REVIEWS ON ADVANCED MATERIALS SCIENCE
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2022
·Vol. 61
·期 1
·186-194
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IF 5.028
Yunfeng Liu,Lili Chen,Yongfan Tang,Xingde Zhang,Zhengsong Qiu
Aiming at the current situation that the existing acidizing corrosion inhibitors are difficult to apply in high temperature, high concentration acid, and other complex conditions, this article uses nano-SiO 2 as the core and preferably functional monomers to synthesize nano-SiO 2 @octadecylbisimidazoline quaternary ammonium salt (nano-SiO 2 @OBQA). Analytical methods such as nuclear magnetic resonance, infrared, and scanning electron microscopy were used for characterization. The corrosion inhibition performance of the N80 steel sheet by nano-SiO 2 @OBQA in 20% concentrated hydrochloric acid was studied using the high-temperature corrosion testing machine and adsorption isotherm model combined with quantum chemistry calculations to explore its mechanism of action. The results show that nano-SiO 2 @OBQA has good high-temperature resistance. When the temperature is 180℃ and the dosage of nano-SiO 2 @OBQA is 4%, the corrosion inhibition rate is 61.42 g·m −2 ·h −1 . Studies have shown that the adsorption of nano-SiO 2 @OBQA on the surface of the N80 steel sheet follows the Langmuir isotherm adsorption model, which is spontaneous chemical adsorption.
研究领域:
材料科学
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化学工程
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腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2024
·Vol. 59
·期 8
·3604-3623
·
IF 3.5
Wang Xintong,Yang Jiang,Chen Xu,Wang Yefei,Yang Zhen,Ding Wei
To mitigate CO 2 corrosion in the oil and gas industry, a green non-toxic β -N-butyl amino propionic acid (BAA) was synthesized using a low-energy and zero-waste one-pot method. The effectiveness of BAA as a corrosion inhibitor for N80 steel in CO 2 -saturated brine water was investigated through experimental measurements and theoretical modeling. The results demonstrate that BAA functions as an effective mixed-type corrosion inhibitor. BAA molecules interact with F (1 1 0) with the–COO– and–NH 2 + -moiety in the hydrophilic head group, and the hydrophobic groups are adsorbed on the steel surface in a configuration 45° away from the steel surface. The adsorption is a mixture of physical and chemical processes and is consistent with the Langmuir isothermal adsorption formula. When the concentration is greater than 50 ppm, a complete corrosion inhibitor film with high hydrophobicity can be adsorbed on the steel surface, which can effectively impede the diffusion of corrosive species from brine to the steel surface. Graphical abstract
研究领域:
腐蚀科学
·
材料工程
·
环境化学
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石油天然气工业
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Xiao-Jun Feng,Ning Yan,Yanqun Wang,Ping Mei,Wu Chen,Lilin Lu,Lu Lai
Twelve kinds of 8-hydroxyquinoline derivatives were synthesized and characterized. The weight loss method was used to evaluate their inhibition efficiencies (IEs) in a 1.0 M HCl solution at 333 K. The results showed that the alkyl chain length, heteroatoms (S, N, and O), and number of benzene rings significantly affect the IE. Herein, the IE of 5-[(dodecylthio)methyl]-8-quinolinol reached 98.71%. Meanwhile, the potentiodynamic polarization results indicated that all 8-hydroxyquinoline derivatives were mixed-type inhibitors. Electrochemical impedance spectroscopy results revealed that 8-hydroxyquinoline derivatives can increase polarization resistance, supporting their adsorption on the N80 steel surface. Moreover, according to density functional theory (DFT), the frontier orbital distribution and quantum chemical parameters (EHOMO, ELUMO, dipole moment μ, etc.) were calculated, and the results confirmed that the substituents of protonated 8-hydroxyquinoline derivatives significantly influenced the frontier orbital distribution. Molecular dynamics simulation illustrated that all protonated 8-hydroxyquinoline derivatives were adsorbed parallel to the Fe(110) surface, and the interaction energy (Eint) evidenced that the molecular size would affect their strength of adsorption on the Fe(110) surface. The linear and nonlinear quantitative structure–activity relationship models were established by linear regression (LR) methods and BP neural networks (NN), respectively. The LR model was established by using Eint and μ, and the coefficient of determination (R2) was 0.934. In addition, the nonlinear NN model was obtained according to IE and all parameters (DFT parameters and Eint). Then, the two calculation inhibition efficiencies (IEcal) were obtained from the LR and NN models, and the R2 values of the linear correlation between the IEcal and the experimental IE were 0.940 and 0.951, respectively. In addition, the IE of the tested inhibitor was 51.86% and the IEcal values predicted by the LR and NN models were 52.68% and 53.06%, respectively. Our results demonstrate that both the LR and NN models have good fits and predictive ability.
研究领域:
腐蚀科学
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计算化学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Coatings
·
2022
·Vol. 12
·期 12
·1975
·
IF 3.236
Shoumin Sun,Yang Li,Kejing Gao,Li Cheng,Xue Yang,Ruiquan Liao
In the process of petroleum exploitation, in order to effectively inhibit the corrosion damage of acid to metal equipment. Mannich base corrosion inhibitors are generally added to inhibit the corrosion damage of acid. In order to enhance the solubility of Mannich base corrosion inhibitor. This paper intends to introduce hydrophilic groups to enhance the solubility of the Mannich base corrosion inhibitor. In this paper, two efficient corrosion inhibitors 3-(2-hydroxyethylamino)-1-phenylpropan-1-one (MY1) and 3-(2-aminoethylamino)-1-phenylpropan-1-one (MY2), were synthesized based on the Mannich reaction, using formaldehyde, acetophenone and ethanolamine/ethylenediamine as reaction raw materials. The corrosion inhibition performance of the inhibitor on N80 steel in 15% (mass fraction) hydrochloric acid solution was studied by means of the static weight loss method, electrochemical test and optical contact angle analysis. It could be seen from the static weight loss method that the corrosion rate in the hydrochloric acid solution before and after adding 0.7% (mass fraction) corrosion inhibitor concentration decreased from 129.39 g·m−2·h−1to 1.45 g·m−2·h−1and 2.79 g·m−2·h−1, respectively. The corrosion inhibition rate could reach 98%, indicating that both inhibitors had good corrosion inhibition performance, and the corrosion inhibition effect of MY1 was better than that of MY2. It was found from the electrochemical tests that the two inhibitors were mixed corrosion inhibitors mainly inhibiting the anodic reaction, and both inhibitors belonged to spontaneous adsorption, and their adsorption behaviors followed the Langmuir adsorption isotherm. In addition, the surface of N80 steel was characterized by SEM, EDS elemental mapping and contact angle measurement. The results show that a dense hydrophobic film is formed on the surface of the steel sheet after the addition of a corrosion inhibitor, which prevents corrosion.
研究领域:
材料科学
·
腐蚀与防护
·
石油工程
✓ 已验证
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Jinxue Song,Yi He,Bo Liu,Ruxia Song,Zhifei Zhang,Hongjie Li,Huilian Zhou,Zhiyuan Li,Xinyu Cheng,Jiamin Zhong,Liping Yan
This study developed a novel Ni B/Ca-CNFs/MWCNTs/h-BN coating on N80 steel. The disadvantages of hexagonal boron nitride (h-BN) were improved by creatively combining multi-walled carbon nanotubes (MWCNTs), cellulose nanofibers (CNFs), and calcium ion cross-linking strategies. This led to the creation of Ca-CNFs/MWCNTs/h-BN hybrids, which were then doped into Ni B coatings by varying pulse current densities. The results demonstrated that the surface morphology , mechanical properties, and toughness of the composite coating are all influenced by the Ca-CNFs/MWCNTs/h-BN doped at various current densities. Meanwhile, the Ni B/Ca-CNFs/MWCNTs/h-BN (4 A/dm 2 ) coating has the greatest microhardness (902.42 Hv) and the smallest friction coefficient (0.487) under reciprocating dry sliding friction conditions of Si 3 N 4 friction balls. In addition, the results of nanoindentation and tensile tests show that the elastic modulus of Ni B/Ca-CNFs/MWCNTs/h-BN (4 A/dm 2 ) composite coating is 194.096 MPa and the tensile elongation is 12.2 %.
研究领域:
材料科学
·
表面工程
·
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）