Materials
·
2018
·Vol. 11
·期 6
·1042
·
IF 2.467
Li Feng,Shengtao Zhang,Yujie Qiang,Yue Xu,Lei Guo,Loutfy H. Madkour,Shijin Chen
The anticorrosion effect of thiazolyl blue (MTT) for copper in 3% NaCl at 298 K was researched by electrochemical methods, scanning electron-microscopy (SEM), and atomic force microscopy (AFM). The results reveal that MTT can protect copper efficiently, with a maximum efficiency of 95.7%. The corrosion inhibition mechanism was investigated by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectral (FT-IR), and theoretical calculation. The results suggest that the MTT molecules are adsorbed on metal surface forming a hydrophobic protective film to prevent copper corrosion. It also indicates that the MTT and copper form covalent bonds. The molecular dynamic simulation further gives the evidence for adsorption. The adsorption isotherm studies demonstrate that a spontaneous, mixed physical and chemical adsorption occurs, which obeys Langmuir adsorption isotherm. The present research can help us better understand the corrosion inhibition process and improve it.
研究领域:
材料科学
·
电化学
·
表面科学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Yujie Qiang,Shengtao Zhang,Liping Wang
Deoxyribonucleic acid (DNA) was investigated for suppressing copper corrosion in 0.5 M H 2 SO 4 through electrochemical measurement, microscopic surface observation, X-ray photoelectron spectroscopy (XPS) analysis and molecular dynamics (MD) simulation. Results indicate that DNA acts as an effective cathodic-type inhibitor that mainly suppresses cathodic reaction by forming anchored DNA-adsorption film. The film shows active blocking effect, obeys the Langmuir adsorption model and involves physisorption and chemisorption . The MD simulation gives the new insights at molecular level and indicates the formation of an interesting double barrier of DNA molecule on the Cu (111) surface due to its unique twist structure.
研究领域:
材料科学
·
电化学
·
表面科学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Juan Qiu,Xiang Gao,Guiqiu Li,Kanglu Feng,Kangwei Gongsun,Chunchao Chen,Changming Bu,Houyi Ma
An approach to fabricate protective film on copper substrate utilizing molybdate or tungstate assisted by dithiol was proposed. The fabricated films exhibited double-layer structure. The top layer was an organic layer primarily composed of interconnected dithiol molecules through disulfide bonds originating from the oxidation of molybdate or tungstate. The Cu 2 S bottom-layer formed as a result of the cleavage of C-S bonds subsequent to the adsorption of dithiol molecules onto the copper matrix. The molybdate participated the film via MoO x and MoS x . Although no tungstate species were detected in the film, the oxidizing effect of tungstate facilitated a conversion of dithiol molecules into polymers, resulting in a significantly thicker surface layer. The corrosion protection efficiencies of the films reached 99.7 % and 99.8 %, respectively, attributed to the incorporation of molybdate or tungstate additives. Theoretical calculations provided valuable insights into the process of film formation and elucidated the relationship between film structure and anti-corrosion performance.
研究领域:
材料科学
·
电化学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2020
·
IF 5.065
Jiaojiao Cao,Chengbin Guo,Xingpeng Guo,Zhenyu Chen
A zeolitic imidazole framework-8 (ZIF-8) derivative was synthesized and developed as the corrosion inhibitor of copper in 0.5 mol/L NaCl solution, and its inhibition performance was investigated by electrochemical measurement and surface analysis . Results show that the ZIF-8 derivative could effectively inhibit copper from corrosion, and the inhibition efficiency was 87.2% at an optimal ZIF-8 derivative concentration of 45 mg/L. The corrosion inhibition mechanism of the ZIF-8 derivative could be explained as follows: the amino functional groups and the π-system formed by aromatic rings of the ZIF-8 derivative were tightly adsorbed on the copper substrates, which systematically formed a hydrophobic film, thereby effectively inhibiting the corrosion caused by aggressive ions.
研究领域:
材料科学
·
电化学
·
表面分析
✓ 已验证
DOI
高影响因子
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
·
2018
·
IF 1.039
Yang Zhou,Lei Guo,Zhiheng Zhao,Sisi Zheng,Yue Xu,Bin Xiang,Savaş Kaya
The inhibition performance of domperidone on the corrosion of copper in different concentration of HCl solution has been investigated by electrochemical, weight loss, and surface analysis, and theoretical calculation methods. Results indicate that domperidone was found to be an effective inhibitor with the inhibition efficiency as high as 98.5% when the HCl concentration was 0.01 M, and the corrosion rate of copper increased with the increment of HCl concentration from 0.001 to 1 M. The potentiodynamic polarization results revealed that domperidone can be seen as a mixed type inhibitor when the HCl concentration was high (1 and 0.1 M), while it acted as a cathodic inhibitor for copper at low HCl concentrations (0.01 and 0.001 M). The potentiodynamic polarization results revealed that domperidone can be seen as mixed-type or cathodic inhibitor as the HCl concentration changes. Scanning electron microscopy studies indicated the formation of protective films of inhibitor molecule on copper surface. Besides, density functional theory-based quantum chemical calculations and molecular dynamics simulations showed the electronic structure of domperidone and its optimized adsorption configuration on copper surface, which could account for the experimental findings.
研究领域:
材料科学
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电化学
·
理论计算
✓ 已验证
产品关联
DOI
高影响因子
CORROSION SCIENCE
·
2018
·
IF 4.862
Cheng Shi,Yizhen Wang,Yinzhe Yu,Jin Li,Daquan Zhang,Lixin Gao
The click chemistry reaction between 2, 2-dimethylethynyl carbinol (MBY) and tosyl azide (TA) was used to form triazole films on copper surface. The effect of cuprous ions on the assembled films was investigated by the electrochemical measurements. The assembled films have the best protection efficiency of 93.8%. The attack of chloride ions gives out cuprous ions to catalyze the formation of compact triazole films. It shows that the assembled films have an anodic passivation role, and suppress the anodic corrosion reactions evidently. The role of cuprous ions on the films formation during the assembling process is discussed.
研究领域:
材料科学
·
电化学
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2021
·
IF 8.067
Jing Wang,Ning Wang,Mengnan Liu,Chengyue Ge,Baorong Hou,Guichang Liu,Wen Sun,Yiteng Hu,Yanli Ning
Hexagonal boron nitride ( h -BN) fillers are incorporated into poly(vinyl butyral) (PVB) coatings to improve the corrosion protection performance of copper. It has been revealed that the h -BN fillers exhibit an excellent dispersiblility in PVB coating due to the non-covalent interactions between h -BN fillers and the PVB molecules. Electrochemical characterization reveals that the corrosion resistance of the BN-reinforced PVB (BN-P) coating is 5–6 orders of magnitude higher than that of the pristine PVB coating. Photographs and metallography show that the copper substrate beneath the BN-P coating does not suffer from corrosion after immersion for 2 months, indicating that the BN-P coating can provide a long-term protective barrier for the underlying copper substrate. Loading 0-0.25 g h -BN fillers in 2.0 g PVB, the corrosion protection performance increases with increasing the loading of h -BN fillers. The scratch test results suggest that h -BN fillers do not accelerate copper corrosion when the BN-P coating is damaged.
研究领域:
材料科学
·
电化学
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2024
·Vol. 171
·期 11
·111502
·
IF 3.1
Thanh Hai Pham,Viorel Chihaia,Phung K. Le,Do Ngoc Son
The influences of -NH2 and -Cl groups on the copper corrosion inhibition in 0.5 M H2SO4 solution by benzotriazole were studied using experimental methods and density functional theory calculations. Mass loss tests, potentiodynamic polarization, and surface morphology analyses revealed notable differences: while unmodified benzotriazole showed an inhibition efficiency of 76.6%, the -Cl derivative increased this to 87.6%, whereas the -NH2 derivative dropped it to 61.0% at the concentration of 5 × 10−4 M. Density functional theory calculations indicated these differences are not due to electronic properties or inhibitor-copper interaction energies but rather to the inhibitor's influence on the oxygen reduction reaction, especially O2 and H2O adsorption. The -NH2 group formed strong hydrogen bonds with O2 and H2O, reducing oxygen reduction inhibition, while the -Cl group repelled O2, resulting in enhanced inhibition. Free energy analysis of the oxygen reduction reaction supported these findings. These new insights into benzotriazole derivatives' copper corrosion inhibition mechanisms offer valuable guidance for developing next-generation corrosion inhibitors.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2017
·
IF 3.648
Shi Mo,Ling Jie Li,Hong Qun Luo,Nian Bing Li
The use of some industrial materials such as medicine and flavor in the anti-corrosion field is an attractive topic. A Schiff base ( N -isonicotinamido-3-methoxy-4-hydroxybenzalaldimine, IM) based on flavor (vanillin) and medicine (isoniazid) has been synthesized and utilized as a green corrosion inhibitor for copper in NaCl media. Electrochemical techniques are employed to analyze its inhibition property. The copper surface is characterized by scanning electron microscopy, infrared spectroscopy , and energy-dispersive X-ray spectroscopy. IM acts as an anodic inhibitor and its inhibition efficiency is up to 93% at 120 mg/L and more remarkable than its corresponding reactants. With a large molecular surface area and better electron donation ability, IM has a better corrosion inhibition performance and may be adsorbed on the copper surface through NH and C N groups, according to theoretical studies.
研究领域:
材料科学
·
电化学
·
表面科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Coatings Technology and Research
·
2022
·Vol. 20
·期 2
·713-724
·
IF 2.339
Cai Zhentao,Li Chunping,Zhang Daquan,Li Jin,Gao Lixin
Abstract Polyurethanes (PUs) are a polymer material with a wide range of applications and excellent mechanical properties. In this work, a modified polyurethane coating with the self-healing function is developed via the reaction between polytetrahydrofuran (PTMG), 2,4-toluene diisocyanate (TDI) and α-lipoic acid. The coatings are characterized by SEM and FTIR. The protection of the prepared coating for copper in 3 wt.% NaCl solution is investigated by the electrochemical measurements and the surface self-healing tests. The coating has stable protection from corrosion of the copper substrate in corrosive medium and shows a good self-healing ability. The healing behavior in morphology and corrosion resistance can be observed when heated above 60°C. Graphical abstract
研究领域:
材料科学
·
电化学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2017
·
IF 4.233
Shi Mo,Hong Qun Luo,Nian Bing Li
Green corrosion inhibitors are of great benefit to the protection of pipes or tanks in seawater systems. The properties of the corrosion inhibitor such as toxicity and anticorrosion performance are closely related to its molecular structure. Some thiazole derivatives are commonly known as food flavors . The influences of two thiazole flavor ingredients on Cu corrosion in NaCl solution were analyzed in this study, namely, 4-methyl-5-vinylthiazole (MVT) and 5-(2-hydroxyethyl)-4-methylthiazole (HMT). Potentiodynamic polarization and electrochemical impedance spectroscopy measurements were employed to evaluate their anti-corrosion abilities. Theoretical calculations were conducted to investigate their possible adsorption modes. The thiazole ring endows the two compounds with the high inhibition performace. However, with a conjugated system , the ethenyl has a more pronounced contribution to electron donation and adsorption ability on the Cu surface than hydroxyethyl group.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
·
2021
·
IF 2.077
Yuming Lai,Ya Gao,Xiuquan Yao,Chuanhui Zhang,Lei Wen,Yin Jin
Three thiophenol derivatives with different substituent groups, 2-Naphthalenethiol (2-NT), 4-Chlorothiophenol (4-Cl) and p-Toluenethiol (4-MT) were selected to study the corrosion inhibition performance for copper in saline medium. Potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) measurements, and weight loss tests were performed to compare the effect of different concentrations and various types of thiophenol derivatives on corrosion inhibition performances. Scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), and Surface-enhanced Raman spectroscopy (SERS) were utilized to characterize surface morphology and molecular structures of copper samples after corrosion in saline medium or electrochemical tests. Quantum chemical calculations were applied to further investigate the microscopic mechanism of the interaction between thiophenol derivative inhibitor molecules and copper surface. XPS, SERS, and theoretical calculations results indicate that thiophenol derivative inhibitors were adsorbed on Cu surface by Cu–S chemical bond. It was also found that these thiophenol derivative inhibitors could effectively inhibit the corrosion of copper by chemisorption and the efficiency follows the order of 2-NT >4-Cl >4-MT. The larger conjugated aromatic structure in 2-NT may be responsible for the measured higher inhibition efficiency of 2-NT.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）