Corrosion Communications
·
2025
·
IF 9.5
Chao Yang,Tao Ying,Aihui Huang,Jian Huang,Pinghu Chen,Paul K. Chu,Xiaoqin Zeng
Corrosion of aluminum (Al) alloys during service limits many applications. Micro-arc oxidation (MAO) coatings can enhance corrosion resistance, but porous defects in the films undermine their effectiveness. Here, by mixing a phosphate electrolyte with soluble Zn and Ce salts, zinc phosphate and cerium phosphate co-doped MAO corrosion-resistant coating is prepared on Al alloy LY12. Zinc phosphate and cerium phosphate are incorporated in situ to form an amorphous encapsulated nanocrystalline structure. During long-term corrosion, Zn 2+ is released and deposited as corrosion products Zn(OH) 2 to cover weak corrosion micro-regions in the coating. Simultaneously, Ce 3+ released from MAO coating co-doped with zinc phosphate/cerium phosphate forms Zn(OH) 2 /Ce(OH) 3 due to the small solubility product K sp to further enhance corrosion resistance. Compared to pristine Al alloy, corrosion potential increases from -1.306 to -0.819 V SCE , and corrosion current density decreases by 4 orders of magnitude from 2.6 × 10 −6 to 2.5 × 10 −10 A·cm −2 . Co-doped MAO coating significantly enhances corrosion resistance of Al alloy LY12 and shows great potential for a wide range of applications.
研究领域:
材料科学
·
表面工程
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2024
·Vol. 14
·期 10
·1237
·
IF 2.9
Shucheng Qi,Xiang Liu,Lei Cheng,Jiyuan Zhu
This research presents the development of a surface treatment for AZ91D magnesium alloy that exhibits both superhydrophobic and anticorrosive properties. Initially, a zinc-based phosphate film was deposited on the magnesium alloy surface. Subsequently, a composite coating with superhydrophobic properties was produced by surface modification using a fluorosilane-ethanol solution. The composite coating’s microstructure, chemical composition, wettability, self-cleaning, and anti-corrosion properties were evaluated using scanning electron microscopy, a contact angle measurement instrument, and an electrochemical workstation. The results demonstrated that the main components of the composite coating were P, O, Zn, F, and C. The static contact angle reached 158°, providing superior self-cleaning and acid and alkali corrosion resistance. Additionally, the charge transfer resistance and coating resistance of the composite coating were significantly higher than those of the magnesium alloy substrate, effectively preventing corrosion and preserving the surface from fouling.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 22
·2208230
·
IF 19
Shengzhao Zhang,Minghui Ye,Yufei Zhang,Yongchao Tang,Xiaoqing Liu,Cheng Chao Li
Despite the merits of high specific capacity, low cost, and high safety, the practical application of aqueous Zn metal batteries (AZMBs) is plagued by the dendritic growth and corrosion reaction of Zn metal anodes. To solve these issues, a Zn 3 (PO 4 ) 2 ·4H 2 O protective layer is in-situ constructed on Zn foil (Zn@ZnPO) by a simple hydrothermal method, avoiding the traditional slurry-casting process. The insulating and conformable ZnPO layer improves the wettability of Zn@ZnPO and aqueous electrolyte via decreasing the contact angle to 11.7 o . Compared with bare Zn, the Zn@ZnPO possesses a lower desolvation activation energy of 35.25 kJ mol -1 , indicating that the ZnPO fasters the desolvation of hydrated Zn 2+ ions and thereby ameliorates their transport dynamics. Micro-morphology and structural characterization show that there are no dendrites forming on the post-cycling Zn@ZnPO anodes, and the interfacial ZnPO layer remains almost identical before and after cycles. It can be explained that the electrochemically stable ZnPO layer acts as an ionic modulator to enable the homogeneous distribution of Zn 2+ ions, inhibiting the growth of Zn dendrites. Benefiting from these advantages, the Zn@ZnPO based symmetric and full cells deliver highly reversible Zn plating/stripping behavior and long cycling lifespans.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Ruoyu Di,Ruiyue Hang,Huanming Chen,Liwei Yang,Yuyu Zhao,Xiaohong Yao,Ruiqiang Hang
Infections and loosening remain two significant challenges in the clinical application of titanium (Ti) implants. Zinc oxide (ZnO) nanostructured coatings possess remarkable antibacterial properties and osteogenesis potential, but their instability-induced physiological toxicity needs to be improved. In this work, ZnO/zinc phosphate (Zn 3 (PO 4 ) 2 ) composite micro/nano-scaled flower-like structural coatings were constructed on Ti implant surfaces by magnetron sputtering combined with two-step hydrothermal treatments to address these concerns. The results showed that the composite micro/nano-structures became larger with the increase of the concentration of the second hydrothermal precursor (dipotassium hydrogen phosphate), while the coatings became more hydrophilic. In addition, the composite coatings exhibited excellent antibacterial properties, mediated macrophage polarization towards anti-inflammatory and pro-healing M2 phenotype, and promoted osteogenic differentiation of bone marrow mesenchymal stem cells. This surface modification strategy, which utilizes the partial conversion of ZnO to Zn 3 (PO 4 ) 2 to balance the antibacterial and cell-modulating properties of Ti implants, holds great promise for clinical applications.
研究领域:
生物材料学
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表面工程
·
组织工程
·
免疫调控
·
骨科学
·
纳米医学
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转化医学
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 14
·5429
·
IF 4.6
Mao-Ling Luo,Hua Chen,Guo-Ying Chen,Shengpeng Wang,Yitao Wang,Feng-Qing Yang
A biomimetic mineralization method was used in the facile and rapid preparation of nanoflowers for immobilizing alcohol dehydrogenase (ADH). The method mainly uses ADH as an organic component and zinc phosphate as an inorganic component to prepare flower-like ADH/Zn3(PO4)2organic-inorganic hybrid nanoflowers (HNFs) with the high specific surface area through a self-assembly process. The synthesis conditions of the ADH HNFs were optimized and its morphology was characterized. Under the optimum enzymatic reaction conditions, the Michaelis-Menten constant (Km) of ADH HNFs (β-NAD+as substrate) was measured to be 3.54 mM, and the half-maximal inhibitory concentration (IC50) of the positive control ranitidine (0.2–0.8 mM) was determined to be 0.49 mM. Subsequently, the inhibitory activity of natural medicinePenthorum chinensePursh and nine small-molecule compounds on ADH was evaluated using ADH HNFs. The inhibition percentage of the aqueous extract ofP. chinenseis 57.9%. The vanillic acid, protocatechuic acid, gallic acid, and naringenin have obvious inhibitory effects on ADH, and their percentages of inhibition are 55.1%, 68.3%, 61.9%, and 75.5%, respectively. Moreover, molecular docking analysis was applied to explore the binding modes and sites of the four most active small-molecule compounds to ADH. The results of this study can broaden the application of immobilized enzymes through biomimetic mineralization, and provide a reference for the discovery of ADH inhibitors from natural products.Keywords:alcohol dehydrogenase;organic-inorganic hybrid nanoflowers;Penthorum chinensePursh;enzyme inhibitors
研究领域:
生物化学
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纳米技术
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药学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2019
·
IF 3.42
Youtong Wu,Shaoguo Wen,Kaiming Chen,Jihu Wang,Guangyu Wang,Kai Sun
Compared with solvent-based resins, waterborne resins still have defects such as insufficient anti-corrosion efficiency. In this paper, the sulfonated graphene/zinc phosphate composites were prepared as an anti-corrosion filler and doped into waterborne polyurethane resin. The morphology of composites is different from pure zinc phosphate. The optimal corrosion resistance can be obtained by adding 0.5 wt% sulfonated graphene/zinc phosphate fillers characterized by Potentiodynamic polarization curves and EIS analysis The corrosion current density ( i corr ) was 0.4252 μA/cm 2 and the charged transfer resistance (R ct ) was up to 10.937 × 10 3 Ω cm 2 , which show a good potential as anti-corrosive fillers in waterborne coatings system.
研究领域:
材料科学
·
高分子化学
·
表面工程
·
腐蚀与防护
·
涂层技术
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Ruohan Li,Jingyi Zhang,Xinqi Zhao,Mingda Huo,Xiaohong Sun,Chunming Zheng
Aqueous zinc-ion batteries (AZIBs) suffer from dendrite growth and side reactions, which severely limit their stability and commercialization. To address these issues, we developed a novel self-regulating hybrid interfacial layer composed of sodium alginate (SA) and in-situ formed zinc phosphate (ZP), which effectively regulates Zn 2+ flux and promotes uniform deposition. Specifically, SA coordinates with Zn 2+ through carboxyl groups to buffer local ion accumulation, while ZP improves ionic conductivity to facilitate rapid and uniform Zn 2+ transport. The synergistic interface mitigates interfacial ion concentration gradients and promotes homogeneous nucleation and lateral Zn growth, resulting in preferential (002)-oriented deposition and effective dendrite suppression. Therefore, the modified Zn anode demonstrates exceptional cycling stability, operating stably for >3000 h at 1 mA cm −2 and 1 mAh cm −2 , and maintains stable performance exceeding 3050 h at 5 mA cm −2 . This work proposes a scalable and eco-friendly interfacial strategy for stabilizing Zn anodes and highlights the potential of Zn 2+ flux modulation in advancing practical AZIBs.
✓ 已验证
产品关联
DOI
高影响因子
Lubrication Science
·
2025
·
IF 1.9
Xing'an Cao,Haixiang Huan,Linzhen Zhou
Among atmospheric contaminants, soot is known to cause severe wear of mechanical components and degrade lubricating oils; however, its impact on lubricity grease remains largely unexplored. This study investigates the interactions between carbon black (as a soot surrogate) and other lubricant additives, including molybdenum disulfide (MoS 2 ) and anti-wear additive zinc dialkyldithiophosphate (ZDDP). Additionally, the effects of individual and combined additions of MoS 2 and ZDDP on the tribological properties of soot-contaminated lithium grease (LG) were compared. The lubricity of LG decreased progressively with increasing soot concentration. Conversely, incorporating MoS 2 improved the lubricity of LG, with optimal performance observed at 0.5 wt%. The individual addition of MoS 2 to LG minimally mitigated the abrasive wear caused by soot; however, the inclusion of ZDDP T202 enhances the effectiveness of MoS 2 in reducing the friction and wear. MoS 2 and ZDDP participate in tribochemical reactions to form protective films during sliding. MoS 2 contributes by reducing friction, while ZDDP reacts to form protective films that enhance wear resistance. However, the combined addition of ZDDP and MoS 2 demonstrates limited effectiveness in fully mitigating the adverse effects of soot on grease lubrication. Consequently, exploring more efficient methods to prevent lubrication failure caused by soot.
研究领域:
机械工程
·
材料科学
·
摩擦学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
TRIBOLOGY INTERNATIONAL
·
2024
·
IF 6.1
Shuoshuo Chen,Shuguang Fan,Ningning Song,Guangbin Yang,Laigui Yu,Yujuan Zhang,Shengmao Zhang
Metal oxide nanoparticles as lubricant additives have attracted much attention, thanks to their excellent anti-wear ability and load-carrying capacity. Unfortunately, organic molybdenum, a small molecule auxiliary of zinc dialkyldithiophosphate (ZDDP) with high reactivity, exhibits poor load-bearing capacity. Therefore, molybdenum oxide nanoparticle (denoted as MONP) was surface-capped by dodecylamine (DDA) and maleic anhydride dodecyl ester (MADE) to obtain DDA/MADE-MONP, an organic-inorganic nanohybrid as a potential replacement of sulfur- and phosphorus-free commercial organic molybdenum additive (Organic-Mo). The as-prepared DDA/MADE-MONP nanohybrid was characterized by X-ray diffraction, transmission electron microscopy, and Fourier transform infrared spectroscopy; and its effect on the load-bearing capacity of an alkylated naphthalene base oil (AN30), as used alone and combined with ZDDP, was investigated. Results show that, whether used alone or combined with ZDDP, the as-prepared DDA/MADE-MONP has better load-bearing capacity than the commercial organic molybdenum additive. The reason lies in that DDA/MADE-MONP can release MoO 3 nanocores during the friction process to fill up the pits on the worn steel surface and form a dense protective tribofilm.
研究领域:
材料科学
·
润滑工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 137
·期 21
·48733
·
IF 2.188
Yuzheng Xia,Huan Cheng,Leijiao Duo,Dong Zhang,Xiaonong Chen,Shuxian Shi,Lei Lei
Photocathodic protection coatings have been widely applied in various areas such as ship and architectural protection, or chemical industry. In this work, a composite of titanium dioxide loaded with reduced graphene oxide (RGO/TiO 2 ) was prepared and used as filler on waterborne polyacrylate (PA) coating to reinforce the metal protection against corrosion. Compared with the current filler of zinc phosphate used for anticorrosive coating, the photoelectrochemical properties of RGO/TiO 2 -PA coating exhibit improved photocathodic protection under visible light illumination since RGO/TiO 2 composite has significant superiority in enhancing metal protection due to its dispersion, micropore blocking ability, and photoelectrochemical conversion performance. The mechanism of anticorrosion reinforcement of RGO/TiO 2 -PA coating was hypothesized that graphene provides an extrabarrier layer to obstruct corrosive in dark condition and photocathodic protection under lighting. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137 , 48733.
研究领域:
材料科学
·
化学工程
·
腐蚀科学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Zhenyu Hu,Hongfei Wang,Yao Li,Xiaolu Liu,Jing Tian,Xu Fei,Cong Wang,Longquan Xu,Sheng Cheng
Egg white protein is widely utilized in the food industry, particularly in aerated confectionery, owing to its excellent foaming properties. However, foam, as a highly unstable thermodynamic system, inevitably undergoes collapse, severely compromising the production quality of related food products. In this study, magnetic inorganic-organic hybrid biomimetic mineralized immobilized papain with zinc phosphate as the inorganic component were synthesized by self-assembly method, exhibiting a 300 % higher relative activity compared to free enzymes. The molecular weight distribution of hydrolyzed protein was precisely regulated by the space selective catalysis of immobilized papain, and the foaming properties of hydrolyzed protein were significantly improved. The foaming capability was increased by approximately 200 %, and the foam demonstrated exceptional stability, maintaining its volume unchanged for 3 h.
研究领域:
食品科学
·
蛋白质工程
·
酶催化
·
材料科学
·
食品化学
✓ 已验证
产品关联
DOI
高影响因子
Biomaterials Science
·
2023
·
IF 6.6
Limei Liu,Weisong Wu,Siqi Li,Li Ma,Yunting Liu,Xiaoli Wang,Yanjun Jiang
Orally administrating baicalein-decorated zinc phosphates (ZnBM) were engineered for mucosal barrier improvement and intestinal inflammation relief. ZnBM with a size of 1.78 µm comprised 5.58 wt% of baicalein and 13.17 wt% of Zn. The incorporation of baicalein endowed ZnBM with excellent radical scavenging activities. ZnBM exhibited good stability with negligible zinc re-lease in PBS solution for 2 days, and 32.82% of zinc could reach the gut. In addition, ZnBM polar-ized macrophages into anti-inflammatory M2 type and effectively scavenged intracellular ROS of LPS-treated RAW264.7. Meanwhile, ZnBM effectively scavenged intracellular ROS of PMA-induced Caco-2 cells and exerted a reparative effect on LPS-damaged Caco-2 monolayer, causing obvious improvement of barrier function. Reduced systemic exposure to FITC-dextran was observed to illustrate barrier restoration by ZnBM, which was achieved through upregula-tion of tight junction proteins expression. Notably, the commonly used clinical drug, 5-aminosalicylic acid was toxic to liver and kidney, and commercial ZnO caused death of mice during treatment. Apparently, the therapeutic effect of ZnBM was significantly better than that of baicalein alone in chronic colitis. Overall, ZnBM exhibited outstanding therapeutic efficacy and was expected to be used in the clinical treatment of colitis due to its effectiveness, biosecuri-ty, facile preparation, and easy storage.
研究领域:
药学
·
生物医学工程
·
炎症
·
胃肠病学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）