JOURNAL OF MATERIALS SCIENCE
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2024
·Vol. 59
·期 36
·16909-16917
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IF 3.5
Xie Jingru,Fu Zhifen,Cheng Qing,Chen Chen,She Yubin,Li Xiangyi
Low temperature co-fired ceramics (LTCC) technology is extensively utilized to meet the requirements of device integration and miniaturization. Low-fired Li 3 Mg 2 NbO 6 ceramics doped with x wt% Li 2 O–MgO–B 2 O 3 –CaF 2 –SiO 2 glass (LMBCS, x = 0.5, 1.0, 1.5, 2.0) were prepared by the solid-state reaction method for applications in microwave communication materials. All samples exhibited a single-phase Li 3 Mg 2 NbO 6 structure. The addition of LMBCS glass effectively reduced the sintering temperature of Li 3 Mg 2 NbO 6 ceramics from 1250 °C to 875 °C. And adding LMBCS glass improved the Q × f value of Li 3 Mg 2 NbO 6 ceramics. The Li 3 Mg 2 NbO 6 -1.0wt% LMBCS ceramics exhibited outstanding microwave dielectric properties: ε r = 16.8, Q × f = 89,495 GHz, τ f = − 27.4 ppm/°C at 875 °C, which indicates that this ceramic is potential candidate materials for LTCC.
研究领域:
材料科学
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电子陶瓷
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功能材料
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无机非金属材料
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微波通信材料
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高影响因子
Journal of Energy Chemistry
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2026
·
IF 15.6
Feng Chen,Zhuang Ye,Haojie Liang,Haixia Zhang,Junjie Guo
Axial coordination of heteroatoms to the metal sites in M-N-C catalysts exerts a direct modulation of the electronic distribution by forming a bond with the metal center, thereby optimizing its intrinsic oxygen reduction reaction (ORR). However, the steric hindrance introduced by axially coordinated heteroatoms limits reactant accessibility, potentially suppressing the overall catalytic activity. This study provides an HF wet etching strategy to synthesize a hollow porous ZIF-derived nitrogen-doped carbon-supported F-axially coordinated single-atom iron catalyst (F-Fe 1 @HNC), which simultaneously achieves F-axial coordination and high reactant accessibility. Consequently, the F-Fe 1 @HNC catalyst demonstrates outstanding ORR performance in both alkaline (0.919 V) and acidic (0.797 V) electrolytes. When employed as a cathode material in a zinc-air battery, F-Fe 1 @HNC achieves an open-circuit potential of 1.477 V and a power density of 256 mW cm −2 , significantly outperforming commercial Pt/C catalysts. Density functional theory confirmed that F-coordination altered the electronic distribution at Fe-N-C sites, optimizing the adsorption of oxygen-containing intermediates. This work highlights the importance of electron-withdrawing groups in creating the electron asymmetry at Fe-N-C sites, providing profound insights into designing highly efficient ORR catalysts. The F-axis coordinated Fe-N-C catalyst breaks the limitation imposed by spatial steric hindrance and significantly improves the oxygen reduction reaction (ORR) performance. Download: Download high-res image (252KB) Download: Download full-size image
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124533
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IF 7.5
Zhenzhen Fan,Jianheng Xin,Jinfeng Zhi,Yunpeng Wang,Wenjun Yan,Yujing Guo,Zhongping Li,Lifang Fan
Addressing water pollution and energy shortage simultaneously remains a key environmental challenge, yet conventional water treatment rarely removes pollutants while recovering energy. Phthalate esters (PAEs), a class of toxic and persistent emerging contaminants, urgently require advanced oxidation technologies. Herein, an efficient photoelectrocatalytic (PEC) system was developed based on S-scheme F-BiOF/TiO 2 nanocones (NCs) photoanode for deep degradation of the representative PAEs, dibutyl phthalate (DBP), with simultaneous hydrogen (H 2 ) evolution. BiOF was first loaded onto TiO₂ NCs to form a compact BiOF/TiO₂ interface, and subsequent electrochemical F activation regulated the interfacial electronic structure and strengthened the internal electric field, thereby promoting S-scheme heterojunction directional charge separation. This design retained the strong oxidation ability of BiOF valence-band holes and the reduction ability of TiO₂ conduction-band electrons. Density functional theory (DFT) and spectroscopic analyses confirmed that F activation significantly strengthened the internal electric field and facilitated directional charge separation, thereby boosting PEC performance. Under simulated sunlight irradiation at 0.8 V, the system achieved 96.5% DBP removal and 967.7 μmol/cm 2 H 2 production within 90 min. Notably, the H 2 yield dropped to 559.3 μmol/cm 2 without DBP, demonstrating that anodic pollutant oxidation can promote cathodic H 2 evolution. Fukui-function revealed that the degradation of DBP initiated with preferential attack on its ester group, while HeLa cell assays confirmed decreasing intermediate toxicity. The system also showed robust performance in real wastewater, highlighting its potential for integrated recalcitrant pollutant removal and clean energy recovery.
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LANGMUIR
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2026
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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 Energy Storage
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2026
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IF 10.7
Wenji Liang,Mengdi Han,Zhenhua Qin,Jinguang Cai,Yun He,Jianfen Li
Exploring highly active, cost-effective, and long-life non-precious metal-based catalysts for the oxygen reduction/evolution reaction (ORR/OER) is extremely important for renewable energy conversion devices. Herein, a facile approach is proposed to fabricate a FeNi nanoparticles decorated 3D N, S, F tri-doped porous carbon nanoflower/nanotubes electrocatalyst (FeNi@NSFC) by a self-assembly pyrolysis process. The ammonium sulfate not only acts as a N and S source but also facilitates the self-assembly of 2D ZnFeNi-ZIF nanosheets into 3D nanoflowers. Meanwhile, the potassium fluoride serves as a F source and regulates the crystal growth as well as pore structure. The 3D nanoflower/nanotube structure benefits the exposure of reactive species and mass/charge transport. The optimized FeNi@NSFC catalyst achieved outstanding bifunctional catalytic performance with an overpotential gap (0.655 V), which was lower than the Pt/C + RuO 2 catalyst (0.670 V). Theoretical findings also revealed that the introduction of N, S and F atoms could tailor the electronic structure of FeNi nanoparticles, thereby enhancing the catalytic activity for ORR. Therefore, the FeNi@NSFC-assembled Zinc-air batteries (ZABs) delivered a peak power density (156.2 mW cm −2 ), and long-term cycle durability (550 h), surpassing Pt/C + RuO 2 -assembled ZABs. This work demonstrates a promising avenue for developing MOF-derived catalysts with well-defined morphology and multi-atom doping.
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高影响因子
ELECTROCHIMICA ACTA
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2026
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IF 5.8
Xiangzhong Kong,Yong Yang,Siyuan Xu,Shi Li,Xi Chen,Lihua Wang,Zhongmin Wan
Phen strongly coordinates dissociative Fe ions to form active Fe-N X sites. • The strong coupling of Fe-F strengthens the poisoning resistance of the catalyst. • N,F co-doped network enhances ORR by lowering reaction energy barrier at Fe-N X sites. • Porous chain-bead framework prevents agglomeration, providing abundant sites and fast charge transfer. • AEMFCs with FeN X @Fe-F-CNF cathodes achieve a peak power density of 0.7 W cm −2 . Transition-metal-nitrogen-carbon (M-N-C) catalysts have garnered significant recognition as highly active non-precious metal catalysts for the oxygen reduction reaction (ORR) in anion exchange membrane fuel cells (AEMFCs), attributable to their low-cost, high atom-utilization and remarkable ORR performance. However, the primary drawback of conventional M-N-C catalysts lies in the suboptimal electronic structure of their metal centers (M-N 4 ), which results in excessively strong adsorption energy toward oxygen intermediates, thereby limiting their intrinsic activity and stability. Herein, the FeF 2 /Fe 3 N nanocrystalline decorated N, F co-doped chain-bead Fe-N-C fiber network (FeN X @Fe-F-CNF) has been fabricated by electrospinning strategy through utilizing 1,10-Phenanthroline monohydrochloride monohydrate (Phen) and NH 4 F as nitrogen/fluoride sources respectively. The six-membered heterocyclic in Phen allows for strong coordination with dissociative Fe ions, thus, promoting the formation of Fe-N X sites. Furthermore, co-doped N, F is able to tune the electronic structure of Fe active sites, whereas flexible chain-bead nanofibers guarantee considerable structural adaptation, thereby contributing to the enhancement of their catalytic activity and stability. The obtained FeN X @Fe-F-CNF exhibits enhanced ORR catalytic activity (with an E 1/2 of 0.863 V) and superior durability (with a current retention of 90.7 % after maintaining the ORR typical potential range for 100,000 seconds and a E 1/2 negative shift of 7 mV after 5000 continuous potential cycles). Furthermore, the assembled AEMFCs based on FeN X @Fe-F-CNF catalysts demonstrate excellent performance, with a peak power density of 0.7 W cm −2 , indicating its potential feasibility for commercial applications. Download: Download high-res image (293KB) Download: Download full-size image
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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Hao Xue,Tianyi Ma,Hong Zheng,Luoyilan Zhang,Ke Cheng
Biomass-derived fluorine and nitrogen co-doped carbon dots (F, N-CDs) were synthesized via a one-step hydrothermal method using Rhododendron simsii flowers as the precursor. The prepared F, N-CDs exhibited favorable optical properties, good water solubility, and a pronounced enhancement effect on the chemiluminescence (CL) of the Luminol-K 2 S 2 O 8 -NaOH system. The optical characteristics were systematically investigated by UV–Vis absorption spectroscopy, fluorescence spectroscopy, and fluorescence lifetime analysis. The possible CL enhancement mechanism was further investigated through reactive oxygen species scavenging experiments and singlet oxygen probe experiments. On this basis, an enhanced flow-injection chemiluminescence (FI-CL) method was developed for the determination of levetiracetam (LEV). Under the optimized conditions, the relative CL intensity exhibited a satisfactory linear relationship with LEV concentration over the range of 0.10–10.00 mM, with a limit of detection (LOD) of 2.02 × 10 −3 mM and a limit of quantification (LOQ) of 6.71 × 10 −3 mM. The proposed method was successfully applied to the commercial LEV pharmaceutical formulations, giving recoveries of 94.8–103.1% and relative standard deviations (RSDs) below 4.68%. These results demonstrate the potential of biomass-derived carbon dots for spectroscopic and characterization and chemiluminescence-based analytical applications.
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PubMed
高影响因子
Journal of Materials Chemistry A
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2026
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IF 9.2
Shengrui Cui,Chengliang Lin,Fangfang Dong,Mingxu Duan,Mengqiu Li,Abdul Majid,Ayaulym Belgibayeva,Yongcheng Jin
As a promising high-voltage cathode material candidate for next-generation high-energy-density lithium-ion batteries (LIBs), spinel-type LiNi0.5Mn1.5O4 (LNMO) has attracted significant attention due to its high operating voltage (~4.7 V). However, its intrinsic structural instability and severe surfacial side reactions lead to poor cycling stability and rate capability. This study presents an innovative low-temperature calcination strategy to synthesize Ti/F co-doped LNMO (LNMO-TiF3-x) cathode materials, utilizing TiF3 as a dual-functional dopant. Both experimental and theoretical investigations demonstrate that the introduced Ti3+/Ti4+ redox couple activates additional Mn-based capacity within the 4.2 V region, while contributing a minor yet measurable reversible capacity. Simultaneously, Ti/F co-doping strengthens the lattice through covalent bonding, effectively suppressing transition metal dissolution and synergistically enhancing cycling stability. Furthermore, Ti4+ doping expands the (111) lattice spacing, which facilitates Li+ diffusion kinetics and significantly enhances rate capabilities. The optimized LNMO-TiF3-4 exhibits outstanding performance, delivering 131.9 mAh g-1 at 10 C and maintaining 72.4% capacity retention after 1000 cycles at 5 C. This work not only demonstrates the high electrochemical performance of LNMO-TiF3-x but also offers new insights into bulk-interface synergistic engineering for advanced high-voltage cathode materials.
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高影响因子
Sustainable Energy & Fuels
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2022
·Vol. 7
·期 2
·398-408
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IF 6.813
Zhi Zou,Shuo Meng,Xiaolei Bian,Longcheng Liu
The generation of electricity from salinity difference energy between seawater and freshwater through a Capacitive Mixing (CapMix) system with solid electrodes was limited by intermittent energy production. In this study, a single-cell CapMix system using flow-electrode (F-CapMix) with a cross-chamber configuration was examined to produce electricity continuously from simulated seawater and freshwater. The effects of the flow-electrode electrolyte concentration, activated carbon loading, amounts of carbon black, and connected external resistance on the system performance were investigated. The results suggest that the system performance can be enhanced by increasing the activated carbon loading and carbon black amounts. Furthermore, to achieve the maximum power density of the system, the external resistance should be matched to the internal resistance. The maximum power density of the presented single-cell F-CapMix system was 74.3 mW m−2, which was comparable to those of previous CapMix and F-CapMix systems. In addition, this study also reveals that using only carbon black as the flow electrode is capable of producing electricity continuously for long-term operation. In summary, these results indicate the potential of F-CapMix and provide developing directions for further optimization.
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高影响因子
LANGMUIR
·
2023
·
IF 3.9
Chen Li,Yan Xiong,Lei Zhao,Haiqin Wan,Jun Li,Shenwen Fang,Meng Wang,Ming Duan,Jintian Ren,Yi Xiao
Experiment evaluation and mechanism analysis of separation performance are crucial for oily wastewater treatment. In this work, a fluorinated superhydrophobic/superoleophilic (F-SHPB/SOPL) surface was fabricated on a steel mesh substrate by double depositions of SiO2–TiO2 nanoparticles for high-roughness improvement and composite modification of fluorine-alkyl groups for low-energy achievement. Measurements of SEM, XPS, FTIR, laser scanning confocal microscope (LSCM), and excitation–emission matrix (EEM) were carried out for surface property characterization. The oil–water separation performances at the prepared F-SHPB/SOPL surface were investigated from experimental and simulation aspects. Separation tests, flux tests, and anti-contamination tests were performed by experimental methods. The results indicated that the surface showed excellent separation efficiencies (>99.2%) for oil–water mixture and oil-in-water emulsion, high permeate flux (>3000 L·m–2·h–1) for organic oils, and perfect anti-pollution/self-cleaning capacity for liquid and solid contaminations. The interaction energies and interaction distances were measured by ab initio molecular dynamics simulation (AIMD) simulations. With lower interaction energy (Eoil = −456.52∼−1044.22 eV) than that of water molecules (Ewater = −172.73 eV) and shorter distance (Doil = 4.42∼5.13 Å) than that of water molecules (Dwater = 11.49 Å), oil molecules showed higher interaction stability than water molecules on the F-SHPB/SOPL surface. The calculation revealed the essence of the oil–water separation phenomenon. This work not only proposes the fabrication methodology of the SHPB/SOPL material but also elucidates the intermolecular interaction for oil–water separation. The results can provide a fundamental basis for separation operation and removal treatment in industrial and domestic applications.
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PubMed
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
·
2023
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IF 5.4
Lili Song,Jiayi Wang,Jiaxuan Nie,Yue Zhang,Rui Han,Huimin Liu,Ningning Ma,Zhen Yang,Yubo Li
Ethnopharmacological relevance Tripterygium wilfordii Hook. f (TwHF) has been used as a traditional Chinese medicine for the treatment of rheumatoid arthritis and nephritis for hundreds of years. Aim of the study Although the efficacy of TwHF in the treatment of RA is definite, its serious side effects and toxicity have also received close attention from domestic and international researchers, so the clinical application of TwHF has been controversial. Most of the current TwHF toxicity studies have been conducted with animals in normal body states, but ignore the effects in pathological states. In this study, we aimed to find out the material basis and metabolic mechanism of the “toxicity/effectiveness” of TwHF on rat kidneys in different body states by using two-way orthogonal partial least squares (O2PLS) method. Materials and methods In the present study, TwHF was extracted by reflux extraction method using ethanol as the extraction solvent. Firstly, the effects of TwHF on rat kidneys in different body states were first evaluated by detecting creatinine and urea nitrogen levels and morphological changes in kidney pathology identified the components of TwHF in rats in different body states using UPLC-Q-TOF/MS technique. Serum and urine metabolomics were used to search for biomarkers and metabolic pathways by which TwHF exerts renal injury and protection, and finally, O2PLS correlation analysis was used to correlate the components with renal protective and injury biomarkers. Results TwHF was found to have a protective effect on the kidney of RA rats and an injurious effect on the kidney of normal rats at a dose of 11.25 g/kg/d. The UPLC-Q-TOF/MS technique was used to identify 34 components in TwHF extracts; 23 components and 57 metabolites were identified in the administered rats. O2PLS screened three substances as both toxic and pharmacodynamic components of TwHF, namely 3,5-dimethoxyphenyl-2-propenl-ol, kaurane-16,19,20-triol, and demethylzeylasteral + O, and found that these three components may exert nephrotoxic effects via the nicotinic acid and nicotinamide metabolic pathways and nephroprotective effects via the tryptophan metabolic pathway. Conclusion In this study, O2PLS analysis was used for the first time to combine biomarkers and components in vivo and found the material basis and metabolic mechanism of nephrotoxicity and efficacy of TwHF, which provided key clues for further study on the biological mechanism of toxicity and efficacy of TwHF.
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高影响因子
Oncology Letters
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2022
·Vol. 24
·期 5
·1-12
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IF 3.111
Haoran Jiang,Xianxin Wen,Xue Zhang,Bingyu Zhang
Concanavalin A (Con A), the first and most typical representative of the legume lectin family, has a potent anti‑liver cancer effect by inducing cell apoptosis and autophagy. However, its function in human liver cancer cell migration remains unclear. The present study investigated the effect of Con A on the viability and migration of human liver cancer cells with different metastatic abilities. It was found that Con A could reduce the viability of human liver cancer cells (HCCLM3, MHCC97L and HepG2) and human hepatocytes (MIHA). In addition, Con A could inhibit human liver cancer cell migration specifically without affecting hepatocytes. Sugar inhibition assay showed that glucose‑related sugar binding sites played an important role in the inhibition of Con A on human liver cancer cell migration. In addition, Con A could affect HCCLM3 migration by activating ERK1/2, JNK1/2/3 and p38 signaling in the MAPK pathway. Moreover, Con A could regulate fibrous actin (F‑actin) redistribution and assembly via the MAPK signaling pathway. However, Con A had no significant effect on the activation of matrix metalloproteinase (MMP)‑2 and MMP‑9 in HCCLM3 cells. In conclusion, Con A may bind to glucose‑related receptor protein, activating ERK1/2, JNK1/2/3 and p38 signaling in the MAPK pathway, further contracting cells and reducing the content of F‑actin of single cells to inhibit HCCLM3 cell migration. These results would deepen the links between human liver cancer cell migration and related glycoproteins or signaling molecules, and may provide a new perspective for Con A as a potential anticancer agent.
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高影响因子
危险品化学品经营许可证（带存储）