REACTIVE & FUNCTIONAL POLYMERS
·
2017
·
IF 3.151
Zhenfeng Huang,Runqi Liuyang,Chengyun Dong,Yufeng Lei,Anqiang Zhang,Yaling Lin
Polymeric quaternary ammonium salts (PQAS) have been widely used to prevent microbial contamination, but little is known about their activity against phytopathogenic fungi. Our previous report described the synthesis of two novel PQAS, namely a homopolymer of (2-methacrylamido) propyltetrabenzyldimethylammonium chloride (PQD-BC) and dimethylaminopropyl benzyl chloride-grafted polysiloxanes (PDMS-g-BC); we demonstrated their structure-activity relationship against phytopathogenic fungi such as R . solani and Fusarium oxysporum f. sp. cubense tropical race 4 (Foc4). Here, we analyzed the structure-activity relationship and toxicity mechanism of these compounds at the molecular level against Foc4 compared with the low molecular-weight quaternary ammonium salt benzalkonium chloride (BC). The results revealed that PQD-BC and PDMS-g-BC application inhibited the growth of Foc4 in a concentration-dependent manner and that PDMS-g-BC exhibited higher activity than PQD-BC. In addition, these polymers were found to induce cell death in Foc4 by disrupting the cellular structure integrity, such as the loss of the cell wall and plasma membrane integrity and oxidative stress (lipid peroxidation), leading to the release of intracellular contents and inducing mitochondrial dysfunction and interference with genomic DNA . The newly elucidated mechanism provides possible applications in which PQAS can be used against phytopathogenic fungi.
研究领域:
植物病理学
·
植物化学
·
微生物学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Qian Li,Jiuer Yu,Xiaoxue Zhu,Haojun Liu,Fang Yuan,Yuanmeng Fan,Xuezhong He,Dengji Xiao,Jian Yang
A topological confinement strategy is developed to construct atomically matched F-Nb 2 CT x /Nb 2 O 5 heterointerfaces. • The strongly coupled heterointerface enables 0.16068 |e| charge transfer and generates a built-in electric field. • The built-in electric field synergistically accelerates electron migration and Li + diffusion kinetics. • Excellent rate capability (257.7 mAh g −1 at 5.0 A g −1 ) and cycling stability (125.2% after 550 cycles) are achieved. • This work establishes a new heterointerface engineering paradigm for high-power, long-life lithium-ion battery anodes. Niobium pentoxide (Nb 2 O 5 ) is regarded as a promising anode material for lithium-ion batteries owing to its open-framework structure, competitive theoretical capacity, and intrinsic operational safety. However, its practical application is impeded by intrinsically low electronic conductivity and sluggish lithium-ion diffusion, leading to unsatisfactory rate capability and cycling stability. Herein, we propose a novel topological confinement strategy to construct atomically matched few-layer Nb 2 CT x /Nb 2 O 5 (F‑Nb 2 CT x /Nb 2 O 5 ) heterointerfaces for enhanced electron/ion kinetics. By leveraging the unique two-dimensional geometry of F‑Nb 2 CT x , a natural topological confinement space is established, inducing the in-situ derivation of well-ordered ultrafine Nb 2 O 5 nanocones with atomic-level lattice matching through the shared niobium element. This strongly coupled heterointerface enables electron transfer of 0.16068 |e| from F‑Nb 2 CT x to Nb 2 O 5 and establishes a built-in electric field, synergistically optimizing electron/ion transport kinetics. Benefiting from the strong interfacial coupling, the resulting electrode delivers a high reversible capacity of 430.0mAh g −1 at 0.2 A g −1 and maintains a remarkable rate capability of 257.7mAh g −1 even at 5.0 A g −1 . Moreover, it exhibits exceptional cycling stability with a capacity retention of 125.2% after 550 cycles at 1.0 A g −1 . This work establishes a new paradigm for overcoming the kinetic bottlenecks of oxide anodes through rational heterointerface engineering. A topological confinement strategy is developed to construct atomically matched few-layer Nb 2 CT x /Nb 2 O 5 (F-Nb 2 CT x /Nb 2 O 5 ) heterointerfaces. The unique two-dimensional geometry of F‑Nb 2 CT x provides a natural topological confinement space, directing the in-situ derivation of well-defined ultrafine Nb 2 O 5 nanocones with atomic-level lattice matching through the shared niobium element. This strongly coupled heterointerface enables electron transfer of 0.16068 |e| from F‑Nb 2 CT x to Nb 2 O 5 and establishes a built-in electric field, synergistically optimizing electron/ion transport kinetics. The resulting F‑Nb 2 CT x /Nb 2 O 5 heterostructured anode achieves an exceptional high-rate capacity of 257.7 mAh g −1 at 5.0 A g −1 and remarkable cycling stability, retaining 125.2% of its capacity after 550 cycles at 1.0 A g −1 . This work provides a new paradigm of heterointerface engineering to overcome the kinetic bottlenecks of oxide anodes for high-power, long-life lithium-ion batteries. Download: Download high-res image (207KB) Download: Download full-size image
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DOI
高影响因子
WOOD SCIENCE AND TECHNOLOGY
·
2026
·Vol. 60
·期 5
·81
·
IF 3.2
Huang Changzhu,Zhu Yaqin,Luo Yilong,He Bin,Wu Yunfei,Zhang Chunmei,Duan Gaigai,Han Xiaoshuai,Zhou Rongfei,He Shuijian,Jiang Shaohua
Efficient CO 2 capture remains challenging due to limited adsorption capacity and slow kinetics of conventional materials. Herein, we report a strong–weak acid modulation strategy for the in situ growth mesoporous UiO-66-F 4 within the aligned carbonized wood channels, yielding a hierarchical MOF–carbon composite denoted as meso-UiO-66-F 4 @CP. Dual-acid regulation enables highly uniform and controlled MOF growth under environmentally friendly aqueous conditions, avoiding the use of toxic organic solvents and ensuring a sustainable synthesis route. This composite effectively combines the macroporous framework of carbonized wood with the intrinsic micropores and mesopores of UiO-66-F 4 , establishing a hierarchical pore network that significantly enhances CO 2 diffusion, mass transport, and overall adsorption efficiency. Furthermore, the introduction of fluorinated linkers strengthens dipole–quadrupole interactions, generating abundant high-affinity adsorption sites specifically tailored for CO 2 molecules. Under the present experimental conditions, meso-UiO-66-F 4 @CP exhibits a CO 2 uptake of 38 cm 3 g⁻ 1 (approximately 1.70 mmol g⁻ 1 ) at 298 K and 1 bar, together with a measured adsorption rate of 0.085 mmol g⁻ 1 min⁻ 1 . This work provides a sustainable strategy for constructing hierarchical MOF–carbon composites with tailored pore structures and surface chemistry for CO 2 capture applications.
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DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Zhihua Zhao,Shixin Ma,Yao Wang
Hydrogen sulfide (H2S), a characteristic byproduct of sulfur-containing amino acid decomposition during fish spoilage, serves as a critical freshness indicator and poses substantial food safety risks. This study develops a novel H2S gas sensor using a ZnWO4/f-MWCNTs nanocomposite synthesized via one-step hydrothermal method. The incorporated functionalized multiwalled carbon nanotubes (f-MWCNTs) improve the sensing material’s conductivity, dispersion stability, and gas adsorption capacity. XRD, XPS, FTIR, SEM, TEM, and BET analyses verify the composite’s successful synthesis and optimal physicochemical properties. The ZnWO4/f-MWCNTs sensor demonstrates exceptional H2S detection at 120 °C, achieving a response value of 18.67 (Ra/Rg) to 50 ppm of H2S with fast response/recovery times (14 s/30 s) and excellent selectivity against interferents. Real-time monitoring of fish spoilage further confirms its practical utility, highlighting the sensor’s potential for meat freshness assessment and food safety applications.
研究领域:
材料科学
·
传感器与检测技术
·
食品安全
·
纳米技术
·
环境监测
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产品关联
DOI
PubMed
高影响因子
COMBUSTION AND FLAME
·
2025
·
IF 6.2
Xiandie Zhang,Haozhe Li,Xuxu Cui,Xinwen Ma,Jiaming Liu,Xiaode Guo,Xiang Zhou
The passivation layer of Al powder hinders the mass transfer during Al combustion. Fluorinated oxidants, such as metal fluorides and fluoropolymers, substantially improve the combustion behaviour of Al powder. Herein, a simple solvothermal method is employed to produce a high-entropy acicular accumulational fluorine-containing oxidiser based on ammonium fluoroferrates. The characterization results indicate that heating the fluorine-containing oxidiser can release gaseous products of HF and NH 3 . HF etches the passivation layer, and NH 3 provides kinetic energy to the fuel, resulting in multiple hot spots and secondary combustion as well as prevention of reaction sintering. Compared with traditional FeF 3 , this novel fluorine-containing oxidiser considerably improves the combustion of Al powder by reducing its onset temperature as well as increasing its exothermic enthalpy, flame area and F release ability.
研究领域:
材料科学
·
燃烧化学
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DOI
高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 11
·期 1
·141-148
·
IF 14.511
Juhong Lian,Kengo Shibata,Yejun Xiao,Shiwen Du,Toshiya Tanaka,Yu Qi,Osamu Ishitani,Kazuhiko Maeda,Zhaochi Feng,Fuxiang Zhang
To efficiently utilize solar energy and catalyze the water splitting reaction under visible-light, a novel strategy of first nitridation and subsequent calcination post-treatment methods is developed to prepare N,F-codoped TiO2 (TNOF) photocatalysts in this work. The prepared sample exhibits obvious band-to-band absorption with an edge up to ca. 580 nm. After calcinating the nitrided sample at low temperature in air, the Ti3+ defects, which could trap photo-generated electrons during photocatalysis, would be significantly reduced. Under visible-light irradiation, the TNOF photocatalyst presents excellent water oxidation performance in AgNO3 aqueous solution or Fe3+ reversible electron acceptor. Based on the obtained TNOF sample, an efficient Z-scheme water overall splitting system is successfully constructed combining with a known Ru/SrTiO3:Rh H2-evolution photocatalyst. Moreover, the TNOF photocatalysts also show good visible-light-driven water reduction and CO2 reduction activities. This work presents a novel strategy to prepare nitrogen-incorporated oxide photocatalysts with low defect concentrations for photocatalytic applications.
研究领域:
材料科学
·
催化化学
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DOI
高影响因子
ORGANIC & BIOMOLECULAR CHEMISTRY
·
2020
·Vol. 18
·期 34
·6724-6731
·
IF 3.412
Fazhou Yang,Ziyan Liu,Hao Liu,Yu Shangguan,Hao Deng,Jiaxing Huang,Yumei Xiao,Hongchao Guo,Cheng Zhang
A copper-catalysed cascade ester amidation/radical cyclization of 2-amino-1,4-naphthoquinones with α-bromocarboxylates to afford benzo[f]indole-2,4,9(3H)-triones is described, and the reaction has a broad substrate scope and the desired products are obtained in mostly moderate to good yields. Mechanism-probing experiments indicate that the otherwise challenging radical coupling reaction of α-bromocarboxylates with 2-amino-1,4-naphthoquinones is facilitated by a 5-endo radical cyclization.
研究领域:
有机化学
·
合成化学
·
自由基化学
·
催化
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DOI
高影响因子
ULTRASONICS SONOCHEMISTRY
·
2025
·
IF 9.7
Silei Zhang,Qingbo Huang,Xiangmin Kuang,Chaofan Guo,Yongli Jiang,Fujie Zhang,Daihong Pan,Ming Du,Sakamon Devahastin,Junjie Yi
Conventional pretreatments of star anise ( Illicium verum Hook. f.) often result in uneven color development, long drying duration and substantial aroma losses, hence limiting final product quality and market value. To address these issues, the present study hypothesized that ultrasound-assisted electrolyzed water thawing (UEWT) as pretreatment prior to drying could accelerate drying and enrich flavor of star anise by inducing appropriate structural and biochemical changes. The effects of UEWT were compared with those of deionized water thawing (DWT), electrolyzed water thawing (EWT), ultrasound-assisted deionized water thawing (UDWT), and hot water blanching (HWB), with a focus on drying kinetics, microstructure, relevant enzyme activities, antioxidant activities and volatiles composition of star anise were evaluated. UEWT reduced drying time to 8 h, with the highest drying rate (0.75 kg/(kg·h)), free water content (48 %) and oil-associated NMR signal (23 %). Enhanced cell disruption enhanced moisture migration and volatiles release, while elevated PPO and POD activities intensified desirable coloration ( a* = 27.3; Δ E = 26.8); antioxidants retention was nevertheless compromised (phenolics 45.94 mg GAE/g; flavonoids 2.35 mg GAE/g). UEWT also resulted in the highest content of trans -anethole (1100.40 μg/kg) and formation of α-terpineol, both of which are key contributor to characteristic aroma of star anise. These findings demonstrate that UEWT effectively balances drying rate, color formation, and aroma retention, offering a practical pretreatment for quality-oriented drying of spice fruits. Future studies should optimize ultrasonic parameters and evaluate industrial-scale integration for continuous spice processing.
研究领域:
食品科学与技术
·
采后生理学
·
超声加工
·
植物生物化学
·
干燥技术
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产品关联
DOI
PubMed
高影响因子
Coatings
·
2023
·Vol. 13
·期 3
·626
·
IF 3.4
Xinglong Chen,Wenyue Guo,Rui Li,Peng Du,Xiaowen Zhan,Shan Gao
The development of cobalt-free P2-Na2/3Ni1/3Mn2/3O2cathodes is hampered by poor electrochemical performance, resulting from structural instability during high-voltage cycling. Herein, Li+and F−ions are introduced simultaneously via a simple sol–gel method. The F not only enters the lattice but forms chemically stable NaF on the surface. The modified electrode delivered significantly better electrochemical performance than the pristine one, including much-enhanced capacity retention (64% vs. 36%, 100 cycles) at 0.5 C and a four-time higher capacity output at 10 C. The ex situ XRD and in situ Raman analysis revealed cyclability enhancement mechanisms in terms of inhibiting the P2–O2 phase transition and Na+/vacancy ordering. The conductivity measurements (based on AC impedance and DC polarization) and GITT analysis proved, on both bulk material and electrode levels, that Na+conduction and, thus, rate performance is notably promoted by doping. The individual contribution of Li and F to the overall performance improvement was also discussed. Furthermore, a solid-state sodium-metal battery was successfully demonstrated with the modified cathode. The above results verify that Li+/F−incorporation can enable enhancements in both cyclability and rate capability of the P2-Na2/3Ni1/3Mn2/3O2cathodes and are expected to provide a new perspective for the rational design of high-performance layered oxide cathode materials for progressive sodium-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
固态电池
·
离子传导
·
功能材料
·
电池材料
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Daoyan Feng,Yu Liu,Chen Zhao,Han Su,Xia Kong,Yu Zhong,Junzhang Wang,Zhou Xu,Xiuli Wang,Xingzhong Guo,Jonghee Lee,Jiangping Tu
Achieving a stable interface between sulfide solid-state electrolytes (SSEs) and high-voltage Ni-rich oxide cathodes is crucial for enhancing the electrochemical performance of all-solid-state batteries (ASSBs). However, addressing the interface challenges through surface coating modifications remains a significant hurdle. In this work, a straightforward modification approach is proposed to achieve a highly stable interface by surface dual doping of Zr and F in LiNi 0.83 Co 0.12 Mn 0.05 O 2 (NCM83) cathodes via acid washing followed by annealing. First-principle calculations demonstrate the thermodynamic stability of Zr-F doped NCM83, effectively inhibiting the formation of unfavorable interfaces with decomposition products. The modified NCM83-1% ZrF cathode exhibits exceptional long-cycle stability, retaining 85.1% of its capacity after 1000 cycles at 0.5C rate. This simple and scalable modification strategy offers a new perspective for the design of high-performance sulfide-based ASSBs.
研究领域:
材料科学
·
电化学
·
固态电池
·
能源存储
·
界面工程
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DOI
高影响因子
Catalysis Science & Technology
·
2023
·Vol. 13
·期 13
·3916-3926
·
IF 5
Guangcheng Zou,Rui Cao,Conghui Cui,Yuqiang Luo,Chen Huang,Xinwei Cui,Zhiwen Wang,Yujie Song
Monolayer Bi2MoO6 nanosheets doped with F atoms (F-BMO-NSs) were developed as catalysts for the one-pot alkylation of nitrobenzene with benzyl alcohol. 95.88% conversion of nitrobenzene coupled with 99.98% selectivity of n-benzylideneaniline was achieved over the F0.04-BMO-NSs under visible light irradiation and 1 atm N2 at room temperature. XPS and EPR results suggested that F doping not only produced enhanced Lewis acid sites (Bi3+ and Mo6+), but also generated Lewis base sites (Mo5+). In situ FTIR spectra revealed that benzyl alcohol would be selectively adsorbed on the enhanced Lewis acid sites via Bi3+ (Mo6+)⋯OH–C– interface coordination, resulting in the activation of HO–C–. Moreover, nitrobenzene would be chemisorbed on the Mo5+ basic sites via Mo5+⋯NO2 coordination, inducing charge transfer from Mo5+ to –NO2. Under visible light irradiation, hydrogen transfer takes place from the chemisorbed benzyl alcohol to nitrobenzene generating benzaldehyde and aniline, finally coupling to form the imine. Based on these surface cooperated functional sites, a synergistic mechanism has been proposed to elucidate the accurate structure–performance relationship. This work provides a new perspective for the design of high activity, high selectivity and high stability photocatalysts for the precise synthesis of imines.
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DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 8
·4319-4333
·
IF 11.9
Chaojie Lyu,Jiarun Cheng,Yuquan Yang,Jiwen Wu,Kaili Wu,Yunguo Yang,Woon-Ming Lau,Ning Wang,Dawei Pang,Jinlong Zheng
Highly dispersed Pt NPs anchored in hierarchically N,F co-doped hollow carbon spheres (Pt@N,F-HCS) were synthesized through a template-assisted strategy followed by fluorination and wet chemical reduction. Due to the introduction of F heteroatoms into the carbon skeleton, the degree of d–π electron conjugation between Pt NPs and N,F-HCS can be enhanced. This will lead to higher Ptx+ content in Pt species, which is beneficial for the effective adsorption of *OOH intermediates and is conducive to O–O bond breaking and triggers the direct 4-electron transfer mechanism for the ORR. In particular, the onset potential and half-wave potential values for the ORR are more positive than Pt@N-HCS without F doping, even outperforming 20%Pt/C. Besides, the Pt@N,F-HCS catalyst also possesses the smallest onset potential and largest methanol oxidation current for the MOR. In alkaline media, abundant OH− will be adsorbed around the Ptx+ sites due to its higher positive valence, and the reaction intermediate COads generated in Ptx+ sites will be further oxidized to the final product, CO2, thus improving the MOR activity and CO tolerance capacity. This heteroatom-doping strategy is favorable for enhancing the interaction between Pt NPs and the carbon-based support, and also provides insight to promote the activity and selectivity for direct methanol fuel cells.
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高影响因子
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