SYNTHETIC METALS
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2024
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IF 4
Jieming Dong,Junyao Li,Laidi Xu,Hongyu Zhang,Yong Kong,Guojun Zheng
Au nanoparticles (AuNPs)-poly(o-phenylenediamine) (PoPD) nanocomposite was facilely prepared by a one-step method and used as the built-in redox probe for the decoration of a glassy carbon electrode (GCE). As the template molecules, diethylstilbestrol (DES) was immobilized on the AuNPs-PoPD/GCE surface by using electropolymerized o -phenylenediamine (oPD) as the imprinting layer, which was then eluted from the imprinting layer with the mixture of ethanol and water (v/v, 50 %). The resultant molecularly imprinted PoPD/AuNPs-PoPD/GCE (MI-PoPD/AuNPs-PoPD/GCE) was used for the electrochemical detection of DES in a wide range from 0.1 to 10 μM, and the limit of detection (LOD) was 0.062 μM (S/N = 3). The parameters for DES detection were also optimized in this work. The molecularly imprinted DES sensor showed high stability, selectivity and reproducibility, and it was successfully used for the detection of DES in the milk samples.
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高影响因子
Journal of Energy Storage
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2025
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IF 9.8
Yangyang Wang,Wenzheng Zhu,Guanyu Wang,Caiyun Chen,Wei Xu,Yanjiao Li,Lizhuang Chen,Yingying Chen,Hongxun Yang
Carbon-based materials have excellent conductivity, low cost, and environmental friendliness, making them the primary choice for negative electrode in sodium ion batteries (SIBs). Among them, hard-carbon and soft-carbon as amorphous carbon are considered to have potential as negative electrode for SIBs. However, soft-carbon exhibits a slow charging speed and poor low-temperature performance and hard-carbon behaves a low initial coulombic efficiency, resulting in a key obstacle to their extensive applications in SIBs. Herein, a new N/O co-doping soft-hard carbon nanofiber (PCNF) composite was prepared by electrospinning with heat treatment method, petroleum coke (PC) as soft-carbon and oxygen source and polyacrylonitrile (PAN) as hard-carbon and nitrogen source. The optimal PCNF-800 carbonization at 800 °C delivers an enhancement capacity of 296.1 mAh g −1 at 25 mA g −1 after 100 cycles with the capacity retention of 88.2 %. The excellent electrochemical property is ascribed to the co-doping of N/O in the carbon resulting in the large number of defects which could enhance Na + adsorption and transport, the appropriate interlayer spacing, the porous nanofiber mircostructure, and the synergistic effect between soft and hard carbon. Meanwhile, this study provides a possible new idea for the high-value utilization of petroleum coke.
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高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2024
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IF 5.7
Shiyu Liu,Naymul Karim,Ahmed K. Rashwan,Jiahong Xie,Wei Chen
Cyanidin-3-O-glucoside (C3G) is classified as an anthocyanin (ACN) and is recognized for its remarkable antioxidant properties. Yet, the inadequate physicochemical stability of C3G restricts its potential for various biological applications. Thus, in this study, carboxymethyl chitosan (CMC)-coated nanonutriosomes (NS) were synthesized as a novel carrier for encapsulating C3G (CMC-C3G-NS) to improve C3G stability. CMC-C3G-NS exhibited a diameter of less than 200 nm along with an encouraging encapsulation efficiency exceeding 90%. Notably, the formulated CMC-C3G-NS possessed better stability under various pH, ionic, and oxygen conditions, improved controlled release properties, and higher hepatocellular uptake than uncoated particles (C3G-NS), indicating a longer retention time of C3G in a physiological environment. Of utmost significance, CMC-C3G-NS demonstrated superior alleviating effects against palmitic acid (PA)-induced oxidative hepatic damage compared to C3G-NS. Our study provided promising nanocarriers with the potential to deliver hydrophilic ACNs and controlled release properties for PA-induced hepatotoxicity alleviation.
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PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2024
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IF 5.8
Chufei Cheng,Ruixin Hao,Jiadong Hou,Fengnian Zhang,Fuhao Cheng,Ziqian Meng,Bei Ren,Yang Miao,Libiao Xin,Xiaomin Wang
In the thermal protection system of spacecraft, the bolts connecting the ceramic to the internal superalloy need to have low thermal conductivity and high strength . Two dense high entropy fluorite oxides (Zr 1/7 Hf 1/7 Ce 1/7 Y 2/7 La 2/7 )O 2-δ (ZHCYL) and (Zr 1/8 Hf 1/8 Ce 1/8 Y 1/4 La 1/4 Pr 1/8 )O 2-δ (ZHCYLP) were designed and synthesized by using the synergistic effect of plasma-assisted ball milling and spark plasma sintering(SPS). Through the synergistic effect of lattice distortion and oxygen vacancy guided by entropy regulation, ZHCYLP synthesized in this study has lower thermal conductivity(1.13 W·m −1 ·K −1 ), higher high temperature strength(192 MPa at 1000 °C) and high temperature phase stability up to 1600 °C than 8YSZ ceramics. The thermo-mechanical coupling finite element analysis results of high temperature bending test show that the variation trend of the maximum stress value of the sample is consistent with the experimental results. This shows that the mechanical and thermal properties of high entropy oxides can predict the variation trend of the maximum stress value in high temperature bending tests. It opens up a new way for designing and synthesizing high entropy oxide materials with low thermal conductivity and high strength which can be applied in the field of heat protection and load bearing.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Hao Wu,Peng-rui Du,Xiao-ran Miao,Rui-quan Hou,Sheng-nan Li,Muhammad Zeeshan,Jin-cheng Liu,Su-qing Huang,Dong-mei Cheng,Han-hong Xu,Zhi-xiang Zhang
Water stress, a significant abiotic stressor, significantly hampers crop growth and yield, posing threat to food security. Despite the promising potential of nanoparticles (NPs) in enhancing plant stress tolerance, the precise mechanisms underlying the alleviation of water stress using O -Carboxymethyl chitosan nanoparticles ( O -CMC-NPs) in maize remain elusive. In this study, we synthesized O -CMC-NPs and delved into their capacity to mitigate water stress (waterlogging and drought) in maize seedlings. Structural characterization revealed spherical O -CMC-NPs with a size of approximately 200 nm. These NPs accumulated near the seed embryo and root tip, resulting in a substantial increase in fresh and dry weights. The application of O -CMC-NPs to water-stressed maize seedlings remarkedly elevated the chlorophyll content and activity of various antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and polyphenol oxidase (PPO). The malondialdehyde (MDA) content was significantly reduced compared to the untreated control. Additionally, the expression of stress-responsive genes, such as ZmSOD , ZmCAT, ZmPOD , ZmTIFY , ZmACO , ZmPYL2 , ZmNF-YC12, and ZmEREB180 , were significantly upregulated in the O -CMC-NPs treated seedlings. These findings unveil the novel role of O -CMC-NPs in enhancing plant stress tolerance, suggesting their potential application in safeguarding maize seedlings under water stress conditions and facilitating the recovery from oxidative damage.
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PubMed
高影响因子
Journal of the American Chemical Society
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2024
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IF 14.4
Liu Lin,Yunming Xu,Yiting Han,Ruikun Xu,Tongyue Wang,Zemin Sun,Zhenhua Yan
A deep understanding of the mechanism for the spin-magnetic effect on O–H cleavage is crucial for the development of new catalysts for water oxidation. Herein, we designed and synthesized the crystalline Fe-DABDT and Co-DABDT (DABDT = 2,5-diaminobenzene-1,4-dithiol) and optimized an effective magnetic moment to explore the role of the spin-magnetic effect in the regulation of water oxidation activity. It can be found that the OER activity of the catalyst is positively correlated with its effective magnetic moment. Under the external magnetic field, Fe-DABDT with more spin single electrons has a stronger spin-magnetic response to water oxidation than Fe/Co-DABDT and Co-DABDT. The increase in OER current of Fe-DABDT is nearly 2 times higher than that of Co-DABDT. Experimental and density functional theory studies show that magnetized Fe sites could realize nucleophilic reaction, accelerate the polarization of electron spin states, and promote the polar decomposition of O–H and the formation of the O–O bond. This study provides mechanistic insight into the spin-magnetic effect of oxygen evolution reaction and further understanding of the spin origin of catalytic activity, which is expected to improve the energy efficiency of hydrogen production.
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PubMed
高影响因子
Food Bioscience
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2025
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IF 5.9
Wenhui Wang,Heera Jayan,Usman Majeed,Xiaobo Zou,Qin Hu,Zhiming Guo
The misuse of additives is a major problem for global food safety, and of particular concern is Auramine O (AO). Although the analysis of AO by fluorescent carbon dots (CDs) has been extensively explored, the development of effective sensitivity enhancement and portable detection solutions based on CDs remains a significant challenge. Herein, we developed a dual-signal ratiometric fluorescent probe (RFP) integrated with fluorescent nanopaper and smartphone application, which has been used to achieve portable visualization and quantitative detection of AO in food and drug samples. The specific response analysis model (RFP) for AO detection was constructed using fluorescence resonance energy transfer and electrostatic attraction between B-CDs and O-CDs. Within a concentration range of 0.0–10.0 μM, achieving a detection limit as low as 12.3 nM. Furthermore, a laboratory device that incorporates portable fluorescent nanopaper into a smartphone was developed to record the color information response ratio (R/B) in combination with the ColorColl application, enabling visual quantitative measurement of AO. This is powerful construction of RFP, which avoids time-consuming synthesis and complex modification. It directly demonstrates the superiority of proportional fluorescence detection over single wavelength detection. This work provides a referable perspective for preliminary monitoring and rapid on-site detection of harmful factors such as AO in food and drug samples.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
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IF 4.1
Zihang Feng,Zhe Zhang,Xiaoxuan Zhang,Jinsheng Li,Xuefei Lei,Xuanwen Liu
The oxygen evolution reaction (OER)is crucial for the development of energy storage technologies such as water splitting for hydrogen production and metal-air batteries; therefore, developing efficient electrocatalysts is key to advancing OER. NiFe₂O₄, as a typical spinel-structured transition metal oxide, features nickel ions Ni 2+ preferentially occupying tetrahedral sites and iron ions Fe 3+ occupying octahedral sites within its crystal lattice. This unique dual-metal site distribution significantly optimizes the adsorption energy of oxygen intermediates through Ni Fe electronic synergy, overcoming the inherent activity limitations of single-metal oxides. Simultaneously, its high electrical conductivity and robust stability in alkaline environments make it an ideal alternative to precious metal catalysts. However, its intrinsic activity remains constrained by the sluggish kinetics of the conventional adsorbate evolution mechanism (AEM) and insufficient exposure of surface active sites. To address this, this study focuses on a breakthrough modification of nickel ferrite NiFe₂O₄: employing a phosphorus doping strategy, the reaction mechanism is successfully transformed from the AEM to the lattice oxygen oxidation mechanism (LOM) during the heating process, with optimization of heating time and temperature parameters. The optimized phosphorus-doped nickel ferrite NFO − P achieves a low overpotential of 229 mV and a Tafel slope of 75.1 mV dec −1 at a current density of 10 mA cm −2 —its performance significantly surpasses that of pristine NiFe₂O₄ and approaches the level of precious metal IrO₂. This work concurrently reveals that phosphorus doping overcomes the activity limitations of the traditional AEM pathway by weakening metal‑oxygen bonds and activating lattice oxygen, thereby providing a reference for “AEM → LOM” mechanism regulation in transition metal oxide catalysts.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Yawei Shi,Yumei Xing,Keyan Liu,Yan Wang,Ya Sun,Zonglin Pan,Guanghui Ding
Dyes and oil substances are two common pollutants in wastewater, and it is highly expected to remove them simultaneously. In this study, MgFe 2 O 4 was synthesized by co-precipitation and then loaded onto polyvinylidene fluoride (PVDF) membrane to fabricate a MgFe 2 O 4 -PVDF composite membrane, which was successfully employed for concurrent dye degradation through peroxymonosulfate activation and separation of oil-in-water emulsions through one-step single-pass filtration. Under optimum conditions, both Rhodamine B (RhB) and hexane could be efficiently removed by 99.21 % and 99.89 % respectively. The effects of pH, inorganic ions and humic acid were studied, and the system showed wide applicability and good reusability. The reaction mechanism for RhB degradation was proposed based on quenching tests, open circuit potential test, galvanic oxidation process and X-ray photoelectron spectroscopy. The degradation pathway of RhB was proposed according to density function theory calculations for both RhB and its deprotonated counterpart deH-RhB as well as LC-MS analysis, and toxicity evaluation was also performed. The MgFe 2 O 4 -PVDF/PMS system may offer a possible solution for the efficient remediation of complex wastewaters.
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高影响因子
Journal of Water Process Engineering
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2025
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IF 6.7
Yaoyu Yan,Shuchen Sun,Jing Wei,A. Shubo,Faxin Xiao,Ganfeng Tu
Electrolytic manganese residue (EMR), a hazardous solid waste from electrolytic manganese metal (EMM) production, poses serious environmental risks due to its complex mineralogy and heavy metal mobility. However, it also holds potential as a secondary resource. We establish an end-to-end waste-to-materials flowsheet—sulfuric-acid curing → water leaching → impurity removal → one-step conversion—that selectively recovers Mn from EMR and upgrades it to phase-pure, high-value Mn₃O₄ nanomaterials. The effects of curing temperature and acid dosage on the leaching behaviors of Mn, Fe, Al, and Si were systematically investigated. At 240 °C and an acid dosage of 2.5 times the stoichiometric requirement, Mn leaching efficiency reached 95.35 %, while Si leaching remained below 50 % due to silicate encapsulation and gelation. Kinetic modeling using the shrinking core model revealed that Mn dissolution was primarily controlled by product-layer diffusion, with an apparent activation energy of 14–18 kJ·mol −1 . FTIR, XRD, SEM–EDS, and BET analyses showed that acid curing disrupted the dense silicate matrix and increased surface area from 9.4 to 55.6 m 2 ·g −1 . Mn 2+ in the purified leachate was directly precipitated and oxidized using an NH₃·H₂O–H₂O₂–EDTA system, producing uniformly sized Mn₃O₄ nanoparticles. Rather than a stand-alone synthesis, the impurity-tolerant process with defined operating windows is the core contribution, with the Mn₃O₄ product validating this waste-to-value pathway. This integrated route offers a scalable framework for hazardous-waste valorization while clarifying sulfuric-acid-curing transformation and leaching kinetics, advancing sustainable metal recovery.
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高影响因子
Journal of Materials Chemistry C
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2025
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IF 5.1
Kai Xu,Pei Liu,Yinxu Ni,Qingqing Gao,Jin Chen,Shuai Yin,Zixuan Ding,Guohui Tang,Changtian Zhu,Fenghua Liu
Electromagnetic (EM) pollution has emerged as a pressing concern, driving the demand for high-performance microwave absorbing materials. In this work, attapulgite (ATP) was employed as a natural, porous scaffold for the in situ integration of amorphous TiO2, Fe3O4, and polyaniline (PANI), constructing a multifunctional composite with tailored dielectric and magnetic properties. The TiO2 and PANI coatings not only induced strong interfacial and conduction polarization but also formed a continuous 3D conductive network, enabling efficient energy dissipation. Benefiting from the magneto-electric synergy among PANI, TiO2, and Fe3O4, the composite exhibited multiple loss mechanisms and excellent impedance matching. As a result, a minimum reflection loss of -56.24 dB was achieved at 11.63 GHz (2.9 mm thickness), with an ultra-wide effective absorption bandwidth of 8.1 GHz. More importantly, by integrating 3D printing with metamaterial-inspired design, the absorption range was successfully extended into the low-frequency region (4–6 GHz), while simultaneously enhancing structural integrity and corrosion resistance. This study offers a scalable strategy for designing lightweight, corrosion-resistant microwave absorbers by combining hierarchical conductive frameworks with multifunctional components, opening new avenues for next-generation EM shielding and stealth technologies.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
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IF 4.1
Yan Ma,Peng Zeng,Yan Ma,Xiaomei Yang
Supercapacitors have been extensively studied for their excellent power density and cycle life, but they are limited by low energy density. This study successfully prepared nitrogen/oxygen/boron (N/O/B) co-doped phenolic resin-based porous carbon materials (NBC) through a sol-gel method combined with high-temperature carbonization and activation processes, and systematically investigated their electrochemical performance in supercapacitors. By adjusting the amount of boric acid and the carbonization temperature, the pore structure and heteroatom doping levels of the materials were optimized. Experimental results demonstrate that when the carbonization temperature is 700 °C and the mass ratio of L-tyrosine to boric acid is 1:1, the obtained sample NBC-700-1 exhibits a high specific surface area (1721 m 2 g −1 ), an abundant micro/mesoporous hierarchical structure, and uniform N/O/B doping (N content: 8.31 at.%, O content: 14.11 at.%, B content: 0.55 at.%). In a three-electrode system, NBC-700-1 (377 F g −1 ) exhibits superior specific capacitance, high rate performance (73% capacitance retention at 20 A g −1 ), and long cycle stability at 0.5 A g −1 in 6 M KOH electrolyte compared to NBC-600-1 (300 F g −1 ), NBC-700-0.5 (290 F g −1 ), NBC-700-2 (268 F g −1 ), and NBC-800-1 (351 F g −1 ). Furthermore, a symmetric supercapacitor assembled with Na 2 SO 4 gel electrolyte achieves an energy density of 29.9 Wh kg −1 at a power density of 550 W kg −1 , along with broad temperature adaptability (−25 to 75 °C) and remarkable flexibility (no significant performance degradation after 180° bending). Additionally, the design of a PVA-based gel electrolyte with wide pH applicability provides new insights for the application of such devices in complex environments.
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高影响因子
危险品化学品经营许可证（带存储）