ACS Applied Nano Materials
·
2025
·
IF 5.5
Fei Zhang,Lijun Wu,Junhui Jiang,Kai Sun,Wei Zhou,Jiahong Tian,Yanqing Gao
In this study, the microwave absorption of the high-entropy oxide nanocomposite (Mn0.2Co0.2Ni0.2Fe0.2Cu0.2)3O4@PPy with a content of 40 wt % mixed in paraffin wax achieved a minimum reflection loss (RL) value of −60.76 dB and an effective absorption bandwidth (RL < −10 dB) of 6.9 GHz at a corresponding thickness of 2.15 mm. This indicates that the nanocomposite’s microwave absorption rate can exceed 99%, featuring a wider absorption bandwidth and a smaller thickness, making it an excellent wave-absorbing material. The superior impedance matching, larger attenuation coefficient, and dielectric-magnetic loss coupling effect of the wave absorber, along with the presence of multiple polarization phenomena within the material, collectively enhance the wave absorption effect. By the CST electromagnetic simulation, it was found that the simulation fitting of ε and μ closely matches the experimental results. This demonstrates that the nanocomposites possess strong microwave-absorbing capabilities, making them viable as new and efficient absorber materials. In addition, we evaluated the corrosion protection properties of the material, and the results demonstrated that it possesses significant corrosion resistance. This study confirms that (Mn0.2Co0.2Ni0.2Fe0.2Cu0.2)3O4@PPy can serve as a multifunctional nanocomposite material effective for both wave absorption and corrosion resistance across various applications and fields.
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高影响因子
MATERIALS LETTERS
·
2026
·
IF 2.6
Ziqi Xu,Yuanbang Zhao,Ruoyu Wang,Haitao Ma,Yunpeng Wang,Hanying Wang
Copper-based materials are attractive for non-enzymatic glucose sensing due to their high activity and low cost. However, conventional powder-based electrodes often suffer from high interfacial resistance and limited active sites. Herein, we develop a facile strategy combining electrodeposition and anodization to directly fabricate self-supporting porous Cu₂O electrodes on copper foil. This binder-free electrode exhibits outstanding electrocatalytic performance, achieving a sensitivity of 946.19 μA·mM −1 ·cm −2 and a detection limit of 1.01 μM. Notably, it shows an exceptionally wide three-stage linear range (0.02–5.71 mM), covering physiological glucose levels in tears, saliva, interstitial fluid, and blood. The sensor also demonstrates excellent anti-interference ability and reproducibility, offering a promising approach for practical glucose detection.
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Nanoscale
·
2026
·
IF 5.2
Tingting Cai,Shuangshuang Zhao,Qin Fang,Huixin Chen,Xiuli Jia,DONGXU YU
Vanadium (III) oxide (V2O3) has emerged as a promising cathode material for aqueous zinc-ion batteries owing to high theoretical capacity based on reversible two-electron redox chemistry. However, the cycling stability and reaction kinetics are highly sensitive to its microstructural characteristics, which remain insufficiently understood. Here, we report a facile and scalable synthesis of V2O3 via combining oil-bath reaction and controlled calcination process, enabling precise regulation of particle morphology and microstructure through calcination time. Systematic microstructural evolution is correlated with Zinc-ion storage behavior, revealing that optimized architectures effectively promote ion transport kinetics and structural stability. Coupled with a high-concentration water-in-salt electrolyte to suppress parasitic reactions, the optimized V2O3 cathode delivers a high specific capacity of 453.8 mA h g -1 at 0.05 A g -1 , exceptional rate capability with 180 mA h g -1 retained at 10 A g -1 , and prolonged cycling stability of 210 mAh g -1 after 1000 cycles at 1 A g -1 . This work elucidates the underlying structure-property relationship governed by microstructure but also provides valuable insights into the design of highperformance cathode materials for advanced energy storage systems.
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PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Liu Chen,Yutong Guo,Rantao Dong,Wenjing Song,Ling Huang,Weiping Fang,Weikun Lai
The competitive adsorption and activation of H 2 and NH 3 molecules presents a fundamental challenge in catalytic reductive amination for sustainable amine synthesis. In this study, we address this issue by constructing a Ni/NbW 0.3 catalyst featuring a W-O-Nb composite oxide support designed to selectively enhance NH 3 adsorption and activation. Comprehensive characterization confirms that W doping creates a unique NbW x O (5/2+3x) structure with abundant W-O-Nb bridges, which generates strong Brønsted acid sites. These sites significantly enhance NH 3 protonation, thereby selectively promoting the rate-determining hydroammonolysis step by enhancing nucleophilic addition on the Schiff base intermediate. Hence, the Ni/NbW 0.3 catalyst delivers 99.9% yield of furfurylamine from the reductive amination of furfural, with a formation rate of 0.025 mol·g⁻ 1 ·h⁻ 1 under mild conditions (60 °C, 3 MPa H 2 , 0.4 MPa NH 3 ). Kinetic analyses reveal that the W-O-Nb structure substantially reduces both the activation energy (26.9 kJ·mol⁻ 1 ) and NH 3 reaction order (0.58), while poisoning experiments verify the essential role of Brønsted acid sites. The catalyst also demonstrates broad substrate adaptability and excellent recyclability. This work provides fundamental insights into the relationship between acid site engineering and reductive amination kinetics, establishing the W-O-Nb heterostructure design as an effective strategy for developing advanced amination catalysts.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Jiawei Wang,Jiacheng Li,Fumin Wang,Xubin Zhang,Shuai Liu,Shuai Niu,Liang Chen,Xu Wu
Stabilizing the Cu δ+ (1 < δ < 2) valence state during CO 2 reduction reaction (CO 2 RR) process is essential to enhance the C-C coupling and further promote the conversion of CO 2 into value-added C 2+ products. Herein, we propose a new strategy to stabilize the Cu δ+ under the synergistic effect of 4f orbital and oxygen vacancies (O v ) through the construction of Ce doped CuO with enriched O v via symbiotic strategy (CuCeO-O v ). Theoretical calculations and experimental results show the derived gradient orbital coupling O v -[Ce 4f-O 2p-Cu 3d] unit with Ce 4f as electron buffer as well as O v as electron supply station can facilitate the electron itinerancy during CO 2 RR process, which is beneficial to reinforce the Cu-O covalency and inhibit peroxidation of Cu δ+ , thus endowing CuCeO-O v with a highly active (Faradaic efficiency of C 2 H 4 reaches 51% at −1.3 V vs. RHE) and stable bidirectional self-regulating capability (the current density and FE of C 2 H 4 show virtually no attenuation even after 13 h) simultaneously. This work not only gives a profound insight to the synergistic effect of dopants and O v in metal oxides but also provides new guidance to structural design of high-performance insert materials.
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高影响因子
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
·
2026
·
IF 2.5
Sicheng Fu,Chunju Yang,Zhiping Liang,Lin Zhong,Shufeng Ji,Yuanxiang Wang,Junjian Wang,Zhanfang Kang,Junguo Bu,Hong Wang
Metastasis is the leading cause of treatment failure and poor prognosis in triple-negative breast cancer (TNBC), underscoring the urgent need for effective therapeutic strategies. In this study, we show that O-GlcNAcylation catalyzed by O-GlcNAc transferase (OGT) increases NSD2 stability and thereby promotes TNBC metastasis. Mechanistically, OGT directly interacts with NSD2 and facilitates its O-GlcNAcylation, which impedes ubiquitin-mediated degradation and enhances NSD2 protein stability. OGT knockdown reduces NSD2 protein levels, downregulates extracellular matrix (ECM)-related signaling pathways, decreases collagen production and cell–matrix adhesion, and ultimately inhibits TNBC cell invasion and tumor metastasis. Importantly, disruption of the OGT–NSD2 axis markedly suppresses metastasis in TNBC xenograft models. Together, these findings reveal a novel mechanism by which OGT drives tumor metastasis through modulation of NSD2 O-GlcNAcylation, and identify the OGT–NSD2 axis as a potential therapeutic target for advanced TNBC.
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PubMed
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2016
·
IF 1.112
Xiaolong Wang,Yonghong Liu,Hang Dong,Qiang Sun,Yang Shen,Renjie Ji
A three-step model of the transitional phase inversion (TPI) process for the formation of water-in-oil (W/O) emulsions is presented. Three types of emulsions exist in an emulsification process at different oil–water ratios and hydrophilic–lipophilic balance (HLB). A stable W/O emulsion was obtained using Sorbitan oleate (Span 80) and polyoxyethylenesorbitan monooleate (Tween 80) with a specified HLB and oil volume fraction. Oil was added into water, which contained the water-soluble surfactant, to dissolve the oil-soluble surfactant. This route allowed TPI to occur, and an interesting emulsification process was observed by varying the HLB, which corresponded to the change in the oil–water ratio. Two types of emulsions in the emulsification process were found: transition emulsion 1 (W/O/W high internal phase emulsion) and target emulsion 2 (W/O emulsion with low viscosity). This study describes the changes that occurred in the emulsification process.
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高影响因子
PLASMA SCIENCE & TECHNOLOGY
·
2022
·Vol. 24
·期 12
·124017
·
IF 1.842
Xinluo TIAN,Heping LI,Liyu ZHENG,Fangjian LI,Zhongyang ZHENG,Shengming YIN,Xinyun WANG,Youwei YAN
In this study, a Cr2O3 nanosheet (Cr2O3 NS) inserted Cr-Zr-O coating was developed as a hydrogen isotope permeation barrier. The Cr2O3 NSs, fabricated by rapid heat treatment, were amorphous with a thickness of only several nanometers. These Cr2O3 NSs were then incorporated into a Cr-Zr-O multi-metal oxide composite coating via a dip-coating method to form a coating. The effect of the Cr2O3 NS concentration on the morphology, microstructure and deuterium permeation resistance of the coating was studied. With the addition of 1.0 g l−1 Cr2O3 NSs, compared with the Cr-Zr-O coating without NSs, the permeation reduction factor of the resultant coating was enhanced from 249 °C to 575 °C at 500 °C. The coating, with a thickness of nearly 193 nm, achieved a comparable deuterium resistance that was above two orders of magnitude higher than the steel substrate. The results show that ceramic NSs can serve as effective fillers for enhancing the coating performance when functioning as a hydrogen isotope barrier.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Enhui Wu,Xiaoshan Feng,Yingbin Zheng,Daifeng Lin,Yongjin Luo,Yufeng You,Baoquan Huang,Qingrong Qian,Qinghua Chen
Mn–Co–O catalysts with different Mn/Co molar ratios were synthesized by means of a facile inverse coprecipitation strategy and applied for the oxidation of propane (C3H8). The XRD pattern of Co2Mn1Oδ (molar ratio of Mn:Co = 1:2) indicates a Co3O4 phase, and most Mn incorporates into Co3O4 lattice to form a solid solution. Minor distributed Mn species occur structure reforming, totally converting to a stable Co–Mn solid solution during oxidation process. Meanwhile, Co2Mn1Oδ features a porous core–shell morphology, the core and shell of which are made up of Co–Mn solid solution, giving rise to a high surface area. The optimized synergistic effect of manganese and cobalt improves low temperature reducibility and produces rich surface active Co3+ species and surface-absorbed oxygen over Co2Mn1Oδ. As a result, it exhibits a prominent excellent catalytic activity, and delivers good thermal stability in the presence of 5 vol % H2O and 5 vol % CO2. In situ DRIFTs analysis displays the reaction path of C3H8 over Co2Mn1Oδ, where dominate intermediate species formate are easily decomposed into CO2. The synthesized porous core–shell Mn–Co–O can be a promising candidate replacing non-noble catalysts toward C3H8 oxidation at low temperature.
研究领域:
催化化学
·
环境化学
·
材料科学
·
多相催化
·
能源与环境科学
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Feng Wang,Chao Li,Haohao Wang,Lu Yu,Fuming Zhang,Robert J. Linhardt
Natural amino acid polymers have been wide-used as bio-compatible emulsion stabilizers . In this study, Amphiphilic O(Phe- r -Glu)s were synthesized through the papain-catalyzed random polymerization of L -phenylalanine and L -glutamate with the major degree of polymerization value of 6–7. The polymerization yield was increased by more than 35 % using choline to reduce the energy barrier for the amino substrates to form the tetrahedral intermediate with the catalytic triad. The squalene/water emulsions stabilized by O(Phe- r -Glu) nanoparticles were pH-insensitive at pH 1–12. The investigation of mechanism found the combined effects of steric hindrance , electrostatic repulsion and the viscosity of the emulsion contributed to the stability of the emulsion droplets. Under acidic condition, the layers of O(Pho- r -Glu)s particle aggregates formed around the emulsion droplets and the higher viscosity of emulsion mainly contributed to the stability of emulsions . At basic condition, the strong electrostatic repulsion between emulsion droplets covered by the negatively charged O(Pho- r -Glu) particles and the steric hindrance contributed mainly to the prevention of the coalescence of emulsion droplets. The application of enzymatically synthesized amphiphilic peptides in emulsion, along with tunable performance through the polymerization of amino substrates, is in line with the sustainable development requirements in fields such as pharmaceuticals, food and cosmetics.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yuanxing Ning,Minghui Yao,Yuxing Li,Guangchun Song,Zhiming Liu,Qingping Li,Haiyuan Yao,Wuchang Wang
During the production and transportation of deep-water oil and gas, the low-temperature and high-pressure operating environment might induce hydrate formation and eventual blockage, which poses a serious threat to the flow assurance. Furthermore, the formation, aggregation and deposition characteristics of hydrate would become more complicated in the presence of asphaltene. Consequently, clarifying the effect of asphaltene on hydrate nucleation and growing process plays an important role in the safety production and flow assurance of deep-water oil and gas field. The kinetic characterizations of hydrate nucleation and growth in W/O systems containing asphaltene were investigated via experimental research, molecular dynamics simulations and mathematical modeling. Results revealed that the hydrate nucleation induction time increased with the increase of asphaltene content. The inhibition of hydrate nucleation by asphaltene in high-pressure (5 MPa) experiments was more pronounced than that in low-pressure (3 MPa). On the other hand, asphaltene restrained hydrate formation and the total gas consumption decreased with the increase of asphaltene content. The dynamic adsorption process of asphaltene at oil–water interface and the evolution of the surface coverage with time were elucidated by jointly solving the Ward-Tordai and Langmuir equation. Combined with the above aspects, the induction time model containing asphaltene was developed, which could provide a new perspective and methodology for deep-water flow assurance
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Xinxin Yuan,Zhiling Huang,Jinhua Li,Yue Meng,Zhenhai Gu,Bo Xie,Zheming Ni,Shengjie Xia
The steric effect caused by the lattice mismatch between the two phases hinders the separation and transfer of photogenerated carriers, which is one of the important factors limiting the activity of heterojunction photocatalysts. In this paper, semi - coherent interface Cu2O/Cu7S4 heterojunction was successfully constructed based on the epitaxy growth method of anion exchange. The degradation of tetracycline by semi - coherent interface Cu 2 O/Cu 7 S 4 -30 heterojunction under simulated visible light reached 95.3 % at 60 min, which is a significant improvement compared with single-phase catalysts and ordinary heterojunction catalysts (Cu 2 O/Cu 7 S 4 -mix). The experimental characterization and theoretical calculations confirmed the existence of unique S-Cu-O chemical bonds in the semi - coherent interface Cu 2 O/Cu 7 S 4 heterojunction. On the basis of heterojunction energy band bending and the formation of built-in electric fields, the S-Cu-O bonds can act as a specific bridge to further facilitate the separation, transfer and delivery of photoelectrons and holes, which contributes to the generation of more oxidatively active species (mainly superoxide radicals and holes). In addition, based on experimental characterization and theoretical calculations, the intermediates, degradation pathways and photodegradation mechanisms of the degradation process have also been discussed in detail.
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高影响因子
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