PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Chenkai Xu,Yujie Yuan,Valeryia Kasneryk,Maria Serdechnova,Carsten Blawert,Yuankun Wei,Dongmei Zeng,Mengke Wang,Dahai Gao,Hao Wang,Mikhail L. Zheludkevich,You Zhang
Corrosion protection of high-strength aluminum alloys remains a critical challenge, especially for applications in marine and aerospace environments. This work reports BIPT-6, a new cerium-based metal-organic framework designed for sustainable corrosion protection of AA2024 aluminum alloy. BIPT-6 contains both Ce(III) and Ce(IV) ions and is constructed with 2,5-furandicarboxylate (FDA 2− ), a biomass-derived ligand, through a simple one-pot solvothermal method. The structure and composition were verified by a series of advanced characterization methods. BIPT-6 crystallizes in a monoclinic system with space group P 2 1/ n . The protective ability of novel BIPT-6 was evaluated by electrochemical impedance spectroscopy (EIS). It demonstrated good corrosion inhibition efficiency for the AA2024 aluminum alloy samples immersed in 0.05 mol/L NaCl solution containing 5 × 10 −4 mol/L BIPT-6. Finally, BIPT-6 was applied as an additive to epoxy resin to prepare anti-corrosive coatings. The EIS results show that BIPT-6@Epoxy coating system provides a superior corrosion protection and stability to aluminum alloy AA2024 compared to blank coating. The corrosion inhibition mechanism of BIPT-6 was also investigated, highlighting its synergistic effect from dual corrosion inhibitors. This work showcased BIPT-6 as a promising approach for sustainable, smart corrosion protection strategies in aluminum alloys.
研究领域:
材料科学
·
腐蚀工程
·
金属有机框架
·
表面工程
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Jinke Wang,Lingwei Ma,Xin Guo,Shanghao Wu,Tong Liu,Jingzhi Yang,Chenhao Ren,Songsong Li,Dawei Zhang
A smart coating integrating high-performance self-healing and sensitive self-reporting abilities was developed based on mesoporous SiO 2 nanoparticles (MSN) containing both 1,10-phenanthroline-5-amine (Phen-NH 2 ) and cetyltrimethylammonium bromide (CTAB). In the obtained MSN-PC nanocontainers, Phen-NH 2 functioned as both the corrosion inhibitor and the coloration species, while CTAB acted as not only the template agent but also the corrosion inhibitor. The synthesis of MSN-PC was achieved in a facile one-step process with high encapsulation degree, and both Phen-NH 2 and CTAB exhibited the accelerated release behaviors from MSN-PC triggered by pH variation. Electrochemical impedance spectroscopy (EIS) measurement and quantum chemical calculation results confirmed the synergistic inhibition effect of Phen-NH 2 and CTAB against the corrosion of steel substrate and thus a self-healing effect of the damaged coating. Compared with the blank epoxy coating, the healed epoxy coating containing 4 wt% of MSN-PC could increase the low frequency impedance modulus by more than 20 times after 120 h of immersion in 3.5 wt% NaCl solution, hence suppressing the corrosion activity on the exposed metal surface. In addition to the self-healing property, the generated Fe 2+ ions from the anodic site of exposed steel surface could quickly react with the released Phen-NH 2 from MSN-PC nanocontainers to produce a prominent red color, achieving the timely indication of coating damage within 20 min of salt spray test. The smart coating realized sensitive corrosion visualization while significantly delaying the corrosion degradation, which holds great potential for long-term corrosion protection.
研究领域:
材料科学
·
腐蚀与防护
·
智能涂层
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2019
·
IF 3.42
Min Gao,Jixiao Wang,Yu Zhou,Mainul Morshed,Zhi Wang,Song Zhao
Reasonable design, preparation and application of efficient additives with controllable morphology are of the topical challenge for significantly improving their protective performance. Herein, bifunctional oxygen-vacancy abundant perovskite nanosheets, an efficient additive for improving coating’s protective performance, were prepared and used to develop the high performance protective coating. Bifunctional oxygen-vacancy abundant perovskite nanosheets transport oxygen to the metal surface through oxygen vacancies to promote the formation of a passivation layer, and the sheet structure hinders the penetration of other corrosive media. Meanwhile, the prepared coatings with the high protective performance were evaluated by immersion the samples in 12 wt% NaCl solution at 95 °C and characterized by electrochemical impedance spectroscopy (EIS). The experimental results demonstrate that the coatings containing 1 wt% perovskite nanosheets have the protection capability over 80 days, which impedance value exceeds 10 10 Ω cm 2 . The proposed strategy should be a universal pathway to improve the protective performance of coatings.
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
JOURNAL OF MATERIALS SCIENCE
·
2020
·Vol. 56
·期 8
·5143-5160
·
IF 3.553
Bao Yan,Yan Yan,Wei Yanmin,Ma Jianzhong,Zhang Wenbo,Liu Chao
Capsules containing corrosion inhibitors have drawn considerable attention in the field of self-healing corrosion protection because of their appropriate size and high efficiency. ZnO has become a type of promising encapsulants due to its high structural tunability and unique surface chemical property. Meanwhile, carbon dots (CDs) have huge application potential to replace the existing toxic corrosion inhibitors. Herein, a corrosion-resistant microcapsule with nitrogen-doped carbon dots (NCDs) as the core material and ZnO as the wall material (NCD@ZnO MCs) was developed to exert perfectly the advantages of the two materials. The NCDs were first synthesized by solvothermal method, and the NCD@ZnO MCs were then fabricated just by stirring at room temperature. The morphology, microstructure and composition of NCDs and NCD@ZnO MCs were characterized, respectively. The superiority of NCD@ZnO MCs in improving the anti-corrosion resistance of waterborne coatings was also discussed. The results showed that the obtained NCDs had a size distribution of 2–5 nm and the N-doping content was 6.56%. The size distribution and shell thickness of the prepared NCD@ZnO MCs were 100–200 nm and 30–90 nm, respectively. The encapsulation efficiency of NCDs was 34.69 ± 3.04%. The release behavior of NCD@ZnO MCs exhibited a dependence on salt concentration. Electrochemical impedance spectroscopy (EIS) measurements showed that NCD@ZnO MCs as fillers significantly improved the durability of the coating in terms of anti-corrosion resistance in all solutions with different salt concentrations. This smart filler is a promising candidate for application in anti-corrosive coatings, due to its low toxicity, facile synthetic route, near nanoscale size and sensitive environmental responsiveness. Graphical abstract
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
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Yanhua Xu,Xinyu Guo,Ningxuan Chen,Lei Zhang,Wenshan Zhao
To develop high efficiency organic pickling inhibitor, a new β-amino alcohol compound named 1,16-(5,12-dihydroxy-7,10-dioxa-3,14-diazahexadecane) di- p -benzenesulfonamide (TDB) was well designed and synthesized. The corrosion inhibition performances of TDB for mild steel in 0.5 M H 2 SO 4 solution were investigated by weight-loss, electrochemical impedance spectroscopy and potentiodynamic methods. It has been found that the inhibition efficiency of TDB derived from potentiodynamic method was 90.7 % at a low concentration of 10 mg/L at 25 °C. Effect of temperature indicated that the inhibition efficiency was still above 89 % even at 45 °C in the presence of 100 mg/L of TDB in 0.5 M H 2 SO 4 solution. XPS analyses showed that TDB prevented the attack of the corrosive medium by adsorbing on the surface of the mild steel. Theoretical calculations indicated that the structure of TDB is conducive to form an adsorption layer on the mild steel surface.
研究领域:
材料化学
·
腐蚀科学
✓ 已验证
产品关联
DOI
高影响因子
Analytical Methods
·
2014
·Vol. 6
·期 6
·1736-1742
·
IF 1.938
Shiquan Xiong,Junjie Cheng,Lulu He,Min Wang,Xin Zhang,Zhengyan Wu
A β-cyclodextrin–graphene (β-CD–G) hybrid composite modified glassy carbon electrode for the first time was used for electrochemically detecting di(2-ethylhexyl)phthalate (DEHP), based on the inclusion of DEHP into β-CD. The electrode was characterized by cyclic voltammetry and electrochemical impedance spectroscopy. At the composites electrode, the impedance value increased linearly with the increasing DEHP concentration in the range of 2 μM to 18 μM, the limit of detection was 0.12 μM (3σ method), with a correlation coefficient of 0.998. The electrode showed good selectivity, reproducibility and stability. Obviously, the collected amounts of DEHP by β-CD–G could be detected through this electrochemical method. Furthermore, this simple and low-cost sensing platform can in principle be extended to the detection of other phthalate esters which can form host–guest complexes with cyclodextrin.
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2014
·
IF 4.086
Hailong Lv,Song Qiu,Guixia Lu,Ya Fu,Xiaoyu Li,Chenxi Hu,Jiurong Liu
Antimony/carbon (Sb/C) composite fibers with Sb nanoparticles uniformly dispersed in carbon matrix have been successfully fabricated by a facile spinning approach and the subsequent calcination in argon flux. As the anode materials of lithium-ion battery, experimental results reveal that the increase of Sb concentration enhanced the lithium-ion storage capacity and worsened the cycling performance. Carbon matrix could efficiently buffer the volume change and maintain the integrity of electrode during the lithiation/delithiation, improving the cycling capability. Among the Sb/C composite fibers, the sample (Sb5) with appropriate carbon content of ca. 50.1 wt% achieves a reversible capacity of 315.9 mAh g −1 after 100 cycles at a current density of 100 mA g −1 and the capacities of 464.4, 395.4, 328, 246.2 and 149.8 mAh g −1 at 100, 200, 400, 800 and 1600 mA g −1 , respectively. Electrochemical impedance spectroscopy (EIS) results indicate that Sb5 shows more superior charge transfer rate and Li-ion diffusion ability than the samples with high Sb concentration (Sb6) or carbon concentration (Sb4), finally resulting in better capacity retention and rate performance.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
MOLECULAR CRYSTALS AND LIQUID CRYSTALS
·
2021
·
IF 0.896
Hua Tong,Zilong Zhao,Xin Wu,Wei Liu
In the present work, two titanium precursors, titanium tetraisopropanolate (TTIP) and tetrabutyl titanate (TBOT), have been used to prepare titanium-based hybrid coatings by sol–gel method, with glycidyl ether oxypropyl trimethoxysilane (GPTMS) as the coupling reagent. The prepared hybrid coating materials are characterized by Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction analysis (PXRD), and thermogravimetric (TG) analysis. The morphology of the coating has been studied by scanning electron microscope (SEM). The corrosion protection of the hybrid coatings in 3.5 wt% sodium chloride medium are studied by the electrochemical impedance spectroscopy (EIS) and polarization method, and the results show that the hybrid coatings show corrosion protection of Cu substrates in aqueous 3.5% NaCl medium with a maximum corrosion inhibition efficiency of 88.9% achieved.
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
Journal of Coatings Technology and Research
·
2022
·Vol. 19
·期 5
·1409-1420
·
IF 2.339
Zhang Manxia,Zhao Xinyi,Jia Hang,Xing Haoran,Zhang Hongjing,Wang Xinyue,Liu Cheng
The epoxy resin coating has been widely used; however, its anticorrosion performance still needs to be improved. Basalt materials have been used as fillers in the field of anticorrosive coatings due to their good corrosion resistance and acid and alkali resistance. In this paper, 3-aminopropyltrimethoxysilane (APTMS) was used as a coupling agent to modify the surface of basalt powder. The modified basalt powder (MBP) was characterized by scanning electron microscope (SEM) and Fourier transform infrared-attenuated total reflectance (FTIR-ATR). The MBP was added to epoxy resin in different proportions as fillers, and the coatings with different MBP contents were prepared by applying the mixture on the metal substrates. The hardness of coatings can be enhanced up to 0.25 GPa with the increase in MBP, and the elastic of coatings increases to the highest of 4.97 GPa for MBP-10/EP. Their water absorption rates after soaking in water for 21 h decreased to 0.75%. Meanwhile, the anticorrosion performance of the coatings on substrates during exposure to 3.5 wt% NaCl solution was investigated by using electrochemical impedance spectroscopy (EIS), and the circuit-fitting of EIS tests was also performed. The corrosion resistance of EP coating has been obviously improved by adding MBP, with the low-frequency impedance value (| Z | 0.01Hz ) of MBP-10/EP up to 2.43 × 10 8 Ω·cm 2 after being immersed in 3.5 wt% NaCl solution for 15 d, which was 7.8 times higher than that of neat epoxy coating (MBP-0/EP).
研究领域:
材料科学
·
防腐蚀工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2022
·Vol. 33
·期 24
·19331-19343
·
IF 2.779
Li Weiyin,Zhao Tongtong,Ding Lingling
Au@BSA was prepared at pH 8, pH 9, pH 10, pH 11, pH 11.4, and pH 12 as the working electrode of the non-enzymatic glucose sensor by biological template method. The six kinds of gold-cluster film working electrodes sintered by Au@BSA show golden color, especially the golden films corresponding to pH 8 and pH 12 are obvious. The gold-cluster films at pH 8, pH 9, pH 10, and pH 11 showed mono-layer gold nanoparticles, while the gold-cluster film at pH 11.4 showed porous structure. The gold-cluster film prepared at pH 12 presents a multi-layer 3D structure composed of a large number of gold nanoparticles. The linear detection range of the non-enzymatic glucose sensor prepared at pH 8 is the widest among the six sensors, and its sensitivity is also better than the other four sensors except the sensor prepared at pH 12. The sensor with the gold-cluster film-modified working electrode prepared at pH 12 show the highest sensitivity (330.002 μA mM −1 cm −2 ), because multi-layer 3D structure can bring more electric catalytic active site for this sensor. The electrochemical impedance spectroscopy showed that the specific surface area of the sensor prepared at pH 12 was much larger than that of the other five sensors. We provide a pH cycling method for once shaping preparation that can be extended to other metal films or metal-oxide films electrochemical interfaces. The Au@BSA non-enzymatic glucose sensor prepared in this paper is stable and can resist the toxicity of excessive chloride ions without losing activity.
研究领域:
生物传感器
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2023
·
IF 10.9
X.P. Hu,Y.H. Zhang,C.B. Liu,H.Z. Cui
Two-dimensional materials have been proved to be effective in improving the performance of anticorrosive coatings. However, most of the reported two-dimensional materials only have the ability to passively block corrosive media and cannot effectively inhibit localized corrosion reactions at the metal/coating interface. Herein, we first synthesized a novel polyaniline (PANI) nanosheet with both barrier and passivation functions for metals. In addition, polydopamine (PDA) wrapped PANI nanosheets (PANI@PDA) were obtained by in situ self-polymerization reaction of dopamine on the PANI surface, which enhance its interfacial interaction with polymeric resin. The chemical structure, morphology and corrosion inhibition properties of the nanosheets were systematically analyzed. The incorporated PANI@PDA nanosheets in composite coating provide a longer penetration path for corrosive mediums. Secondly, the uniformly dispersed two-dimensional nanosheets induce the formation of passivation film on the metal substrate. The protective effect of PANI@PDA nanosheets on coatings was verified by electrochemical impedance spectroscopy (EIS). Results indicated that the prepared composite coating exhibited excellent corrosion resistance throughout the test cycle. This simple and effective modification strategy based on conductive polymers provides a new insight into the development of environmentally adaptive composite coatings with active and passive protection.
研究领域:
材料科学
·
腐蚀与防护
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Meng Yang,DanDan Li,Haoyang Sun,Fan Lei,Yi Huang,Dazhi Sun
Graphene, due to its unique two-dimensional structure and superior barrier property, is considered as an excellent filler in organic coatings used for the corrosion protection of metals. However, it has also been found to promote the metal corrosion because of its high electrical conductivity. In this work, we used electrically insulated fluorographene (FG) nanoplatelets as fillers for epoxy coatings and investigated their corrosion protection properties for metals. FG was prepared by a microwave-assisted liquid phase exfoliation method and then was incorporated into epoxy matrix through an environment-friendly solventless method. The electrochemical impedance spectroscopy (EIS) and the potentiodynamic polarization measurements show that the prepared FG/epoxy nanocomposite coatings exhibit superior anticorrosion performance, which are improved by one order of magnitude compared with the pure epoxy coating. The improvement of the corrosion resistance of the nanocomposite coatings is mainly attributed to the barrier properties and electrical insulation of FG nanoplatelets. Moreover, the nanocomposite coating containing 0.5 wt% FG shows the best anticorrosion performance because of the uniform dispersion of a small amount of FG nanoplatelets in the epoxy matrix.
研究领域:
材料科学
·
腐蚀与防护
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）