MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Yuting Luan,Hao Wu,Xiaoyu Jiang,Siyuan Song,Li Li,Yongfu Lian
Accurate and rapid monitoring of carbendazim (CBZ) residues is crucial for ensuring food safety and environmental health. Herein, the electrochemical detection capability of superfine ZrO 2 nanoparticles (s-ZrO 2 NPs, ∼2.57 nm) for CBZ is thoroughly investigated for the first time. These s-ZrO 2 NPs are uniformly immobilized on the surface of arc-graphene (AG), which is favorable both to the complete exposure of active sites and to the mutual charge transport. The optimal s-ZrO 2 /AG/glassy carbon electrode (GCE) exhibits significantly enhanced electrochemical sensing performance toward CBZ, particularly in terms of a low detection limit (0.83 nM), outperforming many previously reported transition metal oxide-based or noble metal-based sensors. In addition, the fabricated sensor demonstrates a wide linear detection range (5 nM ∼ 10.4 μM), excellent stability (over 2000 cyclic voltammetry cycles), and remarkable reproducibility (over 30 days). Moreover, it also effectively quantifies CBZ in simulated real environments. Density functional theory (DFT) calculations reveal that electrons spontaneously transfer from s-ZrO 2 to AG in the hybrid structure, which enables s-ZrO 2 to rapidly transfer the electrons generated during the two-electron oxidation process of CBZ, thereby achieving efficient detection.
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DOI
高影响因子
Coatings
·
2020
·Vol. 10
·期 2
·128
·
IF 2.436
Qingjun Zhu,Binbin Zhang,Xia Zhao,Binbin Wang
Given the corrosion tendency of the natural oxide film of aluminum alloys, micro arc oxidation (MAO) treatment is used as an efficient and economic method to enhance the corrosion resistance. However, irregular voids, pores, and micro cracks are easily formed during the MAO process, which are harmful to the anti-corrosion property of MAO coatings. In this paper, binary additives of electrolytes, including (NaPO3)6and H3BO3, were used to obtain MAO coatings with improved thickness and compact microstructures on 6061 aluminum alloys. The as-prepared coatings were investigated using a thickness meter, scanning electron microscope (SEM), X-ray diffractometer (XRD), and electrochemical impedance spectroscope (EIS). The results showed that the coordinated influence of the binary additives could change the discharge behaviors and micro morphologies of the MAO coatings compared to the base silicate electrolyte. A thicker and stronger MAO coating could be achieved, which was mainly composed of Al2O3phases. The EIS tests revealed that the corrosion current density of the obtained optimal MAO coating decreased by three orders of magnitude from 1.209 × 10−6A·cm−2to 2.981 × 10−9A·cm−2. We believe that the binary additive-enhanced MAO coatings could provide a promising anti-corrosion solution in various applications.
研究领域:
材料科学
·
表面工程
·
腐蚀与防护
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高影响因子
JOURNAL OF THERMAL SPRAY TECHNOLOGY
·
2020
·Vol. 29
·期 8
·1991-2000
·
IF 2.522
Zhao Hang,Zhang Haijun,Chen Xiuyong,McDonald André,Li Hua
Thermal-sprayed aluminum (Al) coatings are widely used for corrosion protection in marine environments. The corrosive nature of seawater and the synergy with marine microbes make for aggressive service environments for Al coatings. In this study, Al coatings were deposited on 316L stainless steel (316L SS) substrates by using wire arc spraying. Chlorella vulgaris , a typical marine fouling algae, was used to investigate the effects of biofilm adhesion on the electrochemical behavior of wire arc-sprayed Al coatings in artificial seawater environment. Electrochemical measurements via dynamic potential polarization curves and electrochemical impedance spectroscopy were used to monitor the corrosion behavior after attachment of microbes on Al coatings and bare, uncoated 316L SS. Analysis of the corrosion products was conducted using scanning electron microscope and energy-dispersive spectrum. The results showed that the Chlorella vulgaris biofilm slowed the corrosion of the Al coatings. This suggested that Chlorella vulgaris biofilm was a critical contributing factor to the corrosion behavior of the Al coatings. Moreover, a mechanism was suggested to illustrate the corrosion behavior of Al coatings in the presence of Chlorella vulgaris .
研究领域:
材料科学
·
海洋生物学
·
电化学
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DOI
高影响因子
MATERIALS RESEARCH BULLETIN
·
2024
·
IF 5.3
Ningyuan Jiang,Yi Feng,Zhuhan Liu,Miao Yu,Gang Qian,Jingcheng Zhang,Zijue Zhou
La 2 Sn 2 O 7 has high melting point and excellent thermal stability, which improves the wettability between matrix and reinforcement. In this study, La 2 Sn 2 O 7 powder was synthesized by chemical coprecipitation method, and Ag-Ni-La 2 Sn 2 O 7 composites were prepared by vacuum hot-pressing sintering. The effect of La 2 Sn 2 O 7 content on the arc erosion behavior of Ag-Ni-La 2 Sn 2 O 7 composites was studied. The Ag-Ni-La 2 Sn 2 O 7 (85:12:3) composite has the lowest arc energy and the highest breakdown strength . With the increase of La 2 Sn 2 O 7 content, the defects on the cathode surface decrease and the erosion areas become flat. After arc erosion, the samples generate Ag 2 O, NiO, La 2 O 3 and SnO 2 . In this study, the mechanism of La 2 Sn 2 O 7 to improve the anti-arc erosion capability of composites is mainly enhancing the viscosity of the molten pool by the ``pinning'' action, consuming energy by the decomposition of La 2 Sn 2 O 7 , and the promotion of arc movement.
研究领域:
材料科学
·
电接触材料
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复合材料
·
电弧侵蚀
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DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2015
·
IF 2.947
Rong Tu,Nian Li,Qizhong Li,Song Zhang,Lianmeng Zhang,Takashi Goto
In order to improve the hardness and toughness simultaneously, B 4 C–HfB 2 –SiC ternary composites were synthesized by arc-melting using B 4 C, HfB 2 and β-SiC powders as raw materials. The ternary eutectic composition of 45B 4 C–15HfB 2 –40SiC (mol%) was first identified with a lamellar eutectic texture. HfB 2 about 500 nm in thickness and SiC about 700 nm in thickness were uniformly dispersed in B 4 C matrix of the eutectic composite, much smaller than raw powders. The Vickers hardness and fracture toughness of B 4 C–HfB 2 –SiC ternary eutectic were 35.7 GPa and 6.5 MPa m 1/2 at the eutectic composition, respectively.
研究领域:
材料科学
·
复合材料
·
陶瓷材料
·
高温材料
·
力学性能
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DOI
高影响因子
Journal of Functional Biomaterials
·
2026
·Vol. 17
·期 4
·181
·
IF 5.9
Yiming Yang,Rongpu Liu,Yuqi Zhou,Lingjun Yuan,Zhenxia Li,Qian Liao,Bing Fang
Titanium implants are widely used in orthopedic and dental fields but often face challenges such as insufficient osseointegration and peri-implant inflammation. While Strontium (Sr) possesses potent bioactive properties, achieving its controlled delivery at the implant-tissue interface remains technically challenging. To address this, we engineered a multidimensional composite coating by constructing a micro/nano-porous TiO2substrate via micro-arc oxidation (MAO), followed by polydopamine (PDA)-assisted Sr immobilization. This integrated architecture significantly enhanced surface hydrophilicity and facilitated high-content Sr loading with sustained release kinetics. Biological evaluations demonstrated that the PDA-mediated interface promoted superior initial adhesion and spreading of bone marrow mesenchymal stem cells (BMSCs), synergizing with released Sr2+to markedly upregulate core osteogenic markers (Runx2,ALP). Crucially, the functionalized surface actively optimized the immune microenvironment by inducing M1-to-M2 macrophage polarization and comprehensively suppressing RANKL-induced osteoclastogenesis via the downregulation of TRAP and DC-STAMP. By integrating these pro-osteogenic, anti-inflammatory, and anti-resorptive capabilities, this tri-functional system effectively rebalances the bone remodeling microenvironment. Consequently, it provides a robust, universally applicable strategy for enhancing the therapeutic efficacy of next-generation orthopedic and dental implants.
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DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Yuan Li,Xiang Feng,Shipeng Zhu,Yifen Xu,Jingshu Wu,Jidong Hu,Yunhua Yang,Jian He,Zhihai Feng,Hongbo Guo
Carbon-fiber-reinforced SiBCN (C f /SiBCN composites) have gained significant attention due to their exceptional high temperature stability and outstanding oxidation resistance, which can be applied in Thermal Protection System (TPS). In this study, arc jet wind tunnel testing, which can effectively simulate the actual atmospheric flight environment and the associated fluid-solid surface interactions, is applied to evaluate the ablation behavior C f /SiBCN composites. The heat flux density during testing is 1.2-1.6 MW·m -2 and the heating temperature ranges from 1200 °C to 2000 °C. After ablation, the surface was covered with an intact oxide layer composed of BN(C) and borosilicate glass. The linear and mass recession rates were as low as 0.268 × 10 -3 mm·s −1 and 1.422 × 10 -3 mg·mm −2 ·s −1 at 1900 °C, respectively. A detail study demonstrate that the oxide layer of ablated product consists of α/β-SiC crystallites embedded within turbostratic B-N-C layers. In order to explore the ablation mechanism, the ablation performance of C f /SiC and C f /SiBCN composites at 2000 °C were compared and investigated.
研究领域:
材料科学
·
航空航天工程
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复合材料
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高温材料
·
热防护系统
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DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Yan Liu,Qiwen Yong,Liang Wu,Gang Yu,Zhi-Hui Xie
This paper aims to overcome the adverse influence of intrinsic micropores and microcracks in the micro-arc oxidation (MAO) layer by creating a hydrophobic cerium-based conversion top layer through a vacuum-assisted post-treatment. The electrochemical results reveal that the corrosion current density ( j c ) and impedance modulus at the low-frequency region of the duplex protective coating system are significantly lower and higher than that of the bare magnesium alloy and MAO coating without modification. The unprecedentedly low j c and high impedance of the as-prepared coating are attributed to the notable improvement in hydrophobicity , sealing effect to micropores, and self-healing function of the outer cerium-based film.
研究领域:
材料科学
·
表面工程
·
腐蚀与防护
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产品关联
DOI
高影响因子
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
·
2024
·
IF 2.2
Tang Qin,Li Xiaoping,Liu Guangyin,Zhai Dajun,Shen Jun
Magnesium (Mg) and its alloys face challenges in clinical applications due to their high degradation rates and low antibacterial properties. To overcome these challenges, this study employed an electrolyte containing elements such as F, Ca, P, Si, Sr, and Ag to perform soft spark micro-arc oxidation (MAO) on ZrO 2 –AZ91D Mg alloy. The research encompassed analysis of the MAO process, characterization of the composite coating's phase composition and elemental valence states, measurement of the physicochemical properties of the coating, as well as evaluation of biological properties including cell adhesion, protein adsorption, cytotoxicity, and antibacterial activity. This study investigated the mechanisms underlying osteogenesis and antibacterial effects of co-doped coatings, and examined the influence of bioactive elements on the performance of MAO coatings. The results demonstrated that the co-doped F/Ca/Sr/Ag particle-containing MAO composite coating exhibited excellent wettability and corrosion resistance. Additionally, the coating displayed remarkable protein adsorption capacity, superior adhesion to MC3T3-E1 osteoblast cells, and excellent antibacterial efficacy against Staphylococcus aureus, all while showing negligible toxicity.
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DOI
高影响因子
JOURNAL OF THERMAL SPRAY TECHNOLOGY
·
2021
·Vol. 31
·期 1
·119-129
·
IF 2.757
Wen Jianxin,Song Ziheng,Chen Xiuyong,Li Hua
Biofouling has been persisting as a worldwide problem due to the difficulties in finding efficient environment-friendly antifouling coatings for long-term applications. Developing novel coatings with desired antifouling properties has been one of the research goals for surface coating community. Recently hydrogel coating was proposed to serve as antifouling layer, for it offers the advantages of the ease of incorporating green biocides, and resisting attachment of microorganisms by its soft surface. Yet poor adhesion of the hydrogel on steel surfaces is a big concern. In this study, porous matrix aluminum coatings were fabricated by cored wire arc spray, and the sizes of the pores in the aluminum (Al) coatings were controlled by altering the size of the cored powder of sodium chloride. Silicone hydrogel was further deposited on the porous coating. The hydrogel penetrated into the open pores of the porous Al coatings, and the porous Al structure significantly enhanced the adhesion of the hydrogel. In addition, hydrogel coating exhibited very encouraging antifouling properties.
研究领域:
材料科学
·
表面工程
·
生物医学工程
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产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2023
·
IF 11.1
Qing Yu,Tian-Ji Liu,Ya-Nan Zeng,Yi-Tong Wang,Jun-Guo Li,Yu-Ran Wang,Le-Le Kang,Rui Ji,Fu-Ping Wang,Xiao-Man Wang,Bao Liu,Shuang Cai,Zhen Fang
Electric furnace slag was highly productive and rich in elements, which can be used as a nutrient source for microalgae growth. The regulation of growth and lipid synthesis of Chlorella pyrenoidosa ( C. pyrenoidosa ) in electric arc furnace slag leaching solution with or without citric acid was investigated to develop efficient lipid production method with low cost. High lipid content of 45.89 wt% from C. pyrenoidosa with adding electric arc furnace slag leaching solution ≤40% into BG11 was obtained due to C. pyrenoidosa increasing lipid accumulation to resist oxidative stress caused by heavy metals in electric arc furnace slag (Ca of 5.13 mg/L, Fe of 0.05 mg/L, Mn of 0.12 mg/L and Cr of 0.01 mg/L). Exogenous citric acid can improve the ability of C. pyrenoidosa to resist heavy metal toxicity with high biomass content (0.44 g/L) achieved. The cooperation of multiple metal ions in electric arc furnace slag shortened the biomass accumulation stage and prolonged and speeded up the lipid synthesis stage of C. pyrenoidosa by modulating PEPC, ACC and ME activities . This study provided guidance for the industrialization of low-cost lipid-rich microalgae and metallurgical solid waste treatment .
研究领域:
环境科学
·
生物技术
·
微生物学
·
废物管理
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DOI
高影响因子
JOURNAL OF THERMAL SPRAY TECHNOLOGY
·
2020
·Vol. 29
·期 7
·1784-1791
·
IF 2.522
Wang Xiaoxia,Wang Xin,Huang Qun,Qin Jiahao,Suo Xinkun,McDonald André,Li Hua
Aluminium-polymethyl methacrylate-copper (Al-PMMA-Cu) composite coatings were developed using cored wire arc spraying. The bacteria Bacillus sp. was used to evaluate the antifouling performances of the coatings. The microstructures and antifouling mechanisms of the coatings were investigated and discussed. The results show that the composite coatings presented improved antifouling performances, and two antifouling mechanisms were explored. On the one hand, the Cu nano-particles were released to seawater due to corrosion of the Al components, converted to cupric ions, and killed the bacteria. Meanwhile, oxidation of Al was accelerated due to Cu-Al galvanic reaction, and the needle-like corrosion products were formed, which pierced the cell membranes and killed the bacteria. The effects of the PMMA on the electrochemical properties of the coatings were also evaluated. The results show that the sealing function of the PMMA components enhanced the corrosion resistance of the Al-PMMA-Cu coatings. This investigation shed light on one-step construction of antifouling and anticorrosion layers for marine applications.
研究领域:
材料科学
·
海洋涂层
·
防污技术
·
腐蚀科学
·
表面工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）