Article
Chemistry, Multidisciplinary
Anil Kumar, Chandan Das
Summary: Metal corrosion has become a growing concern in local and industrial scales recently, affecting conventional production. The development of a novel and ecofriendly corrosion inhibitor using chayote fruit extract shows high efficiency, environmental friendliness, and economic benefits. The chayote extract adsorbs onto the metal surface, forming a protective layer that effectively inhibits corrosion.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Construction & Building Technology
Yong Wen, Xinmei Ma, Yuxin Cai, Lang Liu, Lina Zhou, Qing-feng Liu
Summary: The inhibition potency of thiamine (VB1), nicotinic acid (VB3), pyridoxine (VB6), and ascorbic acid (VC) against reinforcement corrosion in chloride environments was studied. Quantum chemical calculation was used to reveal the corrosion inhibition mechanism. The results showed that all four vitamins could effectively reduce the risk of chloride-induced reinforcement corrosion, with VB6 exhibiting the strongest corrosion inhibition effect. Each vitamin had a specific concentration for achieving optimum corrosion inhibition efficiency.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Rajni Narang, Priya Vashishth, Himanshi Bairagi, Sudhish K. Shukla, Bindu Mangla
Summary: The corrosive degradation of mild steel in 0.5 M sulphuric acid was inhibited by ethambutol hydrochloride drug and found to be effective. The inhibitive action increased with higher drug concentration but decreased with escalating temperature. The drug showed its maximum inhibition efficiency at 1000 ppm and 313 K. The adsorption of the drug on the metal surface followed Langmuir adsorption isotherm and EIS analysis confirmed its presence.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Priya Kesari, G. Udayabhanu, Arpita Roy, Sagar Pal
Summary: Green biopolymeric materials and their hybrid nanocomposites were investigated for corrosion prevention of mild steel in 15% HCl. The results showed that the SA-g-PMMA/TiO2 exhibited the highest inhibition efficiency of 97.28%, followed by SA-g-PMMA/Fe3O4 with 96.82% efficiency, while unmodified sodium alginate only showed 84.74% efficiency. The inhibition efficiency decreased with increasing temperature, and the inhibitors followed Langmuir adsorption isotherm. The nanocomposites formed a better protective adsorption layer on the exposed metallic surface compared to sodium alginate alone, as observed from FE-SEM and AFM analysis. The elemental composition of the adsorbed film was determined using XPS technique. Density Functional Theory (DFT) results supported the experimental outcomes.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Analytical
Eugene B. Caldona, Min Zhang, Guangchao Liang, T. Keith Hollis, Charles Edwin Webster, Dennis W. Smith, David O. Wipf
Summary: This study demonstrated the inhibition effect of triazole- and imidazole-based compounds on the corrosion of mild steel in 1.0 M HCl solution through electrochemical measurements. Among these compounds, the triazole-based compound exhibited the highest inhibitive performance at a concentration of 850 μM, showing an efficiency of over 90%. The results were supported by microscopy analyses and x-ray diffraction, confirming the protective inhibitor layer formation on the metal surface.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Electrochemistry
R. S. Abdel Hameed, Gh. M. S. Aleid, D. Mohammad, Magd M. Badr, Bader Huwaimel, M. Sh. Suliman, Freah Alshammary, M. Abdallah
Summary: There is a high demand for environmentally friendly corrosion inhibitors for metals and alloys. In this study, fresh spinach extract was used as a green corrosion inhibitor for carbon steel in a hydrochloric acid corrosive environment. The effectiveness of the extract at different concentrations was evaluated, and it was found that the inhibition ability decreases with increasing temperature and increases with higher extract concentration.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Agricultural Engineering
Shan Wan, Tian Zhang, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, kapok leaves extract and iodide ions were used as environmentally-friendly corrosion inhibitors for carbon steel in sulfuric acid solution. The results showed that these inhibitors exhibited excellent inhibition performance with high efficiency even after long-term immersion.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Biotechnology & Applied Microbiology
Shan Wan, Huikai Chen, Tian Zhang, Bokai Liao, Xingpeng Guo
Summary: The parsley extract (PLE) was used as a corrosion inhibitor in combination with iodide, exhibiting an optimal corrosion inhibition efficiency of 99%. The combined inhibitor showed a favorable long-term corrosion inhibition effect, with over 90% inhibition efficiency maintained after 144 hours. The introduction of iodide led to a higher negative charge amount on the carbon steel surface, facilitating the interaction between the corrosion inhibitor and Fe atoms.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Karthick Subbiah, Han-Seung Lee, Soumen Mandal, Taejoon Park
Summary: The study focuses on using conifer cone as a novel corrosion inhibitor to reduce the corrosion of steel rebars in chloride-containing solutions. Experimental results show that ECC possesses a high corrosion inhibition efficiency and initially adsorbs on the rebar surface through physisorption before transitioning to chemisorption. The interaction between ECC and rebar molecules leads to the suppression of metal dissolution in corrosive chloride medium.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Construction & Building Technology
Lei Cui, Meiyan Hang, Huanghuang Huang, Xiaojian Gao
Summary: The addition of organic or inorganic corrosion inhibitors can reduce the corrosion rate of steel bars in chloride solution. Compared to single component inhibitors, the multi-component inhibitor significantly restrains the corrosion of steel bars in simulated pore solution. The adsorption film formed by the multi-component corrosion inhibitor on the surface of steel bars can significantly reinforce the passive film through physical or chemical processes.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Shuai Ren, Xi Wang, David Young, Maalek Mohamed -Said, Bernardo Santos, Yi He, Marc Singer
Summary: A thick cementite skeleton exposed on a ferritic-pearlitic C1018 steel surface significantly reduced inhibition efficiency after pre-corrosion, while this effect was insignificant for a lower carbon X65 steel with dispersed cementite microstructure, as only a small amount of cementite remained on its surface after pre-corrosion. Normalizing the increased cathodic area in the presence of residual cementite back to the original area inhibited both anodic and cathodic reactions to the same extent as on bare steel with a sufficient inhibitor concentration. However, the detrimental effect of cementite cannot be completely eliminated due to its galvanic coupling effect.
Article
Chemistry, Multidisciplinary
Jiaxin Wen, Xin Zhang, Jinlong Chen, Ting Liu, Yi Zhou, Lingjie Li
Summary: In this study, a corrosion inhibitor called PHET was synthesized and its inhibitive effect on mild steel in acidic solution was investigated. The optimal concentration of PHET in 1.0 M HCl solution was found to be 400 mg/L, with an inhibitive efficiency of 93%. PHET adsorbed on the surface of mild steel by forming complexes with ferrous ions, forming a protective film and exhibiting excellent corrosion inhibition performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
D. Thirumoolan, K. Anver Basha, S. P. Sakthinathan, T. Siva
Summary: The copolymer of benzoylphenyl methacrylate and methoxyethyl methacrylate was synthesized and its thermal stability and corrosion protection efficiency on mild steel were investigated. The electrochemical results confirmed the good protective effect of the copolymer coating on the metal surface.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
R. Idouhli, A. Oukhrib, M. Khadiri, O. Zakir, A. Aityoub, A. Abouelfida, A. Benharref, A. Benyaich
Summary: The corrosion inhibition of steel S300 in hydrochloric acid by different families of Senecio anteuphorbium L. was investigated, with the main component being essential oil containing sesquiterpenes with good inhibition efficiency. The inhibition efficiency of the tested groups ranges from 75% to 90%, indicating a synergistic effect.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Multidisciplinary
Izuchukwu K. Nwokolo, Hongwei Shi, Alexander I. Ikeuba, Ningjie Gao, Jiwen Li, Sharjeel Ahmed, Fuchun Liu
Summary: The study successfully synthesized ZnMOF-BTA with excellent corrosion inhibition properties, showing a highly effective corrosion inhibition effect on carbon steel in strong acid environment, providing new insights and directions for the research of novel corrosion inhibitors.
