SENSORS AND ACTUATORS B-CHEMICAL
·
2018
·
IF 5.667
Yongbin Zhang,Yongfei Huang,Yongkang Yue,Jianbin Chao,Fangjun Huo,Caixia Yin
Because of the high toxicity of hydrazine, the development of ultrasensitive fluorescent probes for hydrazine has been challenging. In this work, an ultrasensitive fluorescent probe based on o -phthalaldehyde has been exploited for hydrazine. The probe was designed based on creating an efficient fluorophore by incorporating hydrazine into o -phthalaldehyde framework via an intermolecular condensation-cyclization reaction. The probe could quickly detect hydrazine and displayed a high sensitivity for hydrazine with a LOD of 1.9 nM (0.06 ppb), which is far below the U.S. Environmental Protection Agency standard (10 ppb). Moreover, the probe was successfully applied to the detection of hydrazine in real water samples and hydrazine vapor.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Guangchang Yang,Shenglong Yang,Feiyan Lai,Chunlei Tan,Jia Qiao,Hongqiang Wang,Qianqian Jin,Xiaohui Zhang
Current research has found the amorphous/crystal interface has some unexpected electrochemical behaviors. This work designed a surface modification strategy using NaBH4 to induce in situ conversion of the surface structure of Ni-rich LiNi0.8Co0.1Mn0.1O2 (NCM811) into TM-B-O amorphous interface layer. Oxidizing the surface from transition metals (TM) with high valence and reductive BH4– in a weak polar medium of ethanol results in an easy redox reacton. A TM-B-O amorphous structure is formed on NCM811 surface. The action of reactive wetting ensures a complete and uniform structure evolution of the surface crystals. The complete coverage protects the outer crystal and the heterogeneous interface impedance between the modified layer and bulk is reduced. More importantly, this amorphous interface layer through in situ conversion enhances the heterogeneous link at interface and its own structural stability. The modified NCM811 (TB2@NCM) treated with 1 wt % NaBH4 shows excellent electrochemical performance, especially cyclic stability. At a high cutoff voltage of 4.5 V, the capacity retention was 72.5% at 1 C after 500 cycles. The electrode achieves 173.7 mAh·g–1 at 10 C. This work creates a modifying strategy with potential application prospect due to simple technology with low-cost raw material under mild operating conditions.
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Catalysts
·
2026
·Vol. 16
·期 10
·919
·
IF 4.5
Guanghua Chen,Ning Cao,Zhonghao Deng,Xiangqing Zhang,Xiao Wang,Chong Peng,Liling Fang,Xusheng Ao,Shaobin Tan,Weibin Qiu
Nitrate, as a core component of water pollution, poses a severe threat to the ecological environment and human health. Electrochemical ammonia synthesis via nitrate reduction (NO3RR) is a highly promising sustainable technology, yet the simultaneous achievement of high activity and high selectivity remains a critical challenge in this field. Conventional Cu-based catalysts suffer from insufficient intrinsic activity and sluggish reaction kinetics. Moreover, the Cuδ+active sites are prone to valence evolution and structural reconstruction during electrocatalysis, making it difficult to meet the demands of long-term industrial-scale operation. To break through the aforementioned bottlenecks, this study proposes a rare-earth-regulated electronic structure engineering strategy. By constructing a Cu 3d–O 2p–La 4f gradient orbital coupling system, the surface chemisorption behavior of transition metals is precisely optimized, and the electron transfer pathway is efficiently modulated. The introduction of La not only strengthens electron delocalization and transport through the gradient orbital channel to enhance the adsorption and activation capability of NO3−, but also stabilizes the Cuδ+active sites via its unique 4f electronic structure, optimizes the adsorption energy of key intermediates, and synergistically boosts the catalytic performance. Experimental results demonstrate that the optimized La0.02-CuOxelectrode exhibits no obvious performance degradation after continuous operation for 30 h at a large current density of 2.5 A cm−2, delivering an ammonia yield of 186.99 mg·h−1·cm−2and a Faradaic efficiency of 94.39%. This rare-earth orbital coupling strategy provides a new research insight for the rational design of highly stable Cu-based NO3RR catalysts.
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INTERNATIONAL IMMUNOPHARMACOLOGY
·
2026
·
IF 5.6
Yangyang Song,Jie Song,Shuxian Liu,Jiyang Zhang,Ziyuan Liu,Haoyun Chen,Shiwen Wang,Tao Zhuang,Guisen Zhang
Depression and anxiety disorders are highly comorbid, yet their complex pathogenesis often limits the efficacy of monotherapy. Growing evidence implicates neuroinflammation in their pathogenesis. Co-drugs that linked two active molecules into a single compound and released the drugs after administration, which offering improved efficacy and tolerability than individual drug mixtures or monotherapy. In this work, five new co-drugs ODV-NSAIDs were synthesized from O -desmethylvenlafaxine (ODV) with non-steroidal anti-inflammatory drugs (NSAIDs) to achieve synergistic antidepression and anxiolytic effects. In vitro stability studies exhibited that these co-drugs can be metabolized into two single drugs within 60 min in simulated intestinal fluid. In both acute and chronic LPS-induced models, co-drug ODV-NAP significantly ameliorated depressive-like behaviors, evidenced by increased sucrose preference, reduced immobility in the tail suspension test (TST) and forced swim test (FST), and enhanced locomotion in the open field test (OFT). Furthermore, ODV-NAP decreased brain levels of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6) and malondialdehyde (MDA), while elevating serotonin (5-HT), norepinephrine (NE), and superoxide dismutase (SOD) activity. Nissl staining confirmed ODV-NAP significantly attenuated hippocampal neuronal damage. Moreover, western blotting revealed ODV-NAP inhibited the TLR4/NF-κB signaling pathway and upregulated BDNF and p-TrkB protein expression. ODV-NAP also inhibited LPS-induced p65 nuclear translocation in BV-2 microglia in vitro , and caused no toxicity in histology. Thus, co-drug ODV-NAP represented a promising novel candidate for treating depression and anxiety.
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Yuxin Zuo,Wenjie Wei,Yaran Wang,Shen Wang,Zhongjun Wang,Yu Shu,Zhiqi Liu
Linear low-density polyethylene (LLDPE) films have garnered significant attention. However, their poor thermal insulation properties and limited functionality severely restrict applications. This study prepared an LDH/LLDPE composite film (LD-1.5%K) with excellent optical properties and high-performance infrared insulation by blending γ-(methacryloyloxy) propyltrimethoxysilane (KH570) dry-modified layered double hydroxide (D200) with LLDPE. D200 exhibits a refractive index close to LLDPE. Its incorporation significantly reduces the average infrared transmittance of LLDPE films. Surface modification of D200 with KH570 promotes uniform blending with LLDPE. As a result, the LD-1.5%K film delivers outstanding optical properties (high visible light average transmittance of 90.8%, and low haze of 23.5%) The film also achieves low infrared average transmittance. This low infrared transmittance endows LD-1.5%K film with excellent heat retention (up to 4°C) and recyclable stability. Consequently, this approach promotes crop growth and offers good economic value. Applying LD-1.5%K in areas with strong ultraviolet radiation and cold climates is effective. It provides a promising solution for future cultivation in harsh environments.
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FOOD CHEMISTRY
·
2026
·
IF 9.8
Baozhu Shi,Yueran Ma,Dong Li,Zisheng Luo
Corosolic acid (CA) is a potent α-glucosidase inhibitor, but its application is limited by poor aqueous solubility and low bioaccessibility. In this study, a CA-stabilized water-in-oil (W/O) Pickering emulsion was proposed as a self-assembled delivery strategy to overcome these limitations. The emulsion markedly improved the gastrointestinal performance of CA, leading to a substantially higher bioaccessibility (28.54%) compared with crystalline CA (6.48%). Enzyme kinetic analysis for CA emulsion showed an apparent non-competitive inhibition mode and enhanced α-glucosidase inhibition with a reduced K i and IC 50 . Molecular dynamics simulations supported stable binding interactions consistent with an allosteric inhibition mechanism. Overall, this work demonstrates that structuring CA into a W/O Pickering emulsion can simultaneously improve its bioaccessibility and inhibitory efficiency, providing a conceptual framework for enhancing the functionality of poorly soluble triterpenoids.
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PubMed
高影响因子
JOURNAL OF STRUCTURAL CHEMISTRY
·
2025
·Vol. 66
·期 5
·1061-1069
·
IF 1.4
Hu J. R.,Wang J. H.,Liu J. S.
Two novel complexes, ( p -cymene)Ru( E 2 C 2 B 10 H 9 )(Ph 2 C(OH)CCH 2 ), designated as I ( E = S) and II ( E = Se), are successfully synthesized and characterized using NMR, IR, MS, and elemental analysis techniques. X-ray structural analysis is performed on complex I , which crystallizes in monoclinic system, space group P 2 1 / c with a = 11.6648(12) Å, b = 16.9404(17) Å, c = 15.6876(17) Å, β = 101.7490(10), C 27 H 36 B 10 ORuS 2 , M r = 649.85, V = 3035.0(5) Å 3 , D c = 1.422 g/cm 3 , Z = 4, F (000) = 1328, µ(Mo K α ) = 0.677 mm –1 , R = 0.0505 and ω R = 0.0793 for 3206 observed reflections ( I > 2σ( I )). Structural analysis indicates the coordination of C=C bonds, formation of C–S bonds, and B-substitution at B3 within the o -carborane cage, resulting in the formation of a Ru–B bond. Furthermore, the ruthenium atom coordinated to p -cymene complies with the 18-electron rule.
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ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Bin Xiao,Wen-hai Zhang,Peng-bo Wang,Lin-bo Tang,Chang-sheng An,Zhen-jiang He,Hui Tong,Jun-chao Zheng,Bo Wang
Phosphate-based polyanion-structured materials have attracted considerable attention as anode materials in lithium-/sodium-ion batteries due to their stable crystal structure, affordability, and environmental friendliness. V 2 (PO 4 )O was encapsulated into crumpled nitrogen-doped graphene (VPO@N-G) through a facile spray-drying method in which VPO particles were completely encapsulated by N-doped graphene. For the first time, VPO@N-G was explored as an anode material for sodium-ion batteries. The Na + storage behavior of VPO@N-G was systematically investigated at the voltage range of 0.01–3.0 V (versus Na/Na + ). Results indicated that the VPO@N-G anode can deliver a highly reversible discharge capacity of 539 mAh g −1 at 0.05 A g −1 and achieve a highly reversible discharge capacity of 235.9 mAh g −1 even at a high current density of 10 A g −1 . Thus, VPO@N-G can be applied as a high-rate anode material for sodium-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米复合材料
·
无机功能材料
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高影响因子
ADVANCED MATERIALS
·
2026
·
IF 29.1
Yang Hu,Xiaoyue Lu,Mingche Huang,Erhong Song,Bowen Chen,Feiyan Cai,Yuefan Xu,Yinjie Ruan,Chaobin Zeng,Ling Lin,Yan Gu,Yusheng Ding,Dewei Ni,Shaoming Dong
The initial oxidation stage of high-entropy carbides (HECs) is a decisive yet poorly understood “black box” that governs their ultimate performance for ultra-high-temperature applications. Here, we unveil a powerful strategy—predesigning carbon vacancies—to fundamentally enhance HECs oxidation resistance. By integrating in situ x-ray diffraction (XRD) and in situ transmission electron microscopy coupled with electron energy loss spectroscopy (TEM-EELS), we provide the first direct, atomic-scale visualization of oxygen atoms preferentially occupying these predesigned vacancies during the incipient oxidation stage, leading to the dynamic formation of a metastable metal–carbon–oxygen (M–C–O) interfacial layer. Our combined experimental and theoretical analyses reveal a dual enhancement mechanism: kinetically, M–C–O suppresses both oxygen adsorption on the (111) surface and its subsequent inward diffusion; thermodynamically, they stabilize the HEC lattice at elevated temperatures, thereby increasing the energy barrier for M─C bond cleavage. This work not only deciphers the atomistic origin of enhanced oxidation resistance but also establishes a simple, general, and efficient design principle for next-generation ultra-high-temperature ceramics.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Yaning Gong,Dingyu Qiu,Xingchen He,Junhui Shao,Najun Li,Dongyun Chen,Hua Li,Qingfeng Xu,Jianmei Lu
Hybrid HfO 2 -PMA subnanobelts are synthesized by cluster–nuclei co-assembly. • Subnanometer belt morphology enhances piezoelectric polarization response. • Hf-O-Mo interfacial orbital coupling enhances charge separation. • PMA redox pairs act as electron buffers for efficient CO 2 activation. • Dilute CO 2 is efficiently converted into syngas via piezocatalysis. Efficient piezocatalytic conversion of dilute CO 2 into syngas offers a sustainable route for industrial flue gas valorization, yet conventional piezoelectric materials are often constrained by lattice rigidity and rapid charge recombination under weak mechanical stress. Herein, we constructed ultrathin 1D HfO 2 -phosphomolybdic acid (PMA) hybrid subnanobelts (SNBs) via cluster-nuclei co-assembly. The subnanometer architecture and flexible morphology induce an intense polarization response by leveraging the piezoelectric size effect, enabling HfO 2 -PMA SNBs to achieve remarkable CO and H 2 production rates of 4.5 and 5.8 mmol g −1 h −1 , respectively. In-situ FTIR spectra and density functional theory (DFT) calculations reveal that the asymmetric Hf-O-Mo interfacial coordination induces spontaneous electron transfer from HfO 2 to PMA, constructing a robust built-in electric field. Concurrently, the reversible redox properties of PMA clusters further enrich interfacial electron density and facilitate CO 2 adsorption and activation through Hf-O-Mo coupling, lowering the formation energy barrier of the key *COOH intermediates. This interfacial electronic structure engineering strategy establishes a novel paradigm for mechanical-energy-driven CO 2 conversion and offers a new approach for designing emerging sub-nanometer piezocatalysts. Download: Download high-res image (202KB) Download: Download full-size image
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ADVANCED POWDER TECHNOLOGY
·
2026
·Vol. 37
·期 9
·105408
·
IF 4.5
Xiaoying Huang,Mingliang Xiang,Xiao Jin,Min Nie,Wei Xu,Rie Umetsu,Qing Yang,Yanan Chen,Jun-Qiang Wang,Yan Zhang
With the rapid advancement of power electronics toward high-frequency and miniaturization, there is an urgent demand for soft magnetic composites (SMCs) that possess both high permeability and low core loss. Herein, a novel Cr-O&(Ni,Zn)Fe 2 O 4 synergistic hybrid insulation was synthesized on FeSiBCCr amorphous powders via sequential hydrothermal and chemical co-precipitation methods. The oxygen partial pressure during annealing was optimized using 0.8 wt.% carbon powder to enhance the crystallinity and magnetic properties of the ferrite insulating coating. The resulting SMCs exhibited a saturation magnetization ( M s ) of 140.0 emu/g and an effective permeability ( μ e ) of 35.03. Notably, the core loss P 50mT/1MHz was reduced to 2143.10 mW/cm 3 , which is 50.72% lower than that of the core sample prepared by using raw powder without ferrite insulating coating. This synergistic hybrid insulation effectively suppresses inter-particle eddy currents and reduces domain wall pinning, offering a high-performance solution for high-frequency power electronics.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Shu Wang,Lifang Chen,Chuxin Qi,Zhen Song,Xiang Zhang,Zhiwen Qi
Dual-role ILs act as solvent and PTC for efficient aromatic O,S-glycosidations. • Multilevel screening and experimental validation identify the optimal IL. • Screened optimal IL achieves superior performance with various acceptors. • Mechanism analysis reveals the intensification mechanism.Provide a general strategy for screening ILs in aromatic O,S-glycosidations. Aromatic O,S-glycosidations between (thio)phenols and glycosyl halides are valuable for synthesizing aromatic O,S-glycosides but often limited by immiscible reactants. This work presents a reaction intensification strategy for efficient O,S-glycosidations by using dual-role ionic liquids (ILs) that act as solvent and phase transfer catalyst (PTC). Taking the reaction between 4-nitrophenol and 2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl bromide to form p-nitrophenyl-2,3,4,6-tetra-O-acetyl-beta-D-galactopyranoside as an example, multilevel computational screening, experimental validation, and comprehensive mechanistic analysis are performed to identify the optimal dual-role IL and understand the explicit intensification mechanism. Specifically, 11,890 IL candidates are first screened as solvents via solubility indicators and physical properties. The easiness of formation and hydrophobicity of ion pairs transferring the liquid–liquid interface are considered to screen ILs as PTCs. After these, 36 potential ILs are filtered out. Considering the availability, 1-octyl-3-methyl-imidazolium tetrafluoroborate is eventually tested via experiment and achieves the best performance. Compared with the basecase IL reported previously, the yield is improved from 34.2 % to 53 %. Meanwhile, this IL exhibits far more superior catalytic efficiency with different acceptors. The acceptors involved are common phenols (i.e., 4-nitrophenol, phenol and p-Cresol) and thiophenols (i.e., 4-methylbenzenethiol, 4-nitrobenzenethiol), which corresponds to O- and S-bridge products, respectively. Mechanism analyses reveal that the reaction is mainly intensified through the extraction effect of ion pair led by the IL, which promotes ion pair transfer from aqueous phase to IL phase and thus leads to better contacts of reactants and catalytic efficiency. Clearly, this work offers useful guidance to screen dual-role ILs as solvent and PTC for efficient aromatic O,S-glycosidations.
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