RAPID COMMUNICATIONS IN MASS SPECTROMETRY
·
2026
·Vol. 40
·期 7
·e70035
·
IF 1.7
Qingqin Liu,Xiaobao Lv,Chaojun Li,Ping Xing,Lin Ling,Hao-Yang Wang
Rationale Many perfluoroalkyl and polyfluoroalkyl sulfonic/sulfinic acids and their derivatives are classified as perfluoroalkyl and polyfluoroalkyl substances (PFASs). The use of mass spectrometry techniques to analyze these compounds has attracted considerable research attention. Methods In this article, we employed high-resolution electrospray ionization tandem mass spectrometry (HR-ESI-MS/MS) and all-ion fragmentation (AIF) in negative ion mode to investigate gas-phase F-atom migration reactions of various perfluoroalkyl and polyfluoroalkyl sulfonic/sulfinic anions, particularly those yielding FSO 3 − or FSO 2 − . Results HR-ESI-MS/MS of CF 3 SO 3 − yielded an unexpected product ion FSO 3 − , representing a distinct pathway of gas-phase F-atom migration from C-atom to S-atom accompanied by the loss of CF 2 . Similarly, HR-ESI-MS/MS of CF 3 SO 2 − produced a dominant product ion FSO 2 − also via CF 2 elimination. Complementary ESI-MS/MS and AIF experiments on these anions confirmed that FSO 2 − and/or FSO 3 − are their characteristic fragmentation ions. Conclusion Theoretical calculations of gas-phase reactions CF 3 SO 3 − → FSO 3 − + CF 2 and CF 3 SO 2 − → FSO 2 − + CF 2 were performed to investigate the possible F-atom migration mechanisms. These results show that FSO 3 − at m/z 99 and/or FSO 2 − at m/z 83 could serve as diagnostic ions for structural elucidation of perfluoroalkyl and polyfluoroalkyl sulfonic/sulfinic acids and their derivatives in non-target PFASs analyses by using mass spectrometry.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
·
2022
·Vol. 46
·期 10
·14534-14545
·
IF 4.672
Yicen Liu,Bing Zhu,Yan-gai Liu,Hang Zhao,Zekun Wang,Liming Wu,Xi Zhang,Jian Chen
Summary In this study, we synthesized a bimetal hydroxyl fluoride, Co 0.6 Zn 0.4 (OH)F, with an overlapping nanoneedle structure using a simple hydrothermal method. The synthesized Co 0.6 Zn 0.4 (OH)F was used as a new electrode material to study its electrochemical performance. Because of the synergy between Co and Zn and the high ionicity of fluorides, the Co 0.6 Zn 0.4 (OH)F electrode exhibited a discharge capacity of 1355.5 mAh g −1 during the first charging and discharging cycle. After 400 cycles at a current density of 2 A g −1 , the Co 0.6 Zn 0.4 (OH)F electrode showed an excellent specific capacity of 756 mAh g −1 . The Co 0.6 Zn 0.4 (OH)F electrode also exhibited an excellent capacitance contribution rate, indicating good rate performance. In addition, the hydroxyl and oxygen vacancies in the electrode material promoted the lithium/dilithium reactions. Therefore, Co 0.6 Zn 0.4 (OH)F is an excellent lithium storage material with high rate; thus, it has a certain potential application value in the future.
研究领域:
材料科学
·
电化学
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PLoS One
·
2026
·Vol. 21
·期 5
·e0339014
·
IF 2.8
Yan Zhang,Hongshen Guo,Yanping Xu,Xiaochuan Chen,Miaomiao Zhang,Naicheng Li,Abdullah Gera
Long-term monoculture of ginger triggers Fusarium wilt, a disease caused by Fusarium oxysporum f. sp. zingiberi ( Foz ). However, the interaction between autotoxins and pathogens remains poorly understood. This study examined the allelopathic effects of four autotoxins, syringic acid, coumarin, ferulic acid, and 7-hydroxycoumarin, on the growth, reproduction, and virulence traits of Foz . These compounds were previously identified as inhibitors of ginger growth and enzyme activity. The results revealed that the responses of Foz varied, likely because of the structural differences among the autotoxins. Syringic acid significantly inhibited mycelial growth, sporulation, and spore germination, while markedly enhancing the activity of cell wall-degrading enzymes and mycotoxin synthesis, as evidenced by the upregulation of FUB3 and FUB9 . Coumarin demonstrated a pronounced inhibitory effect on biomass production while concurrently stimulating sporulation and mycotoxin synthesis, as indicated by the upregulation of FUB6 and FUB9 . Ferulic acid treatment reduced the activity of cell wall-degrading enzymes and spore germination, while upregulating sporulation and mycotoxin synthesis. A similar pattern was observed with 7-hydroxycoumarin, which exerted a strong inhibitory effect on mycelial growth, biomass production, mycotoxin synthesis, and FUB gene cluster expression, except for FUB1 and FUB3 expression. In conclusion, four autotoxins exhibited diverse defensive roles against Fusarium wilt, whereas the pathogen enhanced its pathogenicity to counter host regulations. This study provides the first evidence of an interaction between ginger autotoxins and Foz .
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Liang Dong,Jinghan Zhang,Qifeng Han,Yujie Feng,Shengjun Sun,Yongchao Yao,Mohamed S. Hamdy,Changliang Liu,Xuping Sun
Seawater electrolysis holds great promise for green hydrogen production, yet chloride ions in seawater can trigger competing chlorine chemistry, generating corrosive substances that degrade anodic performance. In this work, we report an amorphous F-doped NiFeP catalyst grown in situ on nickel foam (F-NiFeP/NF) for durable alkaline seawater oxidation. F-NiFeP/NF requires an overpotential of only 353 mV to achieve a current density of 1000 mA cm −2 and operates stably for 1000 h in alkaline seawater. F doping not only accelerates catalyst surface reconstruction processes but also favors the selective adsorption of OH − on the anode surface. Furthermore, an anion exchange membrane electrolyzer assembled with F-NiFeP/NF as the anode and Pt/C/NF as the cathode runs stably at 500 mA cm −2 for 450 h, demonstrating its potential for practical seawater electrolysis.
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Green Carbon
·
2026
·
IF 14.2
Guowei Weng,Luqing Zhao,Lexian Dong,Zihua Wang,Jian Xue,Guanghu He,Haihui Wang
The development of efficient H 2 separation technology at intermediate temperatures (300~500 °C) is crucial for bridging the gap between upstream H 2 production (e.g., the water-gas shift reaction) and downstream utilization (e.g., ammonia synthesis) processes. Herein, a fluorine (F)-doping strategy is developed to enhance the proton conductivity of the BaZr 0.1 Ce 0.7 Y 0.1 Yb 0.1 O 3-δ membrane material. F incorporation into the oxygen lattice sites effectively weakens the metal–oxygen bonds and increases the concentration of oxygen vacancies, thereby improving the proton conductivity of the optimized BaZr 0.1 Ce 0.7 Y 0.1 Yb 0.1 O 3-δ F 0.1 (BZCYYbF 0.1 ) membrane. A high-efficiency F-doped electrochemical H 2 pump (EHP) with the configuration Ag-Pd|BZCYYbF 0.1 |BZCYYbF 0.1 -Ni is constructed for H 2 separation at intermediate temperatures. The constructed F-doped EHP exhibits excellent H 2 separation performance with a maximum H 2 permeation flux of 2.25 mL·min -1 ·cm -2 at a current density of 300 mA·cm -2 and near-100% Faradaic efficiency during various mixed-gas separation processes, which is much superior to that of state-of-the-art mixed protonic–electronic conducting membranes operating at 700~1000 °C. This study demonstrates the technical feasibility and high efficiency of EHPs for H 2 separation driven by electrical energy and offers an effective strategy to enhance the performance of EHPs at intermediate temperatures.
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ChemPhotoChem
·
2026
·Vol. 10
·期 3
·e202500362
·
IF 3
Xianye Wang,Hao Ge,Chao He,Guanying Cao
All-inorganic perovskite quantum dots (QDs) (CsPbX 3 , X = Cl, Br, I) have shown great promise in optoelectronic applications but are severely hindered by their poor environmental stability and photoluminescence (PL) quenching. In this work, we report a novel approach for enhancing both stability and optical performance by insitu growth of CsPbBr 3 QDs within a borosilicate glass matrix, assisted by SrF 2 and Sm 2 O 3 codoping. The introduction of F − ions from SrF 2 modifies the glass network structure, promoting uniform nucleation and growth of QDs. Simultaneously, Sm 3+ doping, through partial incorporation into the CsPbBr 3 QD lattice, passivates surface defects and induces lattice contraction, which enhances quantum confinement effects. At the optimal Sm 3+ concentration of 1 mol%, the PL intensity increases by 332.8%, the photoluminescence quantum yield rises from 22.01% to 37.5%, and the fluorescence lifetime extends from 95.05 to 127.69 ns. The glass encapsulation provides long-term air and water stability, outperforming conventional ligand-capped QDs. Moreover, the developed materials were successfully applied in high-brightness green and white light-emitting diodes, achieving wide color gamut coverage (up to 129.4% NTSC), and demonstrated strong potential in forensic fingerprint visualization. These results provide a new pathway for developing stable, multifunctional perovskite-based optoelectronic materials. Graphical This study demonstrates a dual strategy of F − /Sm³ + codoping and glass encapsulation to significantly enhance the luminescence performance and stability of CsPbBr 3 quantum dots. Optimal Sm³ + doping (1 mol%) yields a 332.8% increase in photoluminescence intensity, improves quantum efficiency from 22% to 37.5%, and extends fluorescence lifetime to 127.69 ns. The glass matrix provides exceptional environmental stability, retaining 78.65% initial luminescence after 50 days in air. Resulting light-emitting diode devices achieve a wide color gamut covering 129.4% of the NTSC standard.
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高影响因子
FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8.8
Zilu Wang,Baosong Wang,Ziyan Yue,Wenxuan Yang,Demao Li,Wenlu Li,Yanbo Wang
Favorable texture and clean odor of F. venenatum protein for next generation alternative protein. • F. venenatum protein had greater hardness than soy protein due to its dense mycelial network. • A mild mushroom aroma and fewer off-odors were found in F. venenatum protein. • Heat treatment barely affects odor profiles of F. venenatum protein and free amino acids. The growing demand for sustainable food systems and alternative proteins has positioned mycoprotein as a promising food ingredient. In this study, the textural properties and odor profiles of F. venenatum TB01 protein were systematically characterized to investigate the differences with soy protein and pork through multiple approaches. The naturally formed hyphal network of F. venenatum protein forms a fibrous microstructure like animal muscle, resulting in a relatively firm texture. Compared with soy protein and pork, F. venenatum protein exhibited minimal off-odor and featured a mild mushroom odor. Specifically, 40 compounds were identified by GC–MS across all samples, of which 12 odor activity compounds were detected in F. venenatum protein. Notably, their concentration was considerably lower than those found in soy protein. Correlation analyses across different protein types consistently showed that meaty aroma was positively correlated with hexanal and ( E,E )-2,4-decadienal, while off-odors were negatively correlated with these compounds. Finally, this study highlights the potential of F. venenatum protein as a promising ingredient with minimal off-odor and desirable textural properties, together with favorable nutritional attributes that may contribute to healthier food products. These findings provided a scientific basis for its application in next-generation alternative proteins and functional foods. Download: Download high-res image (179KB) Download: Download full-size image
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EMBO Molecular Medicine
·
2026
·
IF 7.9
Liu Lijie,Yan Mengrong,Liang Ruoxu,Wu Qingxin,Qu Changbin,Wu Huiqi,Liao Zhi,Chen Huiyu,Zou Jingjing,Sun Zeyun,Niu Dongyu,Wu Liyuan,Zhao Li,Dai Jialing,Shen Jialun,Zhang Long,Zhang Wei,Peng Wei
Respiratory syncytial virus (RSV) remains a major cause of severe respiratory disease, and stabilization of the prefusion (preF) conformation of the F glycoprotein is central for vaccine development. Here, we report a structure-guided engineering strategy that enhances preF stability by reducing the hydrophobic cavity within the trimeric F protein. Targeted modifications at metastability-associated sites generated RVF-88, a disulfide-free stabilized preF immunogen that preserves key neutralizing epitopes, including antigenic site Ø, while exhibiting improved structural integrity and long-term storage stability. Formulated as an unadjuvanted bivalent vaccine, RVF-88 elicited potent neutralizing antibody responses and durable immune protection lasting up to 5 months in mice. Vaccination also protected both mice and cotton rats against RSV challenge. Structural analyses confirmed the intended cavity-reduction design, revealing a reduced apical hydrophobic cavity volume and surface area while maintaining the prefusion architecture. Together, these findings establish hydrophobic cavity reduction as a rational strategy for stabilizing prefusion RSV F and provide a promising next-generation vaccine candidate with improved stability and immunogenicity for further clinical development.
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高影响因子
CHEMISTRY OF MATERIALS
·
2026
·
IF 7.1
Jianxun Wang,Hongxin Tao,Shuo Li,Ruoxi Wang,Jingyu Qian,Xiaoyu Zhang
Fluorine ion doping serves as an effective strategy for enhancing the stability of perovskite quantum dots (QDs), which is crucial for constructing high-performance and highly stable optoelectronic devices. However, conventional fluorination methods often rely on highly toxic fluorine sources, such as hydrofluoric acid (HF), posing safety hazards and limiting large-scale fabrication. Herein, we propose a simple and universal in situ fluorination strategy based on the reaction between benzoyl fluoride and oleylamine under mild conditions, which safely generates HF and enables efficient fluorine doping. The incorporated fluoride ions enter the CsPbI3 lattice, effectively suppressing octahedral tilting and thereby enhancing structural stability. The resulting F-doped CsPbI3 QDs achieve a photoluminescence quantum yield close to unity and exhibit a 15-fold improvement in T95 under light illumination stability testing. Deep-red light-emitting diodes fabricated from these QDs deliver a peak external quantum efficiency of 25.7% and show a 20-fold enhancement in operational lifetime. Furthermore, this approach is successfully extended to green- and blue-emitting perovskite QD systems, demonstrating its broad potential for full-color display applications. This work provides a rational and scalable chemical pathway to address the intrinsic instability of perovskite QDs, paving the way toward efficient and durable optoelectronic devices.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2025
·
IF 4.1
Shulang Chi,Hongyun Li,Mingyu Jia,Changkun Cai,Yuanyuan Liu,Zhenping Wang,Shengli An
The pollution and limitations of fossil energy are increasing year by year, and solid fuel cell is widely studied as a clean energy. Among electrolyte, SDC, as a common electrolyte material in fuel cell, still has some problems such as low electrical conductivity and electron conduction generated by Ce 4+ /Ce 3+ in reducing atmosphere. In this article, the influence of F − doping on SDC and electrical conductivity in Ce 0.8 Sm 0.2 O 1.95-δ-0.5x F x (CSOF)powder was investigated. A series of Ce 0.8 Sm 0.2 O 1.95-δ-0.5x F x (x = 0.1, x = 0.03, x = 0.01) solid electrolyte powders were prepared by the glycine-nitrate self-propagating method. Through phase characterization of CSOF, When the F − doping reaches 0.03, the sample has the best conductivity, 55.91*10 −3 S/cm at the temperature of 750 °C, and the conductive activation energy is 0.75 eV, which is suitable for the preparation of a single cell. In order to investigate the effect of conductivity on Ce-based materials in reducing atmosphere. Under H 2 conditions, the conductive activation energy is 0.34 eV. At a temperature of 750 °C and the current density of 0.786 A/cm 2 , the power density is maximized at 0.366 W/cm 2 , and the maximum open-circuit voltage at 550 °C is 0.986 V. This demonstrates that F − doping is beneficial for enhancing the conductivity of the electrolyte.
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高影响因子
npj Materials Degradation
·
2025
·Vol. 9
·期 1
·1-14
·
IF 7.6
Xiang Tengfei,Chen Xuxin,Wang Jihuai,Liu Di,Cui Linjing,Wang Tao,Zhang Zhenya,Yang Yang,Zhang Shihong
Metal corrosion poses significant economic and safety challenges across industries, necessitating efficient cathodic protection strategies. Triboelectric nanogenerator (TENG) offers a promising self-powered solution by harvesting ambient mechanical energy. This study presents the design of TENG based on fluorinated ZIF-67/PDMS (F-ZIF-67/PDMS) composites for enhanced cathodic protection of 304 stainless steel (304SS). The present study integrates dual regulation of microstructure and surface energy to synergistically enhance the triboelectric performance. While loading 5 wt.% ZIF-67, the TENG achieved remarkable output performance with an open-circuit voltage of 187.14 V, short-circuit current of 37.46 μA, and transferred charge of 72.54 nC, delivering a peak power of 3.08 mW. When integrated with a cathodic protection system, the TENG significantly reduced the open-circuit potential (OCP) and the corrosion rate. This work advances the integration of MOF-based triboelectric materials with energy harvesting technologies, offering a sustainable approach to mitigating metal corrosion.
研究领域:
材料科学
·
纳米技术
·
电化学
·
能量收集
·
腐蚀工程
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高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Guojiang Ye,Lie Wen,Hui Liu,Bochen Jiang,Xiaojing Sui,Chengzhi Zhang
s The development of high-performance bifunctional coatings with integrated anti-corrosion and anti-icing properties for extreme marine environments remains challenging. Herein, we report a novel superhydrophobic composite coating based on high-entropy oxides (HEOs), which ensures synergistic protection through multiscale structural engineering. A hierarchical micro/nanostructure with the incorporated vapor-phase nano-SiO₂ phase enhances the surface roughness (Ra = 0.877 μm) and superhydrophobicity (the water contact angle of 153.8° and the sliding angle of 4.5°) while also effectively suppressing sedimentation of HEO(Ce) particles in the epoxy matrix. The Ce³⁺/Ce⁴⁺ redox cycle within HEO(Ce) endows the passivation film with dynamic self-healing capability, yielding a low-frequency impedance modulus (|Z| 0.01 Hz) of 6.52 × 10 10 Ω·cm² after 7-day immersion in 3.5 wt% NaCl solution, which is 6 orders of magnitude higher than that of pristine epoxy. Furthermore, the coating demonstrates exceptional anti-icing performance, exhibiting a delayed ice nucleation time of 1134 s at -20 °C and maintaining the surface temperature above the freezing point under -10 °C under 1 Sun irradiation. The mechanical robustness tests confirm the retained superhydrophobicity after 5-meter sandpaper abrasion and Grade 1 adhesion strength conforming to GB/T 9286–2021 standard. Therefore, this work offers a physical barrier–chemical passivation–interface modulation synergistic strategy that effectively addresses the longstanding challenge of mutual constraints between corrosion resistance and icephobicity in conventional coatings, providing an innovative solution for marine equipment protection in harsh environments.
研究领域:
材料科学
·
腐蚀工程
·
表面化学
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防除冰技术
·
海洋涂层
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危险品化学品经营许可证（带存储）