International Journal of Electrochemical Science
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2023
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IF 1.5
Yong Lu,Huixia Feng,Hou Xia,Wu Hai Xia
Polyaniline has a wide application in the field of corrosion protection, the poor solubility of polyaniline limited its application as a corrosion inhibitor. Water-soluble carboxymethyl cellulose -polyaniline composites was synthesized by chemical oxidation polymerization in a mild way without other inorganic or organic acids added. Corrosion inhibition performance of composites was evaluated for Q235 steel corrosion in 1 M HCl corrosive solution using weight loss and electrochemical measurements at various concentrations. The results show that carboxymethyl cellulose -polyaniline composites exhibit good inhibition properties and the remarkable increase in inhibition efficiency, i.e., 94.24% is achieved while the maximum concentration of the experiment is 1000 ppm. The composites in corrosive solution suppress the cathodic hydrogen evolution reactions and anodic metal dissolution of the substrate. Adsorption of the inhibitor on the steel surface follows a Langmuir adsorption isotherm.
研究领域:
材料科学
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腐蚀与防护
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DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Zengfeng Wei,Yumeng Zhang,Hu Xia,Lijie Ni,Wenhai Wu,Xiaoning Wang,Heng Quan
A novel bio-based corrosion inhibitor, hexadecyl amine-modified catechol (CA16), was synthesized, and its molecular structure was characterized. The ability of CA16 to inhibit the corrosion of carbon steel in 1 M HCl was evaluated by potentiodynamic polarization, electrochemical impedance spectroscopy and weight loss. The highest inhibition efficiency reached 96.87% at 10 −3 M. CA16 is a mixed-type corrosion inhibitor that can adsorb on the Fe surface spontaneously through chemical adsorption following the Langmuir adsorption model. The adsorption of CA16 and carbon steel occurred between catechol groups and the Fe surface, as confirmed by quantum chemical calculations and molecular dynamic simulations. This novel bio-derived high-performance inhibitor offers a sustainable alternative to conventional petrochemical-based counterparts, demonstrating significant potential for industrial-scale applications while aligning with green chemistry principles.
研究领域:
材料科学
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绿色化学
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电化学
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DOI
高影响因子
RSC Advances
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2019
·Vol. 9
·期 52
·30249-30258
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IF 3.049
Feng Yang,Yu Liu,Tong Liu,Shuan Liu,Haichao Zhao
In this work, a water-soluble host–guest complex containing carboxymethylated beta-cyclodextrin (CM-β-CD) and an aniline trimer (AT) was synthesized. The application of AT–CM-β-CD as an inhibitor for alleviating the corrosion of Q235 carbon steel in 1 M HCl solution was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Results showed that the inhibition efficiency was significantly increased in the presence of AT–CM-β-CD, and the inhibition efficiency was up to 99.2% when the concentration of AT–CM-β-CD was 250 mg L−1. Field emission scanning electron microscopy (SEM) and laser scanning confocal microscopy (LSCM) confirmed that the corrosion inhibitor had excellent corrosion inhibition effects due to the formation of an adsorption film on the surface of Q235 carbon steel. According to the data extracted from the Langmuir adsorption model, AT–CM-β-CD absorption involves both physisorption and chemisorption.
研究领域:
材料科学
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电化学
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腐蚀与防护
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产品关联
DOI
PubMed
高影响因子
RSC Advances
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2021
·Vol. 11
·期 35
·21607-21621
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IF 3.361
Mingjun Cui,Xia Li
Novel nitrogen and sulfur co-doped carbon dots (N,S-CDs) were synthesized via a hydrothermal procedure using citric acid (CA) and thiourea (TU) as precursors, and the corresponding corrosion protection performance was first investigated for Q235 carbon steel in 1 M HCl solution. Experimental results indicated that N,S-CDs as mixed-type corrosion inhibitors could effectively prevent Q235 carbon steel from corrosion in 1 M HCl solution, and the corrosion inhibition efficiency was improved with the increase in N,S-CD concentration. The maximum value was achieved at 400 ppm of N,S-CDs at 25 °C, which was approximately 96.6%, 94.6% and 90.55%, according to the potentiodynamic polarization curves, EIS results and weight loss measurement, respectively. Additionally, with the temperature ranging from 25 to 55 °C, the inhibition efficiency obtained from the weight loss measurement was enhanced from 90.55% to 94.04%. Such superior inhibition effect was assigned to the physisorption and chemisorption of N,S-CDs on the Q235 carbon steel surface, which was also be confirmed by XPS analysis. The adsorption of N,S-CDs onto a steel substrate conformed to the Langmuir adsorption isotherm.
研究领域:
材料科学
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腐蚀与防护
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表面化学
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产品关联
DOI
PubMed
高影响因子
Sustainable Chemistry and Pharmacy
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2021
·
IF 4.508
Jingbao Wang,Jing Jing,Li Feng,Hailin Zhu,Zhiyong Hu,Xuemei Ma
The corrosion inhibition behavior and adsorption mechanism of three novel synthetic surfactants in 1 M HCl solution on carbon steel were investigated. The PP results confirmed that all the synthetic surfactants behave as mixed-type inhibitors, while the EIS results validated the existence of a protective layer by the adsorption of inhibitor molecules on the carbon surface. T 3 was observed to offer the highest inhibition efficiency ( η w , 96.28%) at 1 mM by the static weight loss measurements due to two different hydrophobic chains which form a more compact film with the crosswise arrangement. SEM/EDS and XPS results revealed the formation of the surfactants film on the carbon steel surface. Molecular dynamics simulation (MD) was further executed to determine the adsorption mechanism in molecular level insights. In addition, a linear correlation between surface activity ( γ ) and corrosion inhibition efficiency ( η w ) was verified. The adsorption of the prepared surfactants followed the Freundlich isotherm at different concentration ranges. Moreover, the bilayer/multilayer adsorption mechanism was also proposed and confirmed by experimental, adsorption isotherm studies and MD. Hence, both MD simulations and experimental results revealed the analogous inhibition with the order follows: T 3 > T 2 > T 1 .
研究领域:
材料科学
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腐蚀工程
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表面化学
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产品关联
DOI
高影响因子
International Journal of Electrochemical Science
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2023
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IF 1.5
Fengshuang Han,Zhili Gong,Rui Wang,Sufang Dang
In this manuscript, the ability of (5-Benzoyl-1H-benzimidazol-2-yl) carbamicacidmethylester (mebendazole, MBD) as an inhibitor of corrosion on 5Cr pipeline steel in HCl medium was explored. Corresponding electrochemical tests, immersion tests and other experiments were designed, and at the same time, the ability of mebendazole to inhibit corrosion of 5Cr steel in HCl medium was screened and proved by means of molecular weight simulation calculation analysis process, and its possible anticorrosion mechanism was also revealed. Electrochemical test results show that mebendazole can successfully prevent 5Cr steel from dissolving in HCl medium, and the inhibition efficiency is particularly significant with the increase of mebendazole content. According to the electrochemical impedance test, the highest corrosion inhibition efficiency ( η ) can reach 94.4 %. The results of immersion weight loss experiment are highly consistent with the electrochemical test data and SEM electron microscope morphology. From the theoretical calculation results, it can be found that under neutral conditions and protonated mebendazole molecules have lower energy gaps and higher dipole moments in solvated and unsolvated environments, and can Parallel adsorption on the metal surface, which also corresponds to its efficient corrosion inhibition performance. In addition, through comparison, it is found that the protonated mebendazole molecule under solvation conditions has the highest binding energy, that is, it is the easiest to interact with 5Cr steel and presents the best anti-corrosion performance.
研究领域:
材料科学
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电化学
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防腐蚀工程
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产品关联
DOI
高影响因子
LANGMUIR
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2021
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IF 3.882
Liang Pan,Guoxi Li,Zhaoyang Wang,Dongbao Liu,Weikang Zhu,Chunyi Tong,Rilong Zhu,Shilin Hu
To reduce the corrosion of Q235 steel, environment-friendly and efficient N-doped carbon dots (N-CDs) were synthesized using 4-amino salicylic acid (4-ASA) and l-histidine (l-His) as precursors. The corrosion inhibition behavior of N-CDs for Q235 steel in 1 M HCl solution was systematically investigated using a weight-loss experiment, an electrochemical test, and corrosion morphology. Results showed that N-CDs could effectively inhibit the corrosion of Q235 steel, and the inhibitory efficiency reached 93% at 50 mg L–1. Quantum chemistry and molecular dynamics were used to study the inhibition mechanism of N-CDs. The results demonstrated that N-CDs exhibited a strong adsorption force on metal and the adsorption process followed the Langmuir adsorption isotherm, indicating physical/chemical mixed adsorption.
研究领域:
材料科学
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环境科学
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电化学
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DOI
高影响因子
Surface Topography-Metrology and Properties
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2017
·Vol. 5
·期 4
·044001
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IF 0
Xiangyu Li,Yuwei Ye,Tong Liu,Wenru Zheng,Feng Yang,Haichao Zhao,Liping Wang
Novel quaternary ammonium cation containing tetraaniline (QATA) was successfully synthesized by condensation of amine-capped tetraaniline with 6-bromohexanoic acid, followed by quaternarization with triethylamine. The corrosion inhibition performance of QATA with their adsorption mechanisms for Q235 steel was studied in 1 M HCl solution by a series of methods such as weight loss measurements, potentiodynamic polarization, electrochemical impedance spectroscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and atomic force microscopy (AFM). The inhibition efficiency (IE%) increased with increasing concentrations of QATA, reaching a value up to 97.47% at a concentration of 150 mg l−1. Potentiodynamic polarization curves showed that the QATA affected both cathodic and anodic protection and was a mixed type inhibitor in 1 M HCl corrosive medium. Adsorption isotherm studies confirmed that the absorption of QATA on the Q235 steel surface in 1 M HCl solution obeyed Langmuir adsorption isotherm, and the adsorption process of corrosion inhibition on Q235 steel surface involved both the physical and chemical adsorption. The EDS analysis determined the adsorption of QATA molecules on the steel surface, the surface morphologies before and after immersion in 1 M HCl medium were also investigated by SEM and AFM.
研究领域:
材料科学
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腐蚀与防护
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电化学
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产品关联
DOI
CORROSION SCIENCE
·
2016
·
IF 5.154
Zhiyong Hu,Yanbin Meng,Xuemei Ma,Hailin Zhu,Jun Li,Chao Li,Duanlin Cao
Two benzothiazole derivatives, namely 2 - ( n -hexylamino)-4-(3′- N,N -dimethylamino-propyl)amino-6-(benzothiazol-2-yl)thio-1,3,5- s -triazine (BTC 6 T) and 2-( n -octylamino)-4-(3′- N,N -dimethylamino-propyl)amino-6-(benzothiazol-2-yl)thio-1,3,5- s -triazine (BTC 8 T), were synthesized to study their corrosion inhibiting effect against steel in a 1 M HCl solution. The corrosion inhibition efficiency was measured using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization , and weight loss methods. Both inhibitors offered extra stability and higher inhibition efficiencies again steel corrosion than previously reported benzothiazole family inhibitors. These inhibitors can be adsorbed onto surfaces by both physical and chemical means. Finally, quantum chemical parameters were calculated using the density functional theory method (DFT) and the correlation between the theoretical and experimental results are discussed.
研究领域:
腐蚀科学
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材料化学
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电化学
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理论化学
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表面科学
✓ 已验证
DOI
高影响因子
International Journal of Electrochemical Science
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2023
·
IF 1.5
Kangquan Qiao,Ying Zeng
The inhibition effect of Diantipyrylmethane (DAM) and its synergistic effect with potassium thiocyanate (KSCN) on mild steel corrosion in 1 M HCl solution were investigated by electrochemical methods, gravimetric analysis and scanning electron microscopy (SEM). The experiment results show that the inhibition efficiency increases with the concentration of DAM alone and increases further with the presence of 2 mM KSCN. The synergism parameters demonstrate that DAM cation has a significant synergistic effect with thiocyanate anion, which is agree with the corresponding thermodynamic and kinetic parameters. The results of quantum chemical calculation confirm that the dication structure of DAM molecule in acid medium plays a vital role during corrosion inhibition of mild steel.
研究领域:
电化学
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材料科学
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腐蚀与防护
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
·
IF 6.633
Xiaohan Jin,Jingbao Wang,Siyuan Zheng,Jianan Li,Xuemei Ma,Li Feng,Hailin Zhu,Zhiyong Hu
Three triazine-based surfactants with different hydrophobic chain lengths were synthesized and characterized, namely, 2-(n-Hexylamino)-4,6-bis (3-N, N-dimethylaminopropyl) amino-1,3,5-triazine, 2-(n-Octylamino)-4,6-bis (3-N, N-dimethylaminopropyl) amino-1,3,5-triazine and 2-(n-n-Dodecylamino)-4,6-bis (3-N, N-dimethylaminopropyl) amino-1,3,5-triazine, labelled C 6 , C 8 and C 12 respectively. The chemical structure was confirmed by FTIR and 1 H NMR. The surface activity was evaluated by surface tension. C 12 had a lower critical micelle concentration (CMC) value (0.5 mM) than C 6 and C 8 , which suggested that a lower concentration was required to reach interfacial adsorption saturation, representing better inhibition performance. The corrosion inhibition of surfactants for 45 # carbon steel in 1.0 M HCl was studied by static weight loss measurement, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization. Inhibition results showed that C 12 was better than C 6 and C 8 with the maximum inhibition efficiency of 96% at 0.1 mM. The surface analysis had given a clear view of the mechanism of surfactants in inhibiting the corrosion process. Moreover, the Freundlich adsorption isotherm was the best description for the adsorption process of surfactants on 45 # carbon steel in 1.0 M HCl.
研究领域:
材料科学
·
腐蚀与防护
·
表面化学
✓ 已验证
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2026
·
IF 6.9
Yulin Zhou,Shuang Tan,Qiangqiang Liu,Xingwen Zheng,Bochuan Tan,Riadh Marzouki
Background Q235 steel is susceptible to severe corrosion during the pickling process, especially in hydrochloric acid media, which not only shortens the service life of the equipment, but also may cause safety hazards and environmental pollution. Methods : A bis-triazole Schiff base carboxylic acid (BTSCA) was synthesized, named the 5-((4-(4H-1,2,4-triazol-4-yl) benzylidene) amino)-1H-1,2,4-triazole-3-carboxylic acid. The present study investigates the inhibitory performance of Q235 steel in a 1 M HCl solution containing BTSCA. The experimental methods adopted were weight loss method and electrochemical method. Significant findings : The results show that BTSCA has a good inhibitory efficiency on Q235 steel in 1 M HCl solution, which can reach 98.98%. Kinetic and thermodynamic analyses explained inhibitory mechanism of the compound, and the results showed that the adsorption behavior was in accordance with the Langmuir isotherm. The surface morphology of Q235 steel was characterized by scanning electron microscope (SEM) and atomic force microscope (AFM). Density functional theory (DFT) was used to analyze the inhibitory mechanism of BTSCA. Combined with molecular dynamics simulation (MD), the most stable configuration, adsorption sites and adsorption energy of BTSCA on the steel surface were determined.
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DOI
高影响因子
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