JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Aiting Liu,Zixin Lv,Hao Wang,Xiaowei Zhou,Qinghai Chen,Shuanyan Kang,Quanyuan Zhang,Nanwen Li
Lithium ion-solvating membranes (ISMs) enable Li + transport in lithium metal batteries (LMBs) by absorbing electrolytes to form a stable polymer/electrolyte/lithium salt ternary coordination system. Herein, we report flame-retardant aromatic polyamide ISMs incorporating 2-(3-aminophenyl)-5-aminobenzimidazole (PABZ) moieties, fabricated by blending with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and through subsequent electrolyte activation to form a quasi-solid system. The imidazole units synergistically mediate Li + solvation via cooperative coordination with LiTFSI while constructing hydrogen-bond networks, as confirmed by NMR and Raman spectroscopy. This dual mechanism concurrently enhances LiTFSI dissociation efficiency and mechanical robustness while stabilizing electrode-electrolyte interfaces. The optimized PABZ-20-ISM shows excellent thermal stability up to 300 °C, a tensile strength of 11.8 MPa and an elongation at break of 94.5%. The resulting membrane exhibits exceptional room-temperature ionic conductivity (2.46 × 10 -3 S cm -1 ), a high Li + transference number (0.8), and an electrochemical stability window that extends to 5.18 V. Its inherent flame-retardant properties and dendrite-suppressing capability enable the Li||PABZ-20-ISM||Li symmetric cell to cycle stably for over 1000 hours at 0.1 mA cm -2 . Meanwhile, the LFP||PABZ-20-ISM||Li half-cell delivers 160 mAh g -1 at 0.5C, retains 88.3% of its capacity over 500 cycles, and fully recovers capacity when reverted to 0.1C. By integrating ionic transport efficiency, interfacial stability, and thermal safety, this molecularly engineered electrolyte design provides a transformative solution for high-performance lithium metal batteries.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 8
·1-10
·
IF 5.3
Liu Yadi,Li Shu,Guo Xinyuan,Wang Tong,Yang Dawei,Zhan Jinhua,Chen Jing
A solid-phase microextraction-SERS (SPME-SERS) analysis system was enhanced by the synergistic integration of azo reaction and electroextraction (Azo/EEx/SPME-SERS) to directly determine aromatic amines in serum and urine. Azo reactions selectively converted aromatic amines (e.g., aniline) into positively charged derivatives, which were selectively absorbed onto a rough silver SERS substrate via charge-selective electroextraction (- 0.2 V), excluding anionic interferents. Electroextraction-accelerated mass transfer and real-time SERS detection enabled rapid preconcentration and spectral acquisition under 3 min. The azo reaction increased the Raman scattering cross-section of aniline, and electroextraction reduced the distance of azo aniline to the SERS hot spots. This enabled low detection limits (aniline, 0.005 µg·mL −1 ). The Azo/EEx/SPME-SERS method achieved dual-dimensional interference exclusion through chemical derivatization (azo reaction) and physical charge-selective electroextraction, granting aromatic amines competitive adsorption advantage over serum metabolites at SERS hotspots. This synergy allows for the direct detemination of aniline in urine/serum with only 5–10 fold dilutions. It avoids the need for tedious pretreatments, while maintaining recoveries of 92–107%, accuracy of 97.33% (urine) and 94.89% (serum), and method detection limits of 0.05 µg·mL −1 (urine) and 0.5 µg·mL −1 (serum). Graphical
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
·
IF 6.6
Anyi Sun,Chen Yu,Zhuoran Xing,Yujie Hao,Hongjuan Li,Yan Ren
A novel strategy for analyzing free fatty acids (FFAs) in edible oils was developed using isotope-coded derivatization reagents—4-(dimethylamino)benzoylhydrazine (DABA) and d 6 -4-(dimethylamino) benzoylhydrazine ( d 6 -DABA)—synthesized via a two-step process. These reagents selectively derivatized FFAs at 35°C in 30 min, considerably enhancing mass spectrometry sensitivity. Ultra-performance liquid chromatography–high-resolution mass spectrometry (UPLC–HRMS) enabled multidimensional identification via isotope ratio analysis, retention time prediction, isotope peak matching, and carbon count–based retention behavior, excluding 47.5% of initial proposals and identifying 42 FFAs. A relative quantification method using d 6 -DABA-derivatized pentadecanoic acid as the internal standard showed good linearity ( R = 0.9914–0.9993), precision, repeatability, and stability (relative standard deviation (RSD) ≤ 13.0%). The primary FFAs in five edible oils included palmitic, stearic, linoleic, arachidonic, and linolenic acids. Specifically, linoleic acid was predominant in rapeseed oil (117525.5 ng/mL) and peanut oil (525880.0 ng/mL), stearic acid was notable in soy oil (21255.2 ng/mL) and corn oil (29349.7 ng/mL), and palmitic acid was predominant in olive oil (97834.5 ng/mL). This method offers a sensitive analytical platform with excellent tolerance to substrate interference, facilitating the study of the composition and content of FFAs in edible oils.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Yingtao Li,Tao Zhang,Dinghan Wang,Jingxing Gui,Feiyue Zhou,Lixuan Yang,Dan Yu,Wei Wang
Fabric-based infrared stealth composite materials have both thermal insulation performance and low emissivity characteristics, and are suitable for fields such as infrared camouflage and thermal management. Therefore, this study innovatively designed a multi-layer structure fabric-based composite material that combines efficient infrared reflection and excellent heat insulation performance. Through the wet spinning and hot-pressing combined process, the functionalized MXene coating was combined with the SiO 2 aerogel microsphere (SiO 2 M)/gel fiber insulation layer, achieving a "surface low emissivity-internal high insulation" synergistic protection mechanism. A continuous and dense MXene low emissivity functional layer was constructed on the fabric surface. By adjusting the concentration of MXene, its emissivity in the 8–14 μm infrared wavelength range was reduced to 0.282, while maintaining excellent conductivity (surface resistance < 10 Ω/sq). The innovative design of the insulation system of SiO 2 M and gel fibers network was achieved. The aerogel microspheres effectively inhibit heat conduction through their nano-porous structure, while the gel fiber network hinders air convection. The combination of the two enhances the material's insulation performance (thermal conductivity = 0.04651 W/(m·K)). At a heating temperature of 70 °C, the thickness of the fabric is 1.263 mm, achieving a temperature difference effect of 11 °C. After adding SiO 2 M, the thermal insulation temperature difference increased by 5.8 °C. In sum, when heated to 70 °C, the radiation temperature only shows 43.4 °C, which means that the intensity of the infrared signal is significantly reduced. Therefore, this multi-layer structure fabric composite material provides some novel new ideas for related applications.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
Jie Wu,Xiaoyu Bai,Jianbo Yang,Siman Li,Hua Mei,Yan Xu
Phenol, as an important industrial raw material, the traditional three-step method for preparing phenol has drawbacks such as numerous by-products and difficulties in oxidation. In this regard, we use nitrogen-containing cations that can make conjugated π electrons more active to assemble with Keggin-type polyoxometalates with excellent redox properties, which can not only enable Keggin-type polyoxometalates to obtain the catalytic performance of activated benzene rings, but also increase their stability in organic solvents. Therefore, we synthesized three zero-dimensional compounds ((C 10 H 10 N 2 ) 2 [HPMo VI 9 V V 3 O 40 (FeH 2 O) 0.5 ].1.5H 2 O ( 1 ), (C 7 H 10 N 4 ) 2 [H 3 PMo VI 8 V V 4 O 40 ] ( 2 ), (C 9 H 8 N) 3 [PMo VI 8 Mo V 4 V IV 2 O 42 ] ( 3 )) through simple hydrothermal and solvothermal methods using different nitrogen-containing cations and molybdovanadate. Structural analysis indicates that these three compounds are structurally similar, each consisting of its own molybdovanadate anion and protonated organic counter cations. The experiment demonstrated that compound 3 had a yield of 11.2 % and a selectivity of 93 % for phenol at 60°C. To further explore the oxidation performance of the compound, we selected different sulfides for oxidation experiments and found that it could completely oxidize sulfur-containing substances (such as BT) at 90°C. This indicates that the idea of combining molybdovanadate and nitrogen-containing organic cations has a promising application prospect in the benzene hydroxylation and Sulfur oxidation.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2025
·
IF 3.2
Huishan Chen,Xiaoyi Sun,Ning Qing,Liuyan Tang
Hydrophobically modified ethoxylated urethane (HEUR), a typical polymer associative thickener, is extensively applied in aqueous coatings, textile printing, and resin coatings to regulate the rheological properties of the system. However, conventional branched HEURs face two critical limitations: (1) the risk of excessive cross-linking during the chain-expansion stage due to high monomer reactivity; (2) the phase-separation phenomenon in some branched HEUR aqueous solutions upon standing. To overcome these challenges, we designed and synthesized a polyhydroxy hyperbranched structure (PU-OH 3-6 ). This structure features two main advantages: a larger central backbone and a greater spacing between active groups (OH). The hyperbranched HEUR 3-6 synthesized using PU-OH 3-6 as a branched-type chain extender is more controllable and viable in the production process. Moreover, various testing methods were employed to assess the thickening performance, salt resistance, and water retention of HEUR in a pure-water system. The results indicated that the branched structures of HEUR 3-6 have better thickening properties compared with the previously reported HEUR with a linear structure (HEUR L ), and branched HEUR with using gamma-triol (HEUR GI ), pentaerythritol (HEUR P ), and xylitol (HEUR X ) to expand the chain. Among them, HEUR 5 demonstrated the best thickening effect in pure-water systems, while in salt-containing solutions, HEUR 6 with a six-branched degree showed more pronounced anti-electrolyte properties.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zhiyong Li,Xiangyan Ji,Xiaoge Li,Da Gao,Lei Sheng,Wei He,Jie Sun,Dingqiang Lu,Jingjing Meng,Kai Guo
The investigation of bio-based epoxy resin has become increasingly significant, particularly for functional resins. However, research on bio-based resins that exhibit comprehensive performance advantages has seldom proceeded. To overcome this dilemma, the liquid amine curing agent AEESN was synthesized from bio-based eugenol and cysteamine, and then furnished the polymerization with three epoxy monomers, viz. DGEBA, TGAP, and TGDDM, respectively. The AEESN-based epoxy resin polymer, specifically DGEBA/AEESN, demonstrated an impact strength of 53.6 ± 7.78 kJ m −2 by a 1060 % increase, after storage at −20 °C, wherein less impact occurred on tensile and bending strength. Among them, the temperature control microphase separation process is responsible for such an impact enhancement. In addition, DGEBA/AEESN is also highly resistant to acidic and basic aqueous solutions. In contrast, the TGDDM/AEESN thermoset demonstrated good resistance to both organic solvents and aqueous solutions. Moreover, among different substrates, it was revealed that wood allowed the strongest adhesion for TGDDM/AEESN, reaching 4.14–7.48 MPa. Delightedly, all thermosets showed superior shape memory ranging from 100 °C to 150 °C and behaved with good sustainability, processability, and design freedom. Besides, superior optical shielding against UV and blue light may promote the use of functional coatings or lenses. Overall, the aforementioned bio-based AEESN epoxy resin exhibits good performance and outstanding functionality for applications.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Qian Zhang,Yanni Zhang,Jinyuan Zhao,Bofei Luo,Tengteng Liu,Chen Xu,Junpeng Li,Yaping Du
The garnet-type Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) solid electrolyte is promising in the fabrication of the solid-state lithium metal battery (LMB) for its high intrinsic lithium ionic conductivity and electrochemical stability. However, the high interfacial resistance induced by the surface contamination layer and poor interfacial contact severely hinders its practical applications. Wet ball-milling in the presence of polyacrylonitrile (PAN) was found to be extremely effective in preparation for highly conductive LLZTO. The work employs four typical polymers (PMMA, PEO, PVP, and PS) in wet ball-milling jars to prepare in-situ polymer-coated LLZTO ceramic particles. Effective lithium-ion migration channels between LLZTO particles without sintering can be constructed successfully, significantly enhancing electrochemical performances. The lithium symmetric cell exhibits long-term cycling stability of over 2000 h at 65 °C and 0.1 mA cm −2 . The solid-state LMB assembled using the LiFePO 4 cathode and the solid electrolyte made from in-situ polymer-coated LLZTO particles demonstrates a discharge capacity of 120 mAh g −1 with a capacity retention of more than 95 % after 200 charge/discharge cycles at 65 °C and 0.5C. The key mechanism underlying the much-improved performance could be the in-situ formation of polymeric protective coatings on the LLZTO fresh surfaces during the wet ball-milling process. The polymer coating prevents the LLZTO from contaminating and fills the gaps between LLZTO particles, thus facilitating lithium-ion migration.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Xusheng Chen,Ye Yang,Lina Si,Hongjuan Yan,Zhaoliang Dou,Fengbin Liu,Huanxiong Xia
To address the inadequate bonding strength between machined carbon fiber reinforced polymer (CFRP) and metal, this study investigates a novel precoating treatment utilizing organic nanoparticles. Leveraging the synergistic effect between the silane coupling agent (3-aminopropyl) triethoxysilane (APS) and polydopamine-chelated iron nanoparticles (PDA-Fe), a dense protective layer forms on the damaged CFRP surface. Single lap shear (SLS) tests demonstrated a significant 93 % increase in shear strength for joints with APS-(PDA-Fe) treated CFRP. Comparative studies with inorganic particles—multi-walled carbon nanotubes (MWCNTs), zinc oxide (ZnO), and silica (SiO 2 )—revealed that APS-(PDA-Fe) yielded the highest bonding strength enhancement for milled CFRP. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), surface wettability analysis, and microscopic morphology characterization elucidated the underlying mechanism: the formation of a protective encapsulating layer that repairs and reinforces damaged fibers, combined with abundant polar functional groups (e.g., hydroxyl, amino, quinone) in APS and PDA-Fe, which substantially enhance resin adhesion to the CFRP surface.
✓ 已验证
产品关联
DOI
高影响因子
Light-Science & Applications
·
2025
·Vol. 14
·期 1
·1-13
·
IF 23.4
Zhang Qingkai,Yang Kaiyu,Luo Chengyu,Lin Zhihan,Chen Weiguo,Yu Yongsheng,Hu Hailong,Li Fushan
Perovskite quantum dots light-emitting diodes (PeLEDs) have been developed for next-generation high resolution display applications. However, the hindered charge injection and massive charge trapping due to the insulating and defective surface of quantum dots (QDs) usually lead to a slow rise in electroluminescence (EL) response, which makes it challenging to realize ultra-high refresh rate displays with nanosecond response. Herein, an ionic liquid 1-Butyl-3-methylimidazolium Trifluoromethanesulfonate ([BMIM]OTF) was used to enhance the crystallinity and reduce the surface area ratio of QDs, which effectively decreases defect state and injection barrier at the interface. Therefore, the rise time of EL response with steady-state is successfully reduced by over 75%. We further reduce the capacitance effect by decreasing the light-emitting unit area. Thus, ultra-high resolution (9072 pixel per inch) PeLEDs with light-emitting pixel size of 1.3 μm were realized, achieving a brightness exceeding 170,000 cd/m 2 and an external quantum efficiency up to 15.79%. Moreover, it achieves nanosecond ultrafast response time under steady-state, which is the fastest response time of PeLEDs reported so far. Our work represents the most advanced performance of ultra-high-resolution PeLEDs, and provides in-depth insights into the mechanism of improving their response speed, showing significant potential in high refresh rate active display application.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Hua Li,Yiwen Yan,Yajie Shi,Xinxin Zhang,Xinxin Wang,Xiaomeng Wang,Lixiang Zhou,Guanyu Zheng
Ferric oxides play a critical role in transforming organic contaminants within anaerobic aquaculture sediments; however, their effect on the removal of antibiotics and antibiotic resistance genes (ARGs) remains unexplored. This study revealed that the addition of Fe 3 O 4 significantly promoted microbial Fe(III) reduction, SMX degradation, and methanogenesis by enhancing metabolic activity and facilitating electron transfer. While nutrient supplementation similarly improved SMX removal, it notably increased ARG abundance, unlike Fe 3 O 4 , which effectively suppressed ARGs. Although the presence of the electron shuttle AQDS in Fe 3 O 4 -amended systems further stimulated dissimilatory iron reduction, no additional benefit to SMX degradation was observed. Inhibition of methanogenesis reduced SMX degradation by 48 %, whereas Fe 3 O 4 supplementation enriched the methane metabolic pathway, suggesting that SMX removal occurred through a conductive network involving Fe 3 O 4 and methanogens. Moreover, Fe 3 O 4 supplementation induced significant shifts in bacterial community composition, enhanced antioxidase activity, and reduced reactive oxygen species levels. These alterations were associated with the repression of genes related to horizontal gene transfer and a decrease in ARG hosts. Overall, these results indicate that Fe 3 O 4 serves as an effective conductor, enhancing antibiotic degradation and limiting ARG propagation in aquaculture sediments.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Kunzhang Xu,Yun Wang,Zhuoyuan Zhang,Xiufeng Li,Yuxiang Yi,Shizhou Lu,Bo Song
Increasing the vertical water supply height and effective evaporation area is crucial to designing high-performance 3D solar evaporators. To achieve the purpose, a teardrop-shaped 3D evaporator with multiple biomimetic water supply structures is developed. The teardrop-shaped configuration not only greatly increases the effective evaporation area but also significantly improves the environmental energy utilization efficiency. The cactus-inspired water supply channels at the bottom greatly increase the vertical water supply capacity, thereby providing a foundation for enlarging the effective evaporation area. Compared with the conical evaporator with the same height and projected area, the teardrop-shaped evaporator demonstrates 50% of reduction in water supply time and 40% of increase in effective evaporation area. Additionally, the top conical structure enables localized salt crystallization, thereby achieving stable and continuous long-term desalination and resource recovery without liquid discharge. The optimization of the water supply structure and hydrophilic coating is resulted in the impressive evaporation performance (3.73 kg m −2 h −1 ) and environmental energy efficiency (202.7%). The teardrop-shaped evaporator demonstrates excellent adaptability and durability in desalination and wastewater treatment, particularly in conditions involving high salinity and strong acids. Environmental and economic assessments reveal the good economic affordability and environmental friendliness of the teardrop-shaped evaporator.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）