RSC Advances
·
2016
·Vol. 6
·期 104
·102406-102412
·
IF 3.289
Shuchen Shi,Xiaowei Zhao,Qian Wang,Huiting Shan,Ying Xu
A novel scale and corrosion inhibitor, polyaspartic acid/furfurylamine graft copolymer (PASP/FA), was synthesized using maleic anhydride, urea, and furfurylamine (FA) as raw materials. The structure of PASP/FA was characterized by 1H NMR. PASP/FA exhibits excellent scale inhibition performance at low concentration, and its overall performance was significantly improved as compared with polyaspartic acid. The inhibition efficiency of PASP/FA was close to 100% against CaCO3 with 1 mg L−1 inhibitor at 80 °C and reached up to 100% against CaSO4 at 70 °C when dosage of the inhibitor was 5 mg L−1. The best inhibition efficiency against Ca3(PO4)2 at 80 °C was about 96% when the concentration of inhibitor was 10 mg L−1. The maximum corrosion inhibition efficiency at 45 °C was as high as 30%, when 16 mg L−1 of inhibitor was adopted. When the temperature was 50 °C and a pH = 9, the best dispersion capacity for Fe2O3 (according to 69% of transmittance) was reached when 48 mg L−1 of inhibitor was applied in the tested system. The structure and morphology of CaCO3 and CaSO4 were observed by scanning electron microscopy (SEM) and X-ray powder diffraction (XRD).
研究领域:
材料化学
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工业化学
✓ 已验证
产品关联
DOI
高影响因子
Green Chemistry Letters and Reviews
·
2019
·
IF 2.754
Jinchang Wang,Yuanhua Lin,Zhipeng Sun,Xi Luo,Wanying Liu,Xuefeng Deng
In this study, Corydalis yanhusuo extract acts as a green inhibitor for J55 steel in 3.5% NaCl solution saturated with CO2. Rapid resolution liquid chromatography shows the concentrations of Palmatine to be 0.6358 g/L, Tetrahydropalmatine 0.7715 g/L, and Corydaline 0.3755 g/L. Potentiodynamic polarization results suggest that Corydalis yanhusuo extract is a mixed-type inhibitor. The inhibition efficiency of Corydalis yanhusuo extract increases with the increase of concentration and reaches 92.36% at 5%v/v but decrease with the increased temperature. The inhibition efficiency is 69% at 80°C. The protective film formed on the metal surface was confirmed by Fourier transforms infrared spectroscopy, UV–visible, scanning electrochemical microscope and scanning electron microscope methods. The quantum chemical calculations predicate that Palmatine acts as the major component for inhibition performance.
研究领域:
腐蚀科学
·
材料保护
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绿色化学
✓ 已验证
产品关联
DOI
高影响因子
CORROSION REVIEWS
·
2023
·Vol. 41
·期 2
·225-235
·
IF 3.2
Zhenkai Xu,Lian Chen,Jingliang Han,Chengfei Zhu
Sodium molybdate (Na 2 MoO 4 ) was selected as the corrosion inhibitor, compounded with benzimidazole, in order to prolong the service life of the hot-dip galvanized steel (HDGS) in the marine environment in this article. XRD, SEM/FESEM and EDS were used to characterize the micro-morphology and elemental composition of HDGS. Immersion corrosion test, Tafel polarization and EIS test were carried out to study the effect of compound inhibitor on the corrosion resistance of HDGS in the marine environment. The best proportion of compound inhibitor was added to the self-made waterborne polyurethane coating (WPUC), aiming to evaluate its influence on the coating performance in the marine environment by immersion corrosion test and EIS test. The results showed that Na 2 MoO 4 , as a passivation type corrosion inhibitor, bounded Zn at the active sites of HDGS coupons and created structural defects. Benzimidazole, as an adsorption type corrosion inhibitor, was attracted by electricity and adsorbed at the structural defects. Under the premise of 1 wt% total content, the optimal ratio of Na 2 MoO 4 & benzimidazole was 9:1 and the corrosion inhibition efficiency was 99.62%. The corrosion current density of HDGS in the simulated seawater with compound inhibitor was 5.650 × 10 −8 A/cm 2 , while that of HDGS in the simulated seawater without compound inhibitor was 1.483 × 10 −5 A/cm 2 . The WPUC containing compound inhibitor had a small decrease in corrosion resistance due to defects created by doping at the beginning of immersion, then the compound inhibitor would play an active role in the corrosion process to make more than double the service life of WPUC.
研究领域:
材料科学
·
腐蚀与防护
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Feng Yang,Xiangyu Li,Zhendong Dai,Tong Liu,Wenru Zheng,Haichao Zhao,Liping Wang
The spherical polydopamine (PDA) nanoparticles with a uniform particle size around 230nm were synthesized successfully by self-polymerization of dopamine hydrochloride in Tris-buffer solution. The inhibitor effects of PDA nanopartilces on mild steel in 1 M HCl were investigated by weight loss, potentiodynamic polarization, electrochemical impedance (EIS), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The results confirmed that PDA nanopartilces adsorbed onto the mild steel surface and efficiently inhibited the corrosion process. The inhibition efficiency of polydopamine inhibitor was up to 86% at a concentration of 40 mol/L, and the adsorption obeyed Langmuir adsorption isotherm. Meanwhile, potentiodynamic polarization studies showed that the corrosion inhibitor was a mixed inhibitor. SEM and AFM further confirmed the formation of a protective film on the mild steel surface.
研究领域:
材料科学
·
电化学
·
表面科学
✓ 已验证
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2022
·
IF 5.477
Hailin Zhu,Jianhua Liu,Xiaomeng Lu,Dehua Wang,Tao Geng,Li Feng,Dong Liang,Xuemei Ma,Zhiyong Hu
Background Epoxy coatings usually have cavities and defects, leading to their anticorrosion properties reduced significantly. The purpose of this paper is to improve the hydrophobic properties of epoxy coatings to obtain good corrosion resistance. Methods A superhydrophobic hybrid epoxy coating (SHEP) with excellent anticorrosive performance was prepared by the combination of internal modification of mesoporous molecular sieve loaded with triazine corrosion inhibitor and external superhydrophobic surface modification. The surface topography, wettability, and anticorrosion efficiency for prepared coating have been analyzed through scanning electron microscopy measurement (SEM), atomic force microscopy measurement (AFM), contact angle test, and electrochemical impedance spectroscopy measurement (EIS). Significant findings The water contact angle of SHEP coating is 169.3°, and the roll angle is less than 1°. The surface of SHEP remains superhydrophobic after immersing in strong acidic or alkaline solution for 6 h. Compared with pure epoxy resin coating (EP), the |Z| 0.01 Hz of SHEP is bigger than two orders of magnitude, demonstrating good corrosion resistance.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
SURFACE REVIEW AND LETTERS
·
2023
·
IF 1.1
JINGBAO WANG,MOHAMMAD TABISH,JINGMAO ZHAO
Magnesium alloy with good application potential has a poor corrosion resistance, so it is essential to develop a new corrosion inhibitor and investigate the inhibition mechanism for magnesium alloy. In this work, three vapor phase corrosion inhibitors (VCIs) were used for AZ31B magnesium alloy under a simulated ocean–atmosphere environment, and the inhibition behaviors and mechanisms were studied. The inhibition performances of the three VCIs were evaluated by Digital Still Camera, electrochemical tests and scanning electron microscopy (SEM). Fourier transform infrared spectroscopy (FTIR) combined with X-ray photoelectron spectroscopy (XPS) was used to further explore the inhibition mechanism. Compared to benzoic acid and ammonium benzoate, o-phthalic anhydride can provide the best protection for AZ31B magnesium alloy. The i corr was reduced from 11.18 μ A cm − 2 (blank) to 0.65 μ A cm − 2 and the ( R f + R ct ) was increased from 1478.1 Ω cm 2 (blank) to 3129.8 Ω cm 2 with o-phthalic anhydride as VCI. O-phthalic anhydride combined with Mg 2 + to form different complexes with different molecular weights, which developed a more compact protective film on the AZ31B surface. Overall, the o-phthalic anhydride can be utilized as an excellent VCI for AZ31B magnesium alloy in a simulated ocean–atmosphere environment.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2023
·
IF 3.6
Li Wang,Zhikun Wang,Fengting Li,Yueqi Liu,Miantuo Li,Nannan Cui,Songqing Hu,Shuangqing Sun
Chitosan microspheres (CSM) loaded with synthesized Gemini imidazolium-based ionic liquids ([C 2 (Bim) 2 ]Cl 2 @CSM and [C 6 (Bim) 2 ]Br 2 @CSM) are constructed as smart corrosion inhibitors to protect N80 steel in hydrochloric acid solution. The optimal inhibition efficiency of [C 2 (Bim) 2 ]Cl 2 and [C 6 (Bim) 2 ]Br 2 at 300 mg L −1 reaches 94.68% and 95.96%, respectively, indicating mixed-type inhibition behavior. On this basis, the prepared [C 2 (Bim) 2 ]Cl 2 @CSM and [C 6 (Bim) 2 ]Br 2 @CSM can proactively identify corrosive environments and protect the metal. The microspheres are pH-responsive owing to the presence of Schiff-base C═N bonds and the loaded inhibitors can be released rapidly in acidic environment. Released inhibitors are delivered to corroded sites and synergistically interact with decomposed microspheres for enhanced corrosion inhibition effect.
研究领域:
材料科学
·
腐蚀与防护
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2020
·Vol. 44
·期 41
·17791-17814
·
IF 3.288
Hany M. Abd El-Lateef,K. Shalabi,Ahmed H. Tantawy
The facile synthesis approach, surface-active properties, and anti-corrosive efficiency of innovative urea-based cationic fluorinated surfactants (FUS) of variable alkyl chain length were investigated. The effect of as-prepared FUS inhibitors on carbon steel corrosion in 15% HCl solution at 20–50 °C was examined using weight loss and various electrochemical methods (open circuit potential (OCP) vs. time, potentiodynamic polarization (PDA) and electrochemical impedance spectroscopy (EIS) methods). The corrosion protection capacities at an optimum concentration (0.5 mM) are 93.2% (FUS-8), 96.3% (FUS-10) and 97.6% (FUS-12) by PDA, comparable to the findings achieved by EIS. PDA measurements indicated that the studied FUS act as inhibitors of mixed-type and chemical adsorption on a carbon steel interface following the Langmuir isotherm model. The thermodynamic and kinetic indices of the corrosion and adsorption processes were estimated and interpreted. Surface examinations by X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy and energy dispersive X-ray analysis (FESEM/EDX) revealed the formation of a protecting layer at the carbon steel/HCl interface. Quantum chemical indices (DFT based) delivered more understanding of the inhibition mechanism. Molecular dynamics (MD) simulations were accomplished to explore the configurational adsorption performance of the studied fluorosurfactants on the iron(110) interface. It is supposed that these findings are of some significance for the reasonable design of effective inhibitors for acidic corrosion.
研究领域:
材料科学
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电化学
·
计算化学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Xin Liu,Jihui Wang,Wenbin Hu
The hollow Fe 3 O 4 microspheres were firstly synthesized by solvothermal method. And then Fe 3 O 4 /MBT nanocomposite inhibitor was obtained by loading 2-mercaptobenzothiazole (MBT) inhibitor under negative vacuum impregnation treatment and characterized using transmission electron microscopy , X-ray diffraction, Fourier transform infrared spectroscopy , nitrogen adsorption-desorption isotherms and vibrating sample magnetometer . The release behavior of MBT and inhibition behavior of Fe 3 O 4 /MBT nanocomposite under different magnetic field (MF) strength were evaluated by UV–vis spectroscopy, electrochemical techniques and immersion tests. The results show that the synthesized superparamagnetic Fe 3 O 4 /MBT nanocomposite shows high MBT loading capacity of 55.4 %. Under the application of MF, the release behavior of MBT from Fe 3 O 4 /MBT is dominated by Fickian diffusion and diffusion among magnetic nanoparticles , and the release rate and inhibition efficiency are less than that of without MF under the same release time. The nanocomposite has a good inhibition effect for carbon steel in NaCl solution with maximum inhibition efficiency of 95.7 %, and also possesses excellent recycling stability with loading capacity of 45.1 % and inhibition efficiency of 78.8 % after five cycles.
研究领域:
材料科学
·
电化学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Haidong Jia,Han Jia,Yi Lu,Xiaowei Li,Chunping Guo,Chuanqi Li,Zhihao Shen,Pingan Pei,Han Sun,Kaihe Lv,Pan Huang
A novel ammonium-derived dihydroxyl ionic liquid ([C 16 DPOA]Br) and a control ionic liquid ([C 16 DPA]Br) are synthesized to reveal the effect of dihydroxyl and head groups on their inhibition property via the weight-loss method, surface analysis, electrochemical measurements, and adsorption isotherm studies. [C 16 DPOA]Br exhibits the optimal inhibition ability (93.47 %) for mild steel in 1 M HCl in contrast to [C 16 DPA]Br (88.03 %) and the traditional cationic surfactant CTAB (92.34 %). Based on the experimental results, it can be inferred that the short alkyl chain (propyl) impedes the tight alignment of [C 16 DPA]Br on the metal surface and the interactions between hydroxyl and iron atoms enable [C 16 DPOA]Br to overcome the negative effects of the short alkyl chain on the inhibition property. Finally, molecular electrostatic potential (MEP) distribution and molecular dynamics (MD) simulation verify the reactive sites and adsorption capacity of corrosion inhibitors from the microscopic scale, which further confirms the proposed mechanism. This study focuses on the significance of dihydroxyl and head groups on the inhibition property and provides unique insights into the development of efficient ionic liquid corrosion inhibitors.
研究领域:
材料科学
·
腐蚀与防护
·
表面科学
✓ 已验证
产品关联
DOI
高影响因子
CORROSION SCIENCE
·
2025
·
IF 8.5
Jiahui Ma,Yating Huang,Jie Cheng,Qinhua Miao,Jinchi Chen,Shirong Ge
Cu and Co serve as interconnect metals in back-end-of-line (BEOL) integrated circuit fabrication. Chemical mechanical polishing (CMP) achieves planarization through chemical oxidation and dissolution by slurry components, which inevitably causes excessive corrosion and surface defects. Consequently, a critical aspect of metal CMP slurry engineering involves suppressing surface defects from both electrochemical and triboelectrochemical effects. Selecting effective corrosion inhibitors is crucial for optimizing both material removal rate and surface quality. In this work, typical azole inhibitor 1, 2, 4-triazaole (TAZ) was systematically evaluated for both the Cu and Co polishing slurries. Corrosion kinetics and thermodynamic parameters were determined by analyzing temperature-dependent corrosion current density variations. Electrochemical results demonstrate that TAZ significantly elevates apparent corrosion activation energies from 13.84 to 20.98 kJ·mol⁻¹ for Co and 13.51–44.78 kJ·mol⁻¹ for Cu, while achieving superior inhibition efficiency for Cu ( η = 80.97 % at 2 mM) compared to Co ( η = 30.68 % at 10 mM). KPFM and DFT calculations confirm substantially increased work function on Cu surfaces even at low TAZ concentrations. Moreover, triboelectrochemical measurements reveal divergent friction-driven mechanisms where mechanical action enhances cathodic processes on Co, shown by positive OCP shifts, but promoting anodic dissolution on Cu through negative OCP shifts. TAZ effectively mitigates tribocorrosion by forming lubricating adsorption layers that reduce coefficients of friction by over 40 % and suppress material loss. These insights provide a fundamental basis for the rational screening and selection of inhibitors optimized for dynamic CMP conditions.
研究领域:
材料科学
·
微电子制造
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表面工程
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电化学
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腐蚀科学
·
半导体工艺
✓ 已验证
产品关联
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2025
·
IF 6.3
Sifei An,Qiang Wang,Haini Yang,Daquan Zhang,N.N. Andreev
Background Schiff bases are attractive as eco-friendly corrosion inhibitors for the protection of metals. In this study, a novel volatile corrosion inhibitor (VCI) based on Schiff base (LEU-T) is synthesized from leucine and salicylaldehyde. This study evaluates the volatile corrosion inhibition performance of LEU-T on mild steel and examines its anti-corrosion effect in a simulated atmospheric corrosion solution. Methods The corrosion inhibitor is characterized by Fourier transform infrared (FT-IR) absorption spectra. The corrosion behavior, inhibition efficiency, and anti-corrosion mechanism of the inhibitor on mild steel are evaluated using volatile inhibition ability (VIA) tests, electrochemical measurements (including potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS)), and theoretical calculations. Scanning electron microscopy (SEM) and atomic force microscope (AFM) confirm the formation of the inhibitive films on mild steel. Significant Findings The results demonstrate that LEU-T exhibits outstanding inhibition efficiency of 82.18 % in VIA tests. Electrochemical measurements indicate that the formed inhibitive films on the steel substrate lead to an increase in the charge transfer resistance. The corrosion inhibition efficiencies of leucine and LEU-T, as determined by electrochemical impedance spectroscopy, are 67.84 % and 83.90 %, respectively. SEM and AFM observations indicate that the inhibitor forms a protective VCI coating, effectively retarding the steel corrosion. The LEU-T has larger adsorption energy (-136.13 kJ/mol) compared to leucine (-88.48 kJ/mol) on mild steel.
研究领域:
材料腐蚀与防护
·
应用化学
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表面科学
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电化学
·
金属材料学
✓ 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）