CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
·
2024
·
IF 1.5
Li Xu,Hualiang Huang
In the article, a silane film on the surface of Q235 steel was successfully prepared using 3-mercaptopropyltrimethoxysilane. The film-forming mechanism and anti-corrosion properties of the silane film on Q235 steel in a 3.5 wt.% NaCl solution were investigated using electrochemical measurements, surface analysis and theoretical calculations. The results indicated that the prepared silane film could effectively suppress the corrosion of Q235 steel, and its highest corrosion inhibition efficiency was 98.64% when the film was cured at 140°C for 60 minutes. That could be explained that the silane film was predominantly bonded to the steel surface through forming Si-O-Fe bond, accompanying a crosslinked Si-O-Si network structure formed during the curing process, which effectively reduced the dissolution of iron, thereby significantly enhancing the corrosion resistance of Q235 steel. In addition, the silane film possessed excellent hydrophobic properties caused by the long-chain alkyl group, preventing the penetration of corrosive medium.
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PROGRESS IN ORGANIC COATINGS
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2026
·
IF 7.9
Zhao-Xu Chen,Xin-Ran Li,Hao Li,Run-Chao Zheng,Xian-Ze Meng,Lian-Kui Wu,Fa-He Cao
Polyurea coating offers robust protection against weathering and corrosion, yet the limited wear resistance remains a bottleneck for long-term service in marine environments. In this study, a high-performance polyurea coating incorporating APTES-modified Al 2 O 3 nanoparticles was developed on Q235 steel. The surface-grafted amino groups not only improve the compatibility between Al 2 O 3 nanoparticles and polymer matrix but also facilitate the establishment of strong interfacial bonds within the polyurea network, thereby significantly bolstering the coating's mechanical properties and environmental durability. Compared to pure polyurea, the composite coating achieves a 41.1% lower mass loss under a 1000 g load and 2000 wear cycles, demonstrating reliable wear resistance. Moreover, the nanoparticles enhance the structural compactness of the coating and increase the tortuosity of the diffusion pathways for corrosive mediums, leading to a remarkable enhancement in corrosion protection. After immersion in 3.5 wt% NaCl solution for 120 days, the low-frequency impedance modulus (| Z | f =0.01Hz ) of the composite polyurea coating remains above 10 11 Ω·cm 2 . Meanwhile, the composite polyurea coating exhibits superior resistance to UV aging. These findings demonstrate the great potential of this nano-alumina-reinforced polyurea composite for application in high-performance protective coatings.
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高影响因子
Arabian Journal of Chemistry
·
2020
·
IF 4.762
Liping Xiong,Pengjie Wang,Zhongyi He,Qi Chen,Jibin Pu,Renhui Zhang
In this work, two new imidazoline derivatives were successfully synthesized, and the molecular structure of which has been proved by IR, Raman and elemental analysis . The corrosion inhibition performance of the imidazoline derivatives for carbon steel in 3.5 wt% sodium chloride simulation-concrete-pore solution was investigated. The weight loss and electrochemical test results exhibited that compared to the blank systems, the corrosion inhibition efficiency was effectively enhanced with increasing the concentrations of two imidazoline derivatives, the maximum corrosion inhibition efficiency of weight-loss test is 96.02%. The inhibition efficiency of Electrochemical impedance spectroscopy and Potentiodynamic polarization were 95.95% and 90.69%. EDS analysis confirmed that two new imidazoline derivatives could effectively adsorb on the Q235 steel surface, which was further supported by density functional theory (DFT) and molecular dynamics simulations . This work confirmed that two new imidazoline derivatives exhibited a potential application in engineering and equipment.
研究领域:
材料科学
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电化学
·
计算化学
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高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2026
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IF 4.9
Yupei Chai,Lidan Cao,Yingxing Zhang,Junhong Wang,Duo Zhang,Cunfang Liu
A smart anti-corrosion and self-healing coating BTA@MSNs/g-C 3 N 4 @PDA was prepared base on mesoporous silica nanoparticles (MSNs) and graphite-phase carbon nitride (g-C 3 N 4 ) composites as nano-containers and loaded the corrosion inhibitor benzotriazole (BTA), as well as wrapped polydopamine (PDA). The structure and properties of the composites were characterized by SEM, TEM, EDS, FT-IR, XPS, XRD and N 2 physical adsorption. The release behaviors of BTA were tested by UV–Vis spectroscopy. Then these prepared materials were mixed to epoxy resin E-51 (EP) and cured to obtaining three protective coatings of MSNs/g-C 3 N 4 -EP, BTA@MSNs/g-C 3 N 4 -EP, and BTA@MSNs/g-C 3 N 4 @PDA-EP. These coatings were used as working electrodes to investigate their anti-corrosion and self-healing properties via electrochemical impedance spectroscopy (EIS), salt spray test, SEM and EDS. Test results indicate that the smart coatings presented better corrosion-resistant and self-healing performance. After being soaked in 3.5 % NaCl solution for 30 days, the |Z| 0.01Hz value of the coating BTA@MSNs/g-C 3 N 4 @PDA-EP could still reached to 10 6 , two orders of magnitude higher than that of the coating MSNs/g-C 3 N 4 -EP. Furthermore, the self-healing mechanism of these coatings was also better explored. In summary, this study will provide feasible paths and guidance for the preparation of intelligent anticorrosive self-healing new materials.
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International Journal of Green Energy
·
2026
·
IF 3.1
Wei Liu,Caihang Liang,Ronghui Qi
Q235 carbon steel is widely used in seawater cooling systems but suffers severe corrosion in high-salinity environments. Conventional inhibitors are limited by poor water solubility and environmental risks. Here, we synthesized glyoxal-modified guanine (GGO) by introducing hydrophilic – OH groups and coordination-active (C = N/C – N) sites, increasing aqueous solubility from < 1 mg/L (guanine) to 3.289 g/L. Electrochemical and weight loss tests showed that GGO achieved a corrosion inhibition efficiency of 96.15% at 200 ppm in 3.5 wt.% NaCl, greatly surpassing unmodified guanine. SEM, contact angle, and 3D profilometry revealed that GGO formed a compact, hydrophobic protective film, significantly reducing corrosion pits and surface roughness. Adsorption isotherms and thermodynamic analysis indicated that GGO adsorption involves both chemisorption and physisorption, with a more negative Gibbs free energy than guanine. Quantum chemical calculations and molecular dynamics simulations demonstrated that polar functional groups promote strong adsorption and coordination with the steel surface, blocking chloride attack and stabilizing the inhibitor layer. XPS confirmed Fe – N coordination bonds and organic species in the protective film. This study provides a high-efficiency, eco-friendly corrosion inhibition strategy for Q235 carbon steel in saline environments and guides the rational design of green inhibitors for industrial applications.
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CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Haolin Liu,Zeming Zhu,Jianfeng Hu,Xin Lai,Jinqing Qu
A novel chitosan Schiff base derivative (CVZ) doped with ZnO nanoparticles (ZnONPs) was synthesized and investigated. The corrosion protection performance was evaluated via electrochemical measurements and surface analyses . Compared to the undoped derivative (CV), the results show that the corrosion inhibition efficiency of CVZ sharply increases from 67.7 % to 99.6 %. The surface mean roughness decreases from 1.2350 μm of the blank sample to 0.7004 μm with CVZ protection. Additionally, the inhibition mechanism of the inhibitor and the synergistic effect between CV and ZnONPs were discussed. The strategy of organic/inorganic hybrid and the synergistic effect can inspire the development of chitosan as a green corrosion inhibitor with low concentration and high efficiency.
研究领域:
材料科学
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腐蚀工程
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纳米技术
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绿色化学
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高影响因子
NANOTECHNOLOGY
·
2020
·Vol. 31
·期 30
·305704
·
IF 3.551
Hong Li,Weizhe Song,Xingqiang Cui,Yanhui Li,Baorong Hou,Xiaoping Zhang,Yuqi Wang,Lianjun Cheng,Pengfei Zhang,Junru Li
AgInS2 nanoparticle and graphene nanosheet co-sensitized anatase TiO2 nanotube array films were fabricated by a combination of hydrothermal reaction and electrochemical anodization on titanium sheets. The results showed that the co-sensitization of AgInS2 nanoparticles and graphene nanosheets extended the photoresponse of TiO2 nanotubes into the visible-light region, and improved the photogenerated charge separation and transfer capability. The photocurrent density of the AgInS2/graphene/TiO2 composites (about 4.0 mA cm−2) was 20 times that of bare TiO2 (only 0.2 mA cm−2) under visible-light illumination. The potential negative shift value of AgInS2/graphene/TiO2 composites was up to 0.68 V versus saturated calomel electrode. The AgInS2/graphene/TiO2 composites can provide Q235 carbon steel with highly efficient photocathodic protection under visible-light illumination.
研究领域:
材料科学
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电化学
·
腐蚀防护
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PubMed
高影响因子
Materials
·
2021
·Vol. 14
·期 10
·2629
·
IF 3.623
Shimin Chen,Bo Li,Rengui Xiao,Huanhu Luo,Siwu Yu,Jinghang He,Xia Liao
In this work, a ternary TiO2/Graphene oxide/Polyaniline (TiO2/GO/PANI) nanocomposite was synthesized by in situ oxidation and use as a filler on epoxy resin (TiO2/GO/PANI/EP), a bifunctional in situ protective coating has been developed and reinforced the Q235 carbon steel protection against corrosion. The structure and optical properties of the obtained composites are characterized by XRD, FTIR, and UV–vis. Compared to bare TiO2and bare Q235, the TiO2/GO/PANI/EP coating exhibited prominent photoelectrochemical properties, such as the photocurrent density increased 0.06 A/cm2and the corrosion potential shifted from −651 mV to −851 mV, respectively. The results show that the TiO2/GO/PANI nanocomposite has an extended light absorption range and the effective separation of electron-hole pairs improves the photoelectrochemical performance, and also provides cathodic protection to Q235 steel under dark conditions. The TiO2/GO/PANI/EP coating can isolate the Q235 steel from the external corrosive environment, and may generally be regarded a useful protective barrier coating to metallic materials. When the TiO2/GO/PANI composite is dispersed in the EP, the compactness of the coating is improved and the protective barrier effect is enhanced.Keywords:TiO2/GO/PANI nanocomposite;epoxy resin;barrier protection;photocathode protection
研究领域:
材料科学
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腐蚀工程
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纳米技术
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DOI
PubMed
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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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
·
IF 4.539
Yuanzhen Liang,Changyang Li,Peng Wang,Dun Zhang
Improving the mechanical stability and oil stability of slippery liquid infused porous surface (SLIPS) is very urgent to its long-term application in preventing bacteria settlement and mitigating the following microbiologically influenced corrosion (MIC) for metallic material in marine environment. Herein, a robust superhydrophobic surface was first fabricated through spraying SiO 2 nanoparticles on the natural resin shellac adhesive. The superhydrophobic surface could retain superhydrophobicity after 160 sandpaper abrasion cycles (abrasive length of 64 m), which was attributed to the strong binding force between SiO 2 nanoparticles and shellac via hydrogen bonding . Thus, a robust SLIPS was fabricated through infusing lubricant oil into abrasion-resistant superhydrophobic surface. And the fabricated slippery surface exhibited stable slippery performance after spin treatment and damaged by a scratch. Furthermore, scanning kelvin probe (SKP) test verified the scratch was able to heal through the self-healing performance of lubricant oil. Finally, the bacterial settlement and electrochemical experiment results indicated the SLIPS could effectively mitigate sulfate reducing bacteria (SRB) settlement and following MIC after immersing in SRB solution for 14 days. This facile method provides a guidance to fabricate robust slippery surface for its long term application.
研究领域:
材料科学
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腐蚀与防护
·
微生物学
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高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2023
·Vol. 64
·期 2
·779-787
·
IF 3.2
Xiang Zhang,Zhenggang Xiao
Organic anticorrosion coatings (OACs) are the most effective, economical, and environmentally friendly protection strategy for metals. However, the traditional OACs usually inevitably suffer mechanical cracks during their service life. If not repaired in time, the resultant cracks in OACs will result in irreparable corrosion of the metal substrate. More detrimentally, these microcracks are not easily detectable at the initial stage. If OACs can autonomously heal their damage at the initial stage, the microcracks will be repaired in time and the metal substrate will be protected well. Thus, giving OACs the self-healing capability is a promising strategy for metal protection. Herein, an autonomously self-healing TiO 2 -reinforced silicone polyurea (SPU- g -TiO 2 ) elastomer was successfully designed as anticorrosion coating for Q235 carbon steel (QCS) protection. The SPU- g -TiO 2 elastomer matrix exhibited excellent stretchability with a maximum strain of 3826.72% and fast self-healing ability with an outstanding self-healing efficiency of 98.69% for 6 h without any external stimulus at room temperature. The QCS coated with SPU- g -TiO 2 showed excellent damage resistance and good anticorrosive ability, and it can self-heal the microcracks generated in its coating in time to prevent corrosive media corroding the internal mental substrate. This work has a positive guiding significance for the development of functional OACs to improve their protection for metallic materials. Highlights A bionic smart self-healing SPU- g -TiO 2 coating was successfully synthesized. The mechanical and self-healing properties are balanced using nanoparticles. The coating features excellent self-healing capability and stretchability. Q235 steel coated with SPU- g -TiO 2 shows good anticorrosive ability.
研究领域:
材料科学
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腐蚀工程
·
聚合物化学
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2026
·
IF 4.6
Ying Yan,Qianwen Zhang,Yuxin Shu,Zeyu Zuo,Shuoyue Li,Mama Embalo Samba,Wenxuan Xu,Lankun Cai
Photocathodic protection (PCP) provides a sustainable strategy for corrosion control, but conventional TiO 2 /CdS photoanodes remain limited by inefficient interfacial charge transfer and CdS photocorrosion. Herein, TiO 2 /Mn-CdS composite photoanodes were fabricated via anodic oxidation combined with the successive ionic layer adsorption and reaction (SILAR) method for the photocathodic protection of Q235 carbon steel (Q235 CS). The optimized photoanode, prepared using a 0.04 M Mn precursor solution (denoted as TiO 2 /Mn-CdS-0.04), exhibited a photocurrent density of 1590 μA·cm −2 . When coupled with Q235 CS, it induced a cathodic shift of the open-circuit potential to −1.30 V (vs. SCE) under visible-light irradiation. During a 24-day stability test, the photocurrent density remained above 1000 μA·cm −2 and the coupled potential remained approximately −0.95 V (vs. SCE). First-principles calculations indicated that Mn-induced electronic states facilitated carrier separation and interfacial charge transfer, suggesting that Mn incorporation promotes cascade charge transfer within the composite photoanode. This study demonstrates the potential of TiO 2 /Mn-CdS as a non-noble-metal photoanode for durable photocathodic protection of Q235 CS.
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