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Journal of Materials Science & Technology 2013年第7期29卷 678-684页

作者： Jian Hou Guang Zhu Jingkun Xu Huajian Liu Science and Technology on Marine Corrosion and Protection Laboratory Luoyang Ship Material Research Institute Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science & Technology Normal University

Corrosion protection of the hull steel by the conventional epoxy paint containing a small amount of commercial poly（3,4-ethylenedioxythiophene）/poly（styrene sulfonate）（PEDOT/PSS）, which is one of the most popular and successful inherently conducting polymers as the corrosion inhibitor was studied. The corrosion behavior of the samples was investigated in seawater by electrochemical impedance spectroscopy and open circuit potential. Scanning electron microscopy was used to observe the surface morphology of the samples after corrosion. It was found that adding a small amount of PEDOT/PSS to the epoxy resin can significantly improve its corrosion protection.

关键词： anticorrosion Conducting polymer Electrochemical impedance spectroscopy (EIS) Coating

anticorrosion performance of the coating/metal system by electrochemical impedance spectra

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Journal of University of Science and Technology Beijing 2008年第4期15卷 457-460页

作者： Yinghuai Zhang Lining Xu Minxu Lu Pu Zhang School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

In order to investigate the anticorrosion performance of the organic coating/metal system, electrochemical impedance spectra （EIS） were measured in the 3.5wt% NaCl solution, the chemical component and the formation of corrosion products scale were analyzed by laser Raman microspectroscopy, and the pattern of the organic coating/metal system was observed by scanning electron microscopy （SEM）. The characteristics and the delamination process of the organic coating/metal system were investigated systematically, and the emphases were on the transportation of the corrosive medium and the changes of the coating/metal interface. The results show that the impedance decreases at the initial immersion, then increases at the middle-immersion, and again decreases at last, which is related to the corrosion products scale. The concentration of Cl in the coating, which destroys the corrosion products scale, increases with the immersion time.

关键词： organic coating electrochemical impedance spectra corrosion product scale anticorrosion

New branched benign compounds including double antibiotic scaffolds:synthesis,simulation and adsorption for anticorrosion effect on mild steel

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Frontiers of Chemical Science and Engineering 2023年第2期17卷 167-182页

作者： Yueting Shi Lingli Chen Shengtao Zhang Hongru Li Fang Gao College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China

In this study,two novel environmental benign double antibiotic norfloxacin or ciprofloxacin scaffolds included branched molecules were prepared by multi-step routes and purified by simple performance,which were used as the target compounds(TCs).Meanwhile,a single norfloxacin or ciprofloxacin skeleton based molecules were synthesized as the reference compounds(RCs).The molecular geometry optimization and material simulation computation revealed that TCs presented smaller HOMOLUMO energy gaps and larger binding energy levels on mild steel surface than *** chemical adsorption of TCs on steel surface was confirmed by X-ray photoelectron spectroscopy,which could be processed by TCs chelation with iron *** was shown that TCs could be self-adsorbed on steel surface,which was demonstrated by atomic force microscopy and scanning electron *** anticorrosion of the studied compounds for mild steel in HCl solution was investigated by electrochemistry *** results suggested that the anticorrosion efficiency could reach 95.86%(TC1)and 97.05%(TC2)at 0.050 mmol·L^(−1) based on electrochemical impedance spectroscopy,which were much better than RCs(RC1,69.23%;RC2,74.16%).The adsorption isotherms of TCs on steel were further fitted,and a deep insight on adsorption was discussed.

关键词： branched compounds floxacin scaffold mild steel anticorrosion environmentally benign

Doublely-doped Mg-Al-Ce-V_(2)O_(7)^(4-)LDH composite film on magnesium alloy AZ31 for anticorrosion

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Journal of Materials Science & Technology 2021年第5期64卷 66-72页

作者： Liang Wu Xingxing Ding Zhicheng Zheng Aitao Tang Gen Zhang Andrej Atrens Fusheng Pan College of Materials Science and Engineering Chongqing UniversityChongqing400044China National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing400044China School of Mechanical and Mining Engineering The University of QueenslandBrisbaneQld4072Australia

A doublely-doped layered double hydroxide(LDH)film was produced on an anodized magnesium alloy *** Ce-doped Mg-Al LDH film was prepared by in-situ hydrothermal treatment method,and the intercalation of vanadate was realized by ion-exchange *** structure,morphology and composition of as-prepared LDH film were investigated by X-ray diffractometer,field-emission scanning electronic microscope and energy dispersive *** indicated that a uniform and compact LDH film was formed and the intercalation of Ce^(3+)and vanadate would change the crystal structure of *** results of the potentiodynamic polarization,electrochemical impedance spectra,hydrogen evolution and corrosion weight loss tests showed the Ce^(3+)and vanadate anions significantly improve the impedance of LDH film,and the active double-doped LDH film could effectively protect the magnesium substrate from corrosion.

关键词： Magnesium alloy Doublely-doped LDH film Vanadate Cerium anticorrosion

Synthesis of Polyurethane/Poly(urea-formaldehyde) Double-shelled Microcapsules for Self-healing anticorrosion Coatings

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Chinese Journal of Polymer Science 2020年第1期38卷 45-52,I0006页

作者： Yan Song Kai-Feng Chen Jing-Jing Wang Yuan Liu Tao Qi Guo Liang Li National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Key Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing WO 190China Xiamen Advanced Materials Academy of Luoyang Ship Material Research Institute Xiamen 361101China Science and Technology on Marine Corrosion and Protection Laboratory Qingdao 266101China

One-component, catalyst-free self-healing coatings with double-shelled polymer microcapsules have drawn considerable attention due to wide applications. In this work, the synthesis parameters of double-shelled polymer microcapsules and the mechanism of the self-healing process were systematically investigated. Apart from the chemical structure of the microcapsule shell, the shell thickness, the microcapsule size,and the core fraction could affect the self-healing anticorrosion properties. The synthesis parameters were further optimized in terms of the agitation rate, p H, weight ratio of core to shell, and temperature. Under these conditions, the microcapsule shell consisting of a rough surface formed by poly(urea-formaldehyde) and a smooth inner wall by polyurethane was prepared. The size of the microcapsules and core fraction were calculated to be approximately 30 μm and 75%, respectively. The self-healing anticorrosion coating incorporating as-synthesized microcapsules exhibited corrosion resistance in artificially scratched areas, which was further characterized by electrochemical impedance spectroscopy.

关键词： Double-shelled Microcapsules anticorrosion Self-healing

Improvement of anticorrosion and adhesion to magnesium alloy by phosphate coating formed at room temperature

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Transactions of Nonferrous Metals Society of China 2010年第7期20卷 1356-1360页

作者：牛丽媛林继兴李勇史子木徐临超 Advanced Material Research and Development Centre Zhejiang Industry and Trade Polytechnic

A new surface protection process was developed to magnesium alloy against corrosion in aggressive ***,a phosphate coating was formed on rinsed magnesium ***,powder painting was carried out on the phosphated magnesium *** morphologies and phase compositions of the phosphate coating were investigated by X-ray diffraction(XRD) and scanning electron microscope(SEM) .The results show that the phosphate coatings formed in bath containing earth additives at room temperature have dense and fine *** phosphate coating provides excellent paint adhesion to the magnesium alloy. Salt spray tests indicate that the corrosion resistance of the phosphate coating plus paint could meet the demand of magnesium alloy automobile components in aggressive environments.

关键词： anticorrosion adhesion magnesium alloy paint phosphate coating

Charge storage coating based triboelectric nanogenerator and its applications in self-powered anticorrosion and antifouling

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Frontiers of Materials Science 2023年第1期17卷 163-173页

作者： Zhitao Zhang Yupeng Liu Min Feng Nannan Wang Changhe Du Shu Peng Yufei Guo Yongjian Liu Ying Liu Daoai Wang Institute of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Center of Materials Sciences and Opto-Electronic Technology University of Chinese Academy of SciencesBejing 100049China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China QingdaoCenter ofResourceChemistry and NewMaterials Qingdao266100China Institute of Sustainability for Chemicals Energy and Environment(ISCE2)A*STARSingapore 138634Singapore

As a novel energy-harvesting device,a triboelectric nanogenerator(TENG)can harvest almost all mechanical energy and transform it into electrical energy,but its output is *** the micro-nano structures of triboelectrode surfaces can improve their output efficiency,they lead to high costs and are not suitable for large-scale *** address this problem,we developed a novel TENG coating with charge-storage *** this study,we modified an acrylic resin,a friction material,with nano-BaTiO_(3) particles and gas phase *** charge-trapping ability of nanoparticles was used to improve the output of *** short-circuit current and the output voltage of coating-based TENGs featuring charge storage and electrification reached 15μA and 800 V,respectively,without decay for longtime *** this basis,self-powered anticorrosion and antifouling systems are designed to reduce the open circuit potential of A3 steel by 510 mV and reduce the adhesion rate of algae on the surface of metal *** study presents a high-output,stable,coating-based TENG with potential in practical applications for anticorrosion and antifouling.

关键词： triboelectric nanogenerator charge-trapping anticorrosion antifouling

Bio-inspired Superhydrophobic Self-healing Surfaces with Synergistic anticorrosion Performance

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Journal of Bionic Engineering 2020年第6期17卷 1196-1208页

作者： Xiaona Yang Limei Tian Wei Wang Yong Fan Jiyu Sun Jie Zhao Luquan Ren Key Laboratory of Bionic Engineering Minitry of EducationJilin UniversityChangchun 130022China College of Chemistry Jilin UniversiyChangchun 130022China

The past decade has witnessed significant efforts in addressing the global metallic corrosion challenge,with a focus on avoiding or mitigating huge economic losses incurred by corrosion and on the development of protective coatings on ***,a synergistic anticorrosion coating with both superhydrophobicity and self-healing properties was reported,through a facile replica molding method by mixing the polyvinylidene fluoride(PVDF)matrix with nano-sized SiO2 particles and 2-mercaptobenzothiazole(MBT)loaded halloysites(HNTs).The surface exhibits robust self-cleaning behavior under harsh conditions and high liquid repellence to withstand the osmosis of corrosive *** self-healing performance of the coating,due to the introduction of MBT-loaded HNTs,enhances the anticorrosion capability,which is still valid once the protective layer is *** polarization(PDP)and Electrochemical Impedance Spectroscopy(EIS)measurements demonstrate that the synergetic effects in anticorrosion performances significantly enhance the long-term corrosion protection of ***,this type of dual-action coating may find unique applications in metal corrosion resistance where both super-repellency and self-healing properties are desired.

关键词： superhydrophobic anticorrosion self-healing corrosion inhibitor

Analyze the Performance of Electroactive anticorrosion Coating of Medical Magnesium Alloy Using Deep Learning

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Computers, Materials & Continua 2024年第4期79卷 263-278页

作者： Yashan Feng Yafang Tian Yongxin Yang Yufang Zhang Haiwei Guo Jing’an Li Advanced Functional Materials Laboratory Zhengzhou Railway Vocational and Technical CollegeZhengzhou450000China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450000China

Electroactive anticorrosion coatings are specialized surface treatments that prevent or minimize corrosion. Thestudy employs strategic thermodynamic equilibriumcalculations to pioneer a novel factor in corrosion protection.A first-time proposal, the total acidity (TA) potential of the hydrogen (pH) concept significantly shapes medicalmagnesium alloys. These coatings are meticulously designed for robust corrosion resistance, blending theoreticalinsights and practical applications to enhance our grasp of corrosion prevention mechanisms and establisha systematic approach to coating design. The groundbreaking significance of this study lies in its innovativeintegration of the TA/pH concept,which encompasses the TA/pH ratio of the chemical environment. This approachsurpasses convention by acknowledging the intricate interplay between the acidity and pH levels within thecoating formulation, thereby optimizing metal-phosphate-based conversion coatings and transforming corrosionmitigation strategies. To authenticate the TA/pH concept, the study comprehensively compares its findings withexisting research, rigorously validating the theoretical framework and reinforcing the correlates among TA/pHvalues and observed corrosion resistance in the coatings. The influence of mutations that occur naturally inthe detergent solution on persistent phosphorus changes is shown by empirical confirmation, which improvescorrosion resistance. This realization advances the field ofmaterials and the field’s knowledge of coated generation,particularly anticorrosion converter layers.

关键词： Medical magnesium alloys hydrogen gas anticorrosion total acidity potential of the hydrogen(pH)

Improved anticorrosion performance of mixed valence Mnmodified ZnO dilute magnetic solid solution with multilevel selfassembled network structure

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Nano Research 2022年第7期15卷 6590-6600页

作者： Yi-Xiang Chen Dan Zhou Xiao-Jiao Guo Xiu Yang Si-Rui Zhao Yi Lu Jin-Ku Liu Key Laboratory for Advanced Materials School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Material Corrosion and Protection Key Laboratory of Sichuan ProvinceZigong 643000China

The design and performance prediction of efficient anticorrosion materials is a work full of value,novelty,and *** this work,from the perspective of nanostructure and composition,ZnO-based dilute magnetic solid solution(DMSs)with hydrophobic micronano network structure was synthesized through the self-induced effect of raw materials,the impact-resistant network structure,complex micro-channels,and densely nested layers resisted electrolyte ***,the doping of mixed valence Mn element endowed the solid solution with dilute magnetic properties,so the Lorentz force from micromagnetic field changed the movement path of electrons produced by the anode reaction to improve the corrosion inhibition ability of the protective *** the synergy of morphology and magnetism,the corrosion resistance of the DMSs materials was 555.4%and 173.8%higher than that of epoxy resin and ZnO shielding layer,***,a valuable phenomenon was found that the photocatalytic property of DMSs materials was positively correlated with their corrosive *** conclusion,this research provided a novel design idea for new high-efficiency anticorrosion materials.

关键词： Mn-modified ZnO dilute magnetic solid solution network nanostructure anticorrosion functional nanomaterials