Scientific Reports
·
2024
·Vol. 14
·期 1
·1-14
·
IF 3.8
Shen Cong,Yan Jing,Ai Zhipeng,Huang Hongbing,Mo Lin,Liang Bangzhi,Zhang ChangHui
Adding corrosion inhibitors is considered to be a cost-effective way to inhibit metal corrosion. In this study, we report the synthesis of a bi-mannich base corrosion inhibitor (BMT) with an impressive inhibition efficiency on carbon steel in H 2 S and HCl co-existing solution. At the BMT concentration of 9 ppm, the inhibition efficiency (η) of 96.9%, 97.6% and 98.0% were determined by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy, respectively. The adsorption of BMT on the carbon steel surface follows the Langmuir adsorption isotherm, and the calculated free energy indicates that the adsorption is a spontaneous process. This research also delves into understanding the adsorption behavior and corrosion inhibition mechanism of BMT on carbon steel surfaces through quantum chemistry calculations. The results of this study provide guidance for the application of BMT as a corrosion inhibitor in sour and acid environments.
研究领域:
材料科学
·
电化学
·
量子化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
·
2019
·Vol. 91
·期 12
·2058-2064
·
IF 0.508
Zhan Yingqing,Zhao Rui,He Shuangjiang,Zhao Shumei,Xue Weidong
Development of novel corrosion inhibitors is important for improving the anticorrosion of carbon steel because the serious carbon steel corrosion causes enormous economic losses to humankind. In this work, we demonstrated the novel organic functionalized Fe 3 O 4 hybrid inhibitor for enhancing the anticorrosion performance of carbon steel. For this purpose, amino-Fe 3 O 4 nano-spheres (NH2–Fe 3 O 4 ) were prepared via solvothermal route, using FeCl 3 .6H 2 O as an iron source and 3-aminophenoxy-phthalonitrile as precursor. Then, the N,N-diethyl-3-amine methyl propionate (DM) was reacted with amino-Fe 3 O 4 nano-spheres to produce the organic functionalized nano-Fe 3 O 4 hybrid. The chemical composition and micro-structure of as-obtained organic functionalized Fe 3 O 4 hybrid were characterized and confirmed by Fourier transform infrared, X-ray diffraction, and scanning electron microscopy. Furthermore, the anticorrosion performance of carbon steel by addition of organic functionalized nano-Fe 3 O 4 inhibitor was investigated by AC impedance measurements and polarization curves. The research results showed that the organic functionalized nano-Fe 3 O 4 exhibited enhanced inhibition effect for carbon steel, which can be used as a new type of carbon steel corrosion inhibitor.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
ChemistrySelect
·
2024
·Vol. 9
·期 39
·e202402554
·
IF 1.9
Yu-chen Zhang,Xuan Liang,Rui Ding,An-lan Ji,Yu-han Wang,Ming-di Lei,Jie Fu,Jie Liu
Graphical The corrosion inhibition of NH 2 and OH substituted benzothiazoles on carbon steel in 0.5 mol/L HCl was investigated. 0.0010 mol/L 2-amino-6-hydroxybenzothiazole demonstrated efficient and persistent performance. The adsorption followed Freundlich-Langmuir isotherm. The OH at 6th position extended negative potential region and enhanced coordination activity, resulting in favorable orbital distribution for flat adsorption and feedback bonds. In the pickling process and acidizing program for oil wells, the acidic corrosion of metals is a problem that needs to be addressed. Various acid corrosion inhibitors have been studied and used to mitigate the acidic corrosion of carbon steel. In this paper, the corrosion inhibition of 2-aminobenzothiazole (2 N-BT), 2-amino-4-hydroxybenzothiazole (2 N4O-BT), and 2-amino-6-hydroxybenzothiazole (2 N6O-BT) on carbon steel in 0.5 mol/L HCl was investigated using electrochemical and quantum chemical methods. All three molecules exhibited corrosion inhibition effects. Compared to 2 N-BT, 2 N4O-BT and 2 N6O-BT showed less sensitivity to the environmental conditions and the surface state of the metal. Among them, 0.0010 mol/L 2 N6O-BT demonstrated the highest and most persistent corrosion inhibition, exhibiting a mixed inhibition mechanism with cathodic inhibition dominance. The adsorption of 2 N6O-BT on the carbon steel surface was found to be non-uniform, preferentially adsorbing at certain active sites on the surface, following Freundlich-Langmuir thermodynamic characteristics. It showed initial strongly adsorbed points and weakly adsorbed regions. With continued adsorption of 2 N6O-BT, the differences between strongly adsorbed points and weakly adsorbed regions decreased. The introduction of hydroxyl groups, especially in 2 N6O-BT, extended the negative potential region and enhanced the coordination activity of the molecule, generating the orbital distribution that was advantageous to flat adsorption and the formation of feedback bonds. This provided a molecular structural basis for the excellent corrosion inhibition properties of 2 N6O-BT.
研究领域:
材料科学
·
电化学
·
量子化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING & TECHNOLOGY
·
2024
·Vol. 47
·期 10
·e202400203
·
IF 1.8
Jinwei Qi,Jihui Li,Kaili Liu,Huixin Zhang,Jian Han,Jianxin Chen
The curcumin-malic acid-aspartic acid polymer (PCMA) as a new water treatment agent was prepared by solid phase synthesis of curcumin, malic acid and aspartic acid. The static scale inhibition experiments showed that PCMA can inhibit CaCO 3 and CaSO 4 scale formation by 100.0 % and had excellent scale inhibition effect under various experimental conditions. The mechanism of action of PCMA was obtained by X-ray diffraction, scanning electron microscope and molecular dynamics simulation. Electrochemical test showed that PCMA is an anodic corrosion inhibitor that achieves 93.1 % corrosion inhibition by forming a protective film on the surface of Q235 carbon steel. Besides, fluorescence spectra proved that PCMA has stable fluorescence intensity.
研究领域:
材料科学
·
化学工程
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2017
·Vol. 52
·期 20
·12251-12265
·
IF 2.599
Li Meixiu,Ji Xuqiang,Cui Liang,Liu Jingquan
Graphene has attracted much attention and triggered extensive anti-corrosion applications due to its excellent electrochemical stability and robust barrier for molecules and ions. In this paper, a novel polypyrrole/reduced graphene oxide (PPy/rGO) nanocomposite was successfully prepared on carbon steel as an efficient protective coating for improving the anti-corrosion property. Graphene oxide (GO) was deposited onto carbon steel via potentiostatic technique, and PPy was obtained simultaneously by oxidation polymerization. Scanning cyclic voltammetry method was adopted to reduce GO into rGO to form PPy/rGO nanocomposite coating. Due to the synergistic effect of PPy and rGO, excellent anti-corrosion performance for carbon steel in simulated seawater was obtained. Impressively, the PPy/rGO-coated carbon steel showed 7.05 times higher corrosion resistance than that of bare carbon steel and revealed the excellent protection efficiency above 95.9%. The anti-corrosion mechanism of the PPy/rGO coating was also proposed. Our results suggested that the PPy/rGO composite coatings could serve as effectively protectors for anti-corrosion of seawater, therefore, they could envision potential applications in naval architecture and ocean engineering.
研究领域:
材料科学
·
电化学
·
海洋工程
✓ 已验证
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Shanjian Li,Zekun Wang,Haoxuan He,Panfeng Wu
Pitting corrosion is a significant issue which significantly shorten the service life of carbon steel. In this study, imidazoline and thiourea are combined to assess the synergistic in the localized corrosion of Q235 carbon steel by a combined system. In detail, five different proportions of corrosion inhibitors are used in the simulated corrosion solution (5 wt. % NaCl + 0.5 wt. % CH 3 COOH + 1.0 wt. % Na 2 S) in the closed area to investigate the corrosion inhibition performance of Q235 steel at 80 °C. The corrosion behavior of the steel in the simulated solution was investigated using potentiodynamic polarization test and electrochemical impedance spectroscopy test. Due to the combination of imidazoline (IM) and thiourea (TU) corrosion inhibitors, the corrosion inhibitors in the simulated solution of the occlusion zone reduce the migration of corrosive anions to the occlusion zone and slowed the acidification of the solution resulting in lower concentrations of Cl - and S 2- to varying degrees and reaching a higher pH of the solution. As a result, the compounded corrosion inhibitors exhibit improved corrosion inhibition rate (80 mg/L IM+20 mg/L TU (86.91 %), 50 mg/L IM+ 50 mg/L TU (95.67 %), 20 mg/L IM+ 80 mg/L TU (86.16 %)) to Q235 steel, which is superior to that using imidazoline (63.42 %) or thiourea (92.77 %) alone. This enhanced performances fully prove the synergistic effect of imidazoline with thiourea.
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
ACS Applied Bio Materials
·
2021
·
IF 0
Yuanzhen Liang,Peng Wang,Dun Zhang
Microbiologically influenced corrosion (MIC) accelerates the corrosion and degradation of metal materials due to the settlement of microorganisms on the surface. However, environmentally friendly and efficient methods to fabricate antifouling and anticorrosion surfaces are still lacking. Inspired by Nepenthes, a slippery liquid-infused porous surface (SLIPS) has been proven to be an efficient way to inhibit settlement of microorganisms on the metal surface and the following MIC due to the existence of a mobile defect-free lubricant layer. However, the stability of the lubricant layer and substrate of the SLIPS prevented its long-term antifouling and anticorrosion application. Herein, a highly stable slippery organogel was fabricated by depositing a homogeneous mixture of PDMS (base and curing agent), silicone oil, triethoxyvinylsilane, and SiO2 on Q235 and curing in an oven. Triethoxyvinylsilane was not only able to cross-link with the curing agent of PDMS through hydrosilylation but also able to interlink the organogel and Q235 through condensation between the −OH of the metal surface and hydrolyzed siloxane. As a result, the adhesion force between the organogel without triethoxyvinylsilane and the substrate (0.45 MPa) increased to 1.50 MPa for the organogel with triethoxyvinylsilane and SiO2. Also, the tensile strength of the organogel without SiO2 (0.97 MPa) increased to 3.88 MPa for the organogel with 2 wt % SiO2 because of the high elastic modulus of SiO2, which was important to improving its stability under external force. In addition, the organogel showed stable oil distribution and slippery performance after spinning at 4000 rpm for 30 s. Then, the bacterial settlement demonstrated that the organogel could effectively inhibit Pseudoalteromonas sp. settlement on the substrate under both static and dynamic conditions. Finally, an electrochemical test indicated that the MIC could be effectively mitigated by the organogel. This study provides an efficient method to fabricate a highly stable slippery surface on a metal surface for its potential application in mitigating MIC.
研究领域:
材料科学
·
生物学
·
腐蚀工程
✓ 已验证
DOI
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Chun Bai,Shuxian Liu,Fenghai Ma,Shasha Lu,Junmei Wang,Shaodong Liu
As a new structural building material, carbon fiber-reinforced concrete has very good flexural strength, wear resistance and impermeability. However, because carbon fiber is a good conductor, the durability of reinforced concrete structures may be affected if it comes into contact with steel bars in the concrete, thus allowing the formation of a galvanic couple. In this paper, electrochemical tests and corrosion weightlessness experiments were carried out in a pore fluid of concrete with a pH of 12.5. The results showed that when carbon fiber was coupled with carbon steel, the double layer capacitance (C dl ) increased and the charge transfer resistance (R ct ) decreased. The thickness of the passivation film decreased, and the protective performance of the passivation film on the carbon steel decreased. Moreover, the corrosion potential of the carbon steel increased, the corrosion current density increased, and the corrosion rate of the carbon steel increased. An XPS analysis confirmed the results of the electrochemical experiments. After carbon fiber coupling, the ratio of Fe 3+ /Fe 2+ on the surface of the carbon steel decreased, and the stability of the passive film on the surface of the carbon steel decreased. Although coupling with carbon fiber had a negative effect on the passivation of the carbon steel, the surface of the carbon steel could still maintain good passivation in a chloride-free simulated pore fluid environment.
研究领域:
土木工程
·
材料科学
✓ 已验证
DOI
高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2024
·
IF 2.9
Chenxu Wang,Erlong Yang
In the process of oil and gas exploration, the corrosion of carbon steel pipes results in substantial economic losses, numerous casualties, environmental contamination, and resource waste. The advancement of highly efficient and stable corrosion inhibitors holds significant importance for protecting carbon steel from corrosion during oil and gas exploitation. In this study, two new cationic Gemini surfactants (2CncoesT, where n = 12, 14) were synthesized through a straightforward two-step reaction. Weight-loss tests demonstrated that the inhibition efficiency (ηw%) increases with the increase in temperature. Specifically, the maximum ηw% values for 2C12coesT and 2C14coesT were 98.0% and 98.3% respectively at 85 °C. The adsorption of these surfactants conformed to the Langmuir adsorption isotherm. Electrochemical measurements suggested that the two surfactants functioned as mixed-type inhibitors. The findings obtained from scanning electron microscopy (SEM) were consistent with the experimental outcomes that 2C12coesT and 2C14coesT are efficient corrosion inhibitors for the metal in an acidic environment. The quantum chemical investigation and molecular dynamics simulation (MD) further substantiated the experimental results and offered insights for a deeper comprehension of the inhibition mechanism of Gemini surfactants.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CORROSION SCIENCE
·
2015
·
IF 4.422
Zhe Zhang,Ningchen Tian,Lingzhi Zhang,Ling Wu
The self-assembled films of methionine and its derivatives were prepared on a 1045 carbon steel (CS) surface. EIS and potentiodynamic measurements showed that these films could effectively protect CS against corrosion in 0.5 M HCl, with a maximal protection efficiency of 95.01% achieved by FMOC films. An XPS study confirmed that methionine and its derivatives could form films by chemical adsorption on CS. The inhibition mechanism was theoretically investigated through the quantum chemical calculation and dynamic simulation.
研究领域:
材料科学
·
电化学
·
量子化学
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2023
·Vol. 13
·期 8
·1375
·
IF 3.4
Zhiqiang Niu,Xiaoming Lu,Yanan Luo
To address rebar corrosion in existing concrete structures, a multifunctional compound rust inhibitor was developed. This study investigates the impact of this inhibitor on carbon steel rust resistance, as well as the mechanical properties and durability of concrete. The results demonstrate a significant reduction in weight loss of carbon steel when using a multifunctional rust inhibitor, with a rust inhibition efficiency of 82.6%. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were employed to observe and analyze the surface elements of carbon steel, both with and without the presence of a rust inhibitor. The findings indicate that the use of a rust inhibitor leads to a smoother and more stable surface film. The results of the experiments on compressive strength, chloride ion electromobility, and the rapid carbonation test of concrete with varying rust inhibitor contents indicate that increasing the amount of rust inhibitor can improve the compressive performance of concrete and can regulate the mobility of chloride ions. Specifically, when the rust inhibitor content reaches 4%, it has a notable positive impact on the performance of concrete, and further increases in content lead to smoother results.Keywords:corrosion inhibitor;carbon steel;concrete;antirust mechanism
研究领域:
材料科学
·
土木工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
·
2025
·
IF 3.6
Wu Li-yun,Zheng Zhong,Yuan Zhang-fu,Liao Liang,Zhang Yan-gang,Zhao Lin-fei
A hydrophobic composite coating was obtained on the carbon steel surface through electrochemical deposition of a copper coating in a sulfate solution and chemical vapor deposition of a carbon fiber film. It alleviated the serious corrosion problem of carbon steel on the evaporator of hot film coupled seawater desalination system in harsh marine environment. The morphologies and compositions of the coatings were analyzed, revealing the influence of electrodeposition time on their performance. The micro-nano copper structure formed by electrodeposition significantly improved the deposition effect of carbon layer. Additionally, experiments with seawater solution contact angle tests indicated that electrodeposition transformed the surface properties from hydrophilic to hydrophobic, effectively inhibiting the diffusion of corrosive medium into the interior of the substrate. Through polarization curves, electrochemical impedance spectroscopy, and other analyses, it was demonstrated that the hydrophobic coating significantly improves the corrosion resistance of carbon steel substrates in seawater environments, surpassing the performance of traditional duplex steel.
研究领域:
材料科学
·
化学工程
·
海洋工程
✓ 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）