatures are still the main issues that limit the development of gel sensors. In this work, multifunctional polyionic composite gel strain sensors were fabricated by combining poly(vinyl alcohol) (PVA) with hydrophobic imidazolium-type poly(ionic liquid) (P[VPI+][Tf2N–]). The mixed polymer solution realized spontaneous gelation at room temperature, and the gels exhibited self-healing, antifreezing, high stretchability, and conductivity, making them suitable for human joint motion monitoring and speech recognition at room or low temperatures. Moreover, through modification with silica nanoparticles and heptadecafluorodecyltrimethoxysilane, the nanocomposite coating of PVA/P[VPI+][Tf2N–] achieved superhydrophobicity (a static contact angle of 159.03°), displaying effective antifogging, antifouling, and self-cleaning properties. This work provides a universal approach to preparing multifunctional polymer composite materials based on poly(ionic liquids), which could be extended to other polymers.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2025
·
IF 4.1
Guiyang Li,Jinxia Wang,Hongwei Xie,Bo Tao,Zhenyu Li,Kai Yu,Qiushi Song,Zhiqiang Ning
Conquering the anodic passivation effects is essential to achieve the validity of the electrorefining process in room temperature ionic liquids. Herein, we investigated the effect mechanism of H 2 O on the removal of AlCl 3 (s) passivation layer on the surface of aluminum anode and the deposition of aluminum foil on the cathode in EmimCl-AlCl 3 ionic liquid. The results indicate that the introduced H 2 O derives an intermediate species AlCl 3 OH − , which is the key to de-passivation. The de-passivation effect of AlCl 3 OH − is divided into three stages with the anodic potential increase: under the low anodic potential of 0.8 V, it derives the black passivation film AlCl 2 OH(s), and consumes the AlCl 3 (s) passivation layer derived by Al 2 Cl 7 − → AlCl 4 − + AlCl 3 (s) at the anodic potential of 1.6 V ~ 2.2 V. Moreover, the derived AlCl 2 OH(s) is simultaneously also consumed up by the reaction AlCl 2 OH(s) + AlCl 4 − → Al 2 Cl 6 OH − . At the higher anodic potential of 2.2 V, it consumes up the derived AlCl 3 passivation layer, which ensures the continuous dissolution of the aluminum anode, resulting in the high anode dissolution current efficiency of about 100 %. On the other hand, the aluminum foil is electrodeposited by the electrochemical reduction of 4Al 2 Cl 7 − and Al 2 Cl 6 OH − species. However, the introduction of H 2 O reduces the current efficiency of the aluminum foil electrodeposition from 97 % to 90 % as the anodic potential increases from 1.6 V to 3.0 V. In addition, the lithium cobaltate half-cell with the electrodeposited aluminum foil collector shows a superior capacity retention rate of 98.33 % for 150 cycles at 0.5C current density.
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高影响因子
SOLID STATE IONICS
·
2026
·
IF 3.7
Meng Wei,Yihan Li,Zihan Geng,Xin Zhao,Meng Li,Tao Zhang,Guanghui Liu,Zhanjun Yu,Shuxia Wang,Song Xu
Oxide electrolyte Li 1.5 Al 0.5 Ge 1.5 (PO4) 3 (LAGP) has attracted much attention due to their potential and are considered ideal electrolytes for next-generation high-energy-density solid-state lithium metal batteries. However, their application is still limited by problems such as poor solid-solid interface contact, high interface resistance, lithium dendrite growth, and embrittlement during operation. To address these issues, our work propose a synergistic strategy to prepare a novel flexible quasi-solid-state ceramic-polymer electrolyte. This electrolyte is composed of [N1,4,4,4]TFSI ionic liquid (IL), polyvinylidene fluoride (PVDF), LiTFSI salt, and LAGP, which significantly improves the ionic conductivity and cycle stability of the ceramic-polymer electrolyte battery. The prepared LAGP/PVDF composite electrolyte exhibits an ionic conductivity as high as 1.16 × 10 −3 S cm −1 . LAGP nanoparticles have the dual function than not only can reduce the crystallinity of the polymer matrix; but also act as lithium-ion conductors to enhance lithium-ion transport capabilities. Furthermore, the Li/LiFeO 4 battery based on this ceramic-polymer electrolyte exhibits excellent interfacial compatibility and dendrite-free characteristics, with significantly enhanced cycle stability, capable of stable operation exceeding 300 cycles. This work demonstrates the feasibility of the PVDF/LAGP ceramic-polymer electrolyte and its industrial application prospects in solid-state lithium metal batteries.
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高影响因子
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
·
2023
·
IF 1.8
Yingxue Liu,Huijie Huangfu,Shuai Gao,Xugeng Guo,Li Wang
Herein, we prepare two types of MgAl-LDHs coatings single-doped by imidazolium ionic liquid 1-decyl-3-methylimidazolium bromide ([Demim]Br) or sodium dodecylbenzenesulphonate (SDBS) and double-doped by [Demim]Br and SDBS on AZ31B Mg alloy by using an in-situ hydrothermal treatment. Their surface morphology and corrosion resistance immersed in 3.5 wt-% NaCl solution are explored. Our results suggest that the double doping of [Demim]Br and SDBS will change the surface morphology of the coating and a uniform and dense film is observed in the double-doped MgAl-LDHs, which is denser than those of the two single-doped MgAl-LDHs coatings, thus providing a superior corrosion resistance. Such an improvement can be ascribed to the synergetic inhibition effect of [Demim]Br and SDBS against the corrosion of the Mg alloy substrate. More importantly, the charge transfer resistance of the sample coated with the double-doped MgAl-LDHs is still high after 3 d of immersion, benefiting from the excellent self-healing effect.
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高影响因子
Batteries-Basel
·
2023
·Vol. 9
·期 5
·
IF 4
Ningning Feng,Chaoqiang Wang,Jing Wang,Yang Lin,Gang Yang
Lithium–oxygen (Li-O2) batteries have captured worldwide attention owing to their highest theoretical specific energy density. However, this promising system still suffers from huge discharge/charge overpotentials and poor cycling stability, which are related to the leakage/volatilization of organic liquid electrolytes and the inefficiency of solid catalysts. A mixing ionic liquid-based gel polymer electrolyte (IL-GPE)-based Li-O2battery, consisting of a 20 mM 2,5-di-tert-butyl-1,4-benzoquinone (DBBQ) 40 mM N-methylphenothiazine (MPT)-containing IL-GPE and a single-walled carbon nanotube cathode, is designed for the first time here. This unique dual redox mediators-based GPE, which contains a polymer matrix immersed with mixed ionic liquid electrolyte, provides a proper ionic conductivity (0.48 mS cm−1) and effective protection for lithium anode. In addition, DBBQ, as the catalyst for an oxygen reduction reaction, can support the growth of discharge products through the solution–phase pathway. Simultaneously, MPT, as the catalyst for an oxygen evolution reaction, can decompose Li2O2at low charge overpotentials. Hence, the DBBQ-MPT-IL-GPE-based Li-O2battery can operate for 100 cycles with lower charge/discharge overpotentials. This investigation may offer a promising method to realize high-efficiency Li-O2/air batteries.
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高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 29
·2201488
·
IF 6.389
Ran Yin,Ke-Xiang Wang,Xiao-Nan Huo,Yan-Sheng Sun,Wei-Wei Sun,Yu-Kun Gao,Ting-Ting You,Peng-Gang Yin
Hole transport layer-free, carbon-based, all-inorganic CsPbI 3 perovskite solar cells (PSCs) have exhibited great potential in photovoltaic applications owing to their low cost and excellent thermal stability. However, the low power conversion efficiency (PCE) hampers its development, mainly due to the existence of defects inside the CsPbI 3 film or at TiO 2 electron transport layer/CsPbI 3 interface. Herein, these issues were addressed through a facile TiO 2 post-treatment strategy using 1-butyl-3-methylimidazole hexafluorophosphate (BMIMPF 6 ) ionic liquid. First, BMIMPF 6 can passivate TiO 2 /CsPbI 3 interface defects by forming strong bond between the electron-rich N atoms and uncoordinated ions. Second, BMIMPF 6 -modified TiO 2 shows reduced hydrophilicity, inducing decreased heterogeneous nucleation and is favorable for obtaining high-quality CsPbI 3 film. Thirdly, the non-volatile BMIMPF 6 can diffuse to the perovskite film surface during annealing, further passivating defects located at perovskite grain boundaries and surface. Based on this one-step ionic liquid interface-to-bulk modification, the modified device achieves a champion PCE of 15.09%, which is 14% higher than the control device (13.27%). In addition, the modified device also shows enhanced long-term stability, which remains 96% of initial PCE after 30 days storage in dry air. The work demonstrates the superiority of multifunctional ionic liquid applied to all-inorganic carbon-based PSCs, providing a guidance for its commercialization.
研究领域:
光伏技术
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材料科学
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钙钛矿太阳能电池
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能源材料
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表面改性
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高影响因子
危险品化学品经营许可证（带存储）