Advanced Materials Technologies
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2025
·
IF 6.2
Xin Luo,Zhaoyu Lin,Baohao Yang,Taoying Rao,Jianhui Zeng,Yucheng Jiang,Linlin Ren,Rong Sun,Yimin Yao
The surge in AI technologies and the new energy sector has intensified the demand for efficient thermal management, now a key technological bottleneck. Silicone-based thermal interface materials (TIMs) dominate but suffer from oil bleeding, weak interfacial adhesion, and thermal aging. Alternative polymer systems are needed to enable advanced cooling solutions. In this study, poly(1-butyl-3-vinylimidazolium) bis(trifluoromethylsulfonyl)imide (P[Im 4 ,V]NTf 2 ), is evaluated for its potential in TIM applications. P[Im 4 ,V]NTf 2 exhibits remarkable mechanical and thermal properties, including an elongation exceeding 2400%, robust interfacial adhesion to copper (7.7 MPa) and silicon (8.3 MPa), and high thermal stability with negligible mass loss below 150 °C. It also features rapid self-healing and recyclability, alongside excellent compatibility with fillers. Aluminum (Al)-containing composites are prepared via straightforward solution blending of Al powders with P[Im 4 ,V]NTf 2 , yielding uniform Al dispersion and achieving thermal conductivity exceeding 3 W m −1 K −1 . The intrinsic adhesion of P[Im 4 ,V]NTf 2 enables desired interfacial adhesion (≈0.6 MPa) to copper, steel, and glass, far exceeding that of silicone-based TIMs (≈0.05 MPa). The composite also shows stable thermal performance in device-level tests, confirming the applicability of structurally diverse poly (ionic liquid)s with commercial fillers for TIM applications.
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高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2025
·
IF 8.9
Jianhui Zeng,Taoying Rao,Ting Liang,Yimin Yao,Chaoyang Wang,Jian-Bin Xu,Liejun Li,Rong Sun
Amid the global surge in generative AI and the resulting compute revolution, thermal management has emerged to be a pivotal determinant of its success. Innovation in thermal interface materials (TIMs) now represents a strategic frontier in shaping the trajectory of the Fourth Industrial Revolution. Conventional silicone-based TIMs face a performance dilemma comprising thermal cycling-induced interfacial delamination, aging-related increases in interfacial thermal resistance. Building on previous work that introduced poly(ionic liquid)s (PILs) as a novel alternative to silicones, this study further optimizes the molecular structure of PILs. Incorporation of ethoxy groups significantly enhances the mechanical compliance of PIL while maintaining high adhesion strength. Robust hydrogen bonding between ethoxy groups in PIL and liquid metal enables a high loading of 82 vol% without leakage, achieving a thermal conductivity of nearly 5 W m −1 K −1 . Meanwhile, strong interfacial adhesion yields a interface contact thermal resistance of 0.74 ± 0.12 × 10 -6 m 2 ·K/W between the PIL/LM composite and Si, lower than that of silicone-based TIMs. The noncovalent self-healing of the PIL matrix effectively prevents crack formation in TIMs during aging. This work advances the application of PILs in TIMs and provides strategies for performance optimization, paving the way for their practical deployment as viable matrix alternatives.
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CHEMISTRY & BIODIVERSITY
·
2025
·
IF 2.5
Sheng-qi Jiang,Yu-yang Chai,Shu fang Ma,Junlong Wang,Wen-pan Shi,Peng peng He,Juan xia Pang,Yong gang Lin
In this study, we optimal the ultrasound-assisted ionic liquid extraction (UAILE) process of polysaccharides from Crataegus songarica K. Koch fruits. The optimal conditions determined were: ultrasonic power of 400 W, temperature of 79 ℃, extraction time of 78 min, Ethylammonium dodecyl sulfate (EADS) concentration of 1.52 mg/mL, and liquid-solid ratio of 51:1 mL/g. Under these conditions, the polysaccharides yield was 34.37%, which was significantly higher than that obtained by the conventional ultrasound-assisted extraction (UAE) and hot water extraction (HWE) methods. After purification, we studied the chemical composition, physicochemical properties and structural characteristics of polysaccharides (CSP). The results showed that CSP is a heteropolysaccharide containing α-linkage glucopyranose, which is mainly composed of mannose, arabinose, galactose and glucose, with a molecular weight (Mw) of 27.82×104 Da. In addition, CSP demonstrated significant free radical scavenging ability, and was able to efficiently reduce the H2O2-induced HepG2 cellular malondialdehyde (MDA) content, while enhancing superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, showing its superior antioxidant activity. Based on these properties, CSP is expected to be used as a novel efficacy factor in the food and pharmaceutical industries.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Wenqi Song,Zhiqiang Li,Jiahui Qu,Zongcheng Miao,Yanfang Zhu,Siyu Wang,Peirui Li,Valentin Nica,Liwei Qian
Multifunctional food packaging remains challenging due to complex processes requiring multiple additives. This study presents a simplified fabrication of polyvinyl alcohol (PVA) composite films using a multifunctional nanofiller. An ionic liquid monomer (ILFe III ) bearing quaternary ammonium salt (QAS) cations for antibacterial activity and tetrachloroferrate(III) anions (FeCl₄ − ) for photothermal conversion was grafted onto cellulose nanocrystals (CNCs) to producing CNC@PILFe III nanofiller, which was incorporated into PVA by one-pot blending and casting. Owing to the rationally designed ionic liquid structure, incorporating QAS cations, hydrophobic phenyl/alkyl groups, and FeCl₄ − anions, this nanofiller endowed the PVA/CNC@PILFe III composite films with multimodal antibacterial activity, mechanical reinforcement, and enhanced water resistance. The optimized film exhibited mechanical strength (tensile strength 11.92 ± 0.21 MPa and elongation at break 202.1 ± 2.7 %), stiffness (66.40 ± 0.71 MPa), water resistance (water contact angle 98.8 ± 3.0°), and reduced oxygen and water vapor permeability, along with >99 % antibacterial efficacy against E. coli and S. aureus and > 90 % cytocompatibility. Preservation tests on cherry tomatoes showed significantly inhibited microbial growth, reduced weight loss, and sustained texture and acidity over 14 days, demonstrating effectively extended shelf life. This approach offers a promising strategy for sustainable, high-performance food packaging materials.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Yuhan Chen,Ying Wang,Yuan Liang,Ke Ma,Qiyuan Qian,Yao Zhang,Wenbin Jin,Hai Wan,Shuohan Huang,Yuwei Chen,Peng Wei,Yanping Wang,Yong He,Yumin Xia
Flexible electronic sensors have demonstrated significant application potential in fields such as artificial intelligence and healthcare, attracting considerable attention and research from the industry. Silk fibroin (SF) emerges as a promising candidate material for flexible electronics due to its biocompatibility, mechanical flexibility, and tunable nanostructure. However, its poor electrical conductivity limits practical applications. In this study, imidazole-based polyionic liquids (PIL) were used as an intermediate medium between silk fibroin (SF) and nanocarbon materials (NCs), successfully preparing conductive silk fibroin materials. Scanning electron microscopy (SEM) observations revealed that NCs were successfully and uniformly attached to the SF surface, and PIL effectively addressed the agglomeration issue of NCs, maintaining their original morphology while reducing particle size. The resulting NCs@SF materials exhibit high electrical conductivity (1.6 mS/mm), excellent mechanical durability (95 % conductivity retention after 1000 bending cycles), and multi-response capabilities to strain, pressure, temperature, and humidity. Furthermore, due to its biocompatibility advantages, this material can be developed into wearable sensors for detecting human respiratory rate, bending angle, and laryngeal vocalization status.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yicheng Zhou,Yang Liu,Chunyu Shen,Cuili Li,Bingquan Duan,Xinglong Wang,Ying Yang,Jianwei Tang,Yong Liu,Pengfei Liu,Bo Shen,Junxiang Ding,Baoming Wang
Nano‑magnesium hydroxide (MH), an environmentally friendly inorganic material, is widely used in flame retardancy, adsorption, and nanocomposites. However, precise control of its nanostructure and crystallization kinetics during synthesis remains a key challenge. This study aims to unveil the ionic liquid-mediated MH crystallization mechanism. MH was prepared via homogeneous precipitation using NaOH and MgSO₄·7H₂O as raw materials, with two 1-butyl-3-methylimidazolium-based ILs (ILA, ILB) as regulators. Via a synergistic approach of crystallization kinetics analysis and density functional theory (DFT) simulation, this study elucidated how ionic liquids (ILs) regulate MH nucleation and growth. Real-time conductivity monitoring tracked Mg 2+ dynamics, and the effects of temperature, reactant concentration, and IL type on MH crystallization kinetics were studied. DFT calculations optimized the precursor complexes (MgSO₄-ILA/ILB), while electrostatic potential (ESP) and atom-in-molecule (AIM) analyses resolved the coordination between anions and Mg 2+ as well as the regulatory mechanism of nucleophilic attack. Experiments show that under appropriate temperatures, ILs inhibit nucleation and induce smaller particles, with ILB more effective in growth control. ESP and frontier orbital analyses reveal IL cations affect growth kinetics and particle size through hydrogen bond-mediated nucleophilic attack direction and steric effects. This work reveals IL anions control MH crystallization via synergistic electrostatic, coordination, and steric effects, offering a framework for IL-based MH nanostructure customization.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Hongyu Xu,Jingjing Zhang,Xue Lu,Shijing Feng,Zigang Xu
In this study, a novel composite functional hydrogel was developed, integrating outstanding mechanical properties, remarkable catalytic activity, and highly sensitive sensing performance. Here, the dispersion behavior of Ti 3 C 2 T x (MXene) via ionic liquids was examined, focusing on the interplay between surface functional groups of MXene and IL. The study aims to elucidate the mechanisms governing dispersion stability. Subsequently, a novel Polyacrylamide(PAM)/Polyacrylic acid(PAA)/Chitosan/ionic liquid(IL)-MXene hydrogel was designed. PAM/PAA offers a 3D framework, multiple bonds such as hydrogen bonds and electrostatic interactions are formed with PAM/PAA and chitosan by IL-MXene, and the mechanical strength of the hydrogel is further enhanced. Meanwhile, the hydrogel is endowed with good electrical conductivity and sensing capabilities by MXene, which serves as a conductive filler. A strain of 2980 %, a tensile strength of 1050 kPa are displayed by the hydrogel. Simultaneously, it exhibits gauge factor (GF) of 13.6 and a rapid response time. Under eco-conscious waste management, the functional regeneration of waste hydrogels as adsorbents significantly enhances the sustainability of environmental remediation. pAAm/PAA/Chitosan/IL-MXene serves as a template for the synthesis of Au NPs, facilitating the reduction of 4-NP with a catalytic rate constant of 0.113 min -1 . This composite hydrogel exhibits remarkable mechanical properties and multiple functions. Under an eco-conscious waste management framework, the functional regeneration of waste hydrogels into high-performance adsorbents represents a significant advancement in sustainable environmental remediation. For instance, the discarded pAAm/PAA/Chitosan/IL-MXene hydrogel system serves as an effective template for the in situ synthesis of gold nanoparticles (Au NPs), demonstrating exceptional catalytic activity in the reduction of 4-nitrophenol (4-NP) with a rate constant of 0.113 min -1 . Beyond its catalytic efficiency, this composite hydrogel exhibits outstanding mechanical robustness and multifunctionality. In particular, the chitosan within the hydrogel matrix plays a significant role in enhancing antibacterial properties. Moreover, even after undergoing several catalytic cycles, it still maintains >90 % of its original state, indicating excellent cyclic stability and recyclability. Due to these outstanding characteristics, multifunctional hydrogel holds great promise for applications in the fields of flexible sensors and catalysis.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jiahui Zhang,Chao Pan,Shiying Di,Qizhong Huang,Jisheng Li,Zhiyuan Wang,Ye Yang,Ningning Wang,Kuo Chang,Lingcong Kong,Wangchen Fan,Zixian Zhang,Siqi Jiang,Yufeng Hu,Zhichang Liu
Wood vinegar refining and one-step synthesis of methyl isopropyl ketone produce two byproducts, methanol (MT) and methyl ethyl ketone (MEK), which are difficult to separate due to the formation of lowest azeotropes. Therefore, 169 ionic liquids (ILs) were screened using COSMO-RS, and 1-ethyl-3-methylimidazolium diethylphosphate ([EMIM][DEP]) was finally determined as the best entrainer for the separation of MT and MEK by analysis of the dissolution and separation properties. Mechanism of [EMIM][DEP] separation of MT/MEK revealed using quantum chemical calculations. The results showed that the binding capacity between MEK and MT was weaker than that between [EMIM][DEP] and MT and that [EMIM][DEP] exerted a positive effect on breaking the azeotrope of MT and MEK. To this end, a basic separation sequence for an extractive distillation process (EDP) was constructed using Aspen Plus V11, and based on this process enhancement, three intensified processes, heat-integrated extractive distillation process (HI-EDP), heat pump-assisted extractive distillation process I (HP-EDPI), and heat pump-assisted extractive distillation process II (HP-EDPII) were developed, and their performance was evaluated. The results show that costs, energy consumption, and gas emissions of the HP-EDPII were reduced by 11.16, 60.02, and 47.13%, respectively, compared with that of the EDP. The HP-EDPII showed great potential for energy saving and environmental protection.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Huajie Qiu,Qinghai Long,Yutao Bai,Xuanang Fu,Chao Liu,Guohua Jing,Zuoming Zhou,Bihong Lv
In order to address the drawbacks of existing Alkanolamine including high regeneration temperatures and excessive energy consumption, a novel dual fuctionalized ionic liquid (DFILS) biphasic solvent was proposed for CO 2 capture, for which separated into liquid-liquid two phase after CO 2 absorption. The DFILs composed of N,N-diethylpropan-1,3-diamine (DEAPA) as cationic and 1,2,4-triazole (Tz), featured higher CO 2 loading and low temperature desorption capability; while poly(ethylene glycol) dimethyl ether (NHD) and water were used as phase splitter and dissolvant respectively. The saturated loading of [DEAPAH][Tz]-NHD-H 2 O (C ILs = 0.5 mol L −1 , V NHD :V H2O = 9:1) was 0.92 mol CO 2 mol −1 ILs at 40 °C, and about 97% of CO 2 (0.89 mol mol −1 ) enriched into the lower phase while occupied only 5% of the total volume. This novel solvent kept 86.83% and 80.78% of its initial loading after 1st and 5th regeneration cycle at 98 °C. Experimental and theoretical analyses reveal that the fresh solution maintains homogeneity through balanced polarities and strong IL-solvent interactions. CO 2 absorption generates carbamate and bicarbonate, for which an increased polarity, enhanced Van der Waals interactions, and repulsive forces between the products and NHD, leading to liquid-liquid phase separation. The [DEAPAH][Tz] structure (tertiary amine sterics and heterocyclic anion proton transfer) destabilizes products, while lean-phase NHD addition weakens product-water hydrogen bonds and facilitates proton transfer, enabling efficient low-temperature regeneration. It was estimated that the regeneration heaty duty of [DEAPAH][Tz]-NHD-H 2 O was 1.51 GJ ton −1 CO 2 , which was 60% lower than that of 30 wt% MEA (3.77 GJ ton −1 CO 2 ), further confirming great energy-saving potential for CO 2 capture.
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Polymers
·
2020
·Vol. 12
·期 1
·108
·
IF 3.426
Rong Huang,Xiuyan Guo,Shiyue Ma,Jixing Xie,Jianzhong Xu,Jing Ma
Metal-organic frameworks (MOFs) have shown great potential in flame retardant applications; however, strategies for fully exploiting the advantages of MOFs in order to further enhance the flame retardant performance are still in high demand. Herein, a novel MOF composite was designed through the generated cooperative role of MOF (NH2-MIL-101(Al)) and a phosphorus-nitrogen-containing ionic liquid ([DPP-NC3bim][PMO]). The ionic liquid (IL) was composed of imidazole cation modified with diphenylphosphinic group (DPP) and phosphomolybdic acid (PMoA) anions, which can trap the degrading polymer radicals and reduce the smoke emission. The MOF acts as a porous host and can avoid the agglomeration of ionic liquid. Meanwhile, the -NH2groups of NH2-MIL-101(Al) can increase the compatibility with epoxy resin (EP). The framework is expected to act as an efficient insulating barrier to suppress the flame spread. It was demonstrated that the MOF composite (IL@NH2-MIL-101(Al)) is able to effectively improve the fire safety of EP at low additions (3 wt. %). The LOI value of EP/IL@NH2-MIL-101(Al) increased to 29.8%. The cone calorimeter results showed a decreased heat release rate (51.2%), smoke production rate (37.8%), and CO release rate (44.8%) of EP/IL@NH2-MIL-101(Al) with respect to those of neat EP. This strategy can be extended to design other advanced materials for flame retardant.Keywords:MOF;ionic liquid;epoxy resin;flame retardant
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JOURNAL OF MOLECULAR LIQUIDS
·
2022
·
IF 6.633
Shujun Huang,Xinyan Chen,Yu Lei,Wanting Zhao,Jipeng Yan,Jian Sun
Laccase is a very promising natural enzyme in the application of biochemical industry, but its application is severely limited by its high cost and poor stability. To overcome the inherent defects of natural laccase, here, we prepared a new type of small-size mimicking nanozymes based on self-assembly of bovine serum albumin (BSA) and copper sulfate (CuSO 4 ) with help of ionic liquid (IL). The effects of different ILs on the catalytic activity of the product (BSA-Cu nanozymes) were investigated, and it was found that BSA-Cu nanozymes with stable structures could be obtained in tetrabutylammonium hydroxide (TBAOH). Compared with laccase, the V max /K m of BSA-Cu nanozymes prepared by TBAOH was higher (0.081) than that of laccase (0.029), and the stability of BSA-Cu nanozymes were significantly enhanced in terms of pH, temperature, and ionic strength. The BSA-Cu nanozymes were utilized for detection and degradation of a series of phenolic substances, among which catechol was the most effective. In the detection of epinephrine, BSA-Cu nanozymes achieved a lower detection limit (0.38 µg/mL) and were more sensitive than laccase (3.53 µg/mL). The application of ILs can improve the mimicking laccase nanozymes performance and has great potential for further industrial application.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Hui-Juan Guo,Xiao-Jiang Chen,Rui Shu,Xiao-Bin Zhong,Li-Xin Zhang,Yue-Xian Song
Zn anodes suffer from poor reversibility and stability owing to nonuniform dendrite growth and self-corrosion. Here, 1-ethyl-3-methylimidazolium acetate (EMImAc) is introduced to reconstruct interfacial electrical double layer with simultaneously manipulating the solvation environment and the adsorption situation on Zn anode. The acetate anions with high nucleophilicity can effectively alter the solvation shell around Zn 2+ ions and immobilize the H 2 O molecules, thus weakening water activity and alleviating water-related parasitic reactions. Concomitantly, both the imidazolium cation and acetate anion are inclined to gather on Zn anode surface for constructing an electrostatic shielding layer, and meanwhile the chemisorbed acetate anions also contribute to accelerate the Zn(H 2 O) 6 2+ desolvation process. Such a synergistic effect enables uniform electric field distribution and facilitates Zn ion flux, which mitigates the random diffusion of Zn 2+ and finally promotes the dendrite-free deposition. As a result, the Zn/Zn symmetric cells with EMImAc-integrated aqueous electrolyte realize an excellent cycling lifespan of 7000 h (0.5 mA cm −2 /0.25 mAh cm −2 ) and high Zn utilization of 61.3 % (15 mA cm −2 /20 mAh cm −2 ). Furthermore, the effective of EMImAc additive is demonstrated in Zn/V 2 O 5 cells. This work offers insights into the ionic liquid-integrated aqueous electrolytes to enhance the interface stability of Zn anode for rechargeable zinc batteries.
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危险品化学品经营许可证（带存储）