Article
Chemistry, Multidisciplinary
Claudia Alejandra Grillo, Nelson Rodriguez Arroyo, Mauro Jonathan Banera, Maria Virginia Mirifico
Summary: The study reports the corrosion inhibitory ability and toxicity on mammalian cells of two compounds, TANIS and TDMA, for the first time. The results demonstrate their effectiveness as mild steel corrosion inhibitors in acid media, but also highlight the cytotoxicity of both compounds. Precautions should be taken when handling these inhibitors, and further research is needed to assess their safety and potential for industrial use.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Engineering, Chemical
Nuha Wazzan, I. B. Obot, Taghreed M. Fagieh
Summary: The effect of molecular structure on the corrosion inhibition performance of three triazole derivatives for C1020 steel and pure copper in hydrochloric acid was investigated. The results showed that the order of inhibition efficiencies was influenced by the type of metal, molecular structure, and immersion time. The theoretical simulations provided insights on the adsorption process and active sites.
Article
Agricultural Engineering
Q. H. Zhang, N. Xua
Summary: During oil and gas exploitation, the corrosion of carbon steel pipes leads to significant economic loss, casualties, environmental pollution, and resource waste. Developing highly efficient and stable corrosion inhibitors is crucial for protecting carbon steel in this industry. L-cysteine is commonly found in plants but has low inhibitive efficiency, so chemical modification is used to enhance its effectiveness. In this study, two synthetic amino acid derivatives, namely PTCA and TTCA, were investigated as corrosion inhibitors for carbon steel in a CO2-containing environment. Electrochemical experiments, surface techniques, and theoretical calculations were conducted to evaluate the anti-corrosion property and inhibitive mechanism of these derivatives. The results showed that PTCA and TTCA exhibited high corrosion inhibition efficiencies at a concentration of 0.8 mM: PTCA (99.1%) and TTCA (99.3%). Theoretical calculations revealed that PTCA and TTCA adsorb onto the steel surface by forming Fe-O bonds. TTCA exhibited stronger adsorption and a more negative adsorption energy, leading to its superior inhibitive performance compared to PTCA.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Materials Science, Multidisciplinary
A. S. Sowmyashree, Amita Somya, Srilatha Rao, C. B. Pradeep Kumar, Abeer Nasser Al-Romaizan, Mahmoud A. Hussein, Anish Khan, Hadi M. Marwani, Abdullah M. Asiri
Summary: Green corrosion inhibitors, such as Citrus limetta peel extract, have gained attention for their cost-effectiveness, biodegradability, and eco-friendly characteristics in inhibiting the corrosion of metallic alloys. This study investigates the corrosion inhibition efficiency of Citrus limetta peel extract on mild steel surfaces in an acidic environment using electrochemical methods. The results demonstrate that the extract exhibits a corrosion inhibition efficiency of 93% on mild steel surfaces in hydrochloric acid media. The adsorption mechanism of the peel extract on mild steel surfaces involves both physisorption and chemisorption.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Francisco Alexandre de Sousa Rodrigues, Yan Marques Henriques Goncalves, Bruno Araujo Cautiero Horta, Iara da Silva Santos, Barbara Silva, Eliane D'Elia
Summary: The research investigated three isonitrosoacetanilide compounds as mild steel corrosion inhibitors, with results showing that the presence of bromine and methoxy groups enhanced the inhibitory properties. Experimental and computational methods confirmed that the adsorption process is of the physical type.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Construction & Building Technology
Peitao Qiu, Lianying Zhang, Yan Li, Bing Li, Jiong Zhu, Chao Ma, Xiaoxi Bi, Yang Yu
Summary: The study found that the permeability of CPC decreases with decreasing pH of the sulphuric acid solution and increasing cement content, promoting both hydration and corrosion.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Multidisciplinary Sciences
O. Oyewole, T. A. Oshin, B. O. Atotuoma
Summary: Using Corchorus olitorius stem extract as inhibitor can effectively reduce the corrosion rate of mild steel in 0.5M H2SO4 solution, with organic constituents such as Alkaloids, Tannins, Glycosides, Saponins and Flavonoids. The optimized process levels were found to be 4.11 days of processing time, temperature of 48.92 degrees Celsius, and inhibitor concentration of 1.16 g/L, resulting in an inhibition efficiency of 94.34%.
Article
Chemistry, Physical
Mohammad Mobin, Ruby Aslam, Rajae Salim, Savas Kaya
Summary: This paper discusses the design and experimental results of two ionic liquids as environmentally friendly high-temperature corrosion inhibitors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Erik Ruf, Tim Naundorf, Tom Seddig, Helmut Kipphardt, Wolfgang Maison
Summary: Organic acids derived from oil-based sources are commonly used as corrosion inhibitors in metalworking fluids. However, the criteria for selecting these inhibitors have shifted from performance-driven to include ecological considerations, toxicity, and regulatory standards. This study presents scalable semisynthetic approaches to synthesizing organic corrosion inhibitors from renewable resources. The efficacy of these inhibitors was evaluated for corrosion protection of iron and steel in an aqueous environment. One particular phosphonic acid, derived from castor oil, demonstrated remarkable anticorrosive effects and could potentially serve as a commercially attractive substitute for current acidic corrosion inhibitors.
Article
Chemistry, Physical
Yaroslav G. Avdeev, Tatyana A. Nenasheva, Andrey Yu Luchkin, Andrey Marshakov, Yurii Kuznetsov
Summary: This study investigates the kinetics of hydrogen cathodic reduction on low-carbon steel in hydrochloric acid solutions containing corrosion inhibitors, namely quaternary ammonium salts and a 3-substituted 1,2,4-triazole. The results show that the addition of these inhibitors inhibits the cathodic reduction and penetration of hydrogen into the steel. The 3-substituted 1,2,4-triazole is found to be the most effective inhibitor of hydrogen absorption.
Article
Agricultural Engineering
Dan-Yang Wang, Jun-Hu Wang, Hui-Jing Li, Yan-Chao Wu
Summary: In this study, an environmentally friendly, inexpensive, and biodegradable pectin corrosion inhibitor was prepared using waste peel and residue. The corrosion inhibition mechanism of the pectin inhibitors on carbon steel in CO2-saturated groundwater was investigated, and their adsorption stability and chemisorption on the Fe surface were analyzed.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Review
Materials Science, Multidisciplinary
Lucas Souza, Elaine Pereira, Lioudmila Matlakhova, Viviane A. F. Nicolin, Sergio N. Monteiro, Afonso R. G. de Azevedo
Summary: Carbon steel is widely used in severe industrial conditions and is highly susceptible to corrosion. Traditional corrosion inhibitors, although effective, are toxic to humans and harmful to the environment. Ionic liquids, as a new alternative, have shown promising results as corrosion inhibitors for carbon steel in hydrochloric acid. This review presents recent advances in the application of ionic liquids for corrosion inhibition, with all results obtained from potentiodynamic polarization tests.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Materials Science, Multidisciplinary
Norbaayah Ahmad Reza, Nor Hasrul Akhmal, Nor Akmal Fadil, Mohd Firdaus Mohd Taib
Summary: Acid corrosion is a problem involving acid solutions that can lead to over-etching and metal degradation. Conventional corrosion inhibitors have issues such as nitrites and chromates that can cause health and environmental problems. Organic green corrosion inhibitors, which form a protective layer to prevent metal dissolution, are being studied as alternatives.
Article
Materials Science, Multidisciplinary
Tianyu Zheng, Jinyan Liu, Meihui Wang, Qian Liu, Jia Wang, Yao Chong, Guixiao Jia
Summary: The corrosion resistance of Q235 steel treated with different corrosion inhibitors in sulfuric acid was studied. Results showed that DTAB-Thiourea and DDBAB-Thiourea have strong synergistic effects and can effectively inhibit corrosion. The adsorption forms of the inhibitors on the steel surface were investigated and explained using density functional theory.
Article
Materials Science, Multidisciplinary
Mohammadreza Aghaaminiha, Ramin Mehrani, Martin Colahan, Bruce Brown, Marc Singer, Srdjan Nesic, Silvia M. Vargas, Sumit Sharma
Summary: The experiments demonstrate that the time-profile of corrosion rates depends on dose schedule, while the final rates are mainly influenced by environment severity. The Random Forest algorithm was found to be the best predictor of the entire time-profile of corrosion rates with a mean squared error ranging from 0.005 to 0.093. The trained Random Forest model accurately predicts the sensitivity of corrosion rates to changes in environmental variables.
