Caffeic acid as a green corrosion inhibitor for mild steel
TL;DR: In this paper, the inhibitor effect of the naturally occurring biological molecule caffeic acid on the corrosion of mild steel in 0.1 M H2SO4 was investigated by weight loss, potentiodynamic polarization, electrochemical impedance and Raman spectroscopy.
About: This article is published in Corrosion Science.The article was published on 2009-03-01. It has received 503 citations till now. The article focuses on the topics: Corrosion inhibitor & Caffeic acid.
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TL;DR: In this article, a review summarizes the corrosion inhibition of steel materials in acidic media, focusing on HCl solutions, lower-grade steels, and elevated temperatures, and also devoted to corrosion inhibitor formulation design.
927 citations
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TL;DR: In this paper, the effect of henna extract (Lawsonia inermis) and its main constituents (lawsone, gallic acid, α-d -Glucose and tannic acid) on corrosion of mild steel in 1M HCl solution was investigated through electrochemical techniques and surface analysis (SEM/EDS).
569 citations
TL;DR: In this paper, the effect of Justicia gendarussa extract (JGPE) on mild steel in 1-M HCl medium has been investigated by weight loss and electrochemical techniques.
552 citations
TL;DR: In this paper, the authors focus mainly on plant materials as green corrosion inhibitors and use computational modeling to understand the mechanism of inhibitor action, their adsorption patterns, the inhibitor-metal surface interface and aid the development of designer inhibitors with an understanding of the time required for the release of self-healing inhibitors.
Abstract: Corrosion control of metals is of technical, economical, environmental, and aesthetical importance. The use of inhibitors is one of the best options of protecting metals and alloys against corrosion. The environmental toxicity of organic corrosion inhibitors has prompted the search for green corrosion inhibitors as they are biodegradable, do not contain heavy metals or other toxic compounds. As in addition to being environmentally friendly and ecologically acceptable, plant products are inexpensive, readily available and renewable. Investigations of corrosion inhibiting abilities of tannins, alkaloids, organic,amino acids, and organic dyes of plant origin are of interest. In recent years, sol-gel coatings doped with inhibitors show real promise. Although substantial research has been devoted to corrosion inhibition by plant extracts, reports on the detailed mechanisms of the adsorption process and identification of the active ingredient are still scarce. Development of computational modeling backed by wet experimental results would help to fill this void and help understand the mechanism of inhibitor action, their adsorption patterns, the inhibitor-metal surface interface and aid the development of designer inhibitors with an understanding of the time required for the release of self-healing inhibitors. The present paper consciously restricts itself mainly to plant materials as green corrosion inhibitors.
500 citations
Cites background from "Caffeic acid as a green corrosion i..."
...de Souza and Spinelli [83] studied the inhibitory action of caffeic acid as a green corrosion inhibitor for mild steel....
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...Caffeic Acid. de Souza and Spinelli [83] studied the inhibitory action of caffeic acid as a green corrosion inhibitor for mild steel....
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...The GLE gave 97% inhibition efficiency while the GSE gave 94% at the highest concentration [83]....
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TL;DR: In this article, a review on ionic liquids as green corrosion inhibitors for different metals and alloys such as mild steel, aluminum, copper, zinc, and magnesium in several electrolytic media is presented.
389 citations
References
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Book•
01 Aug 1991
TL;DR: In this article, the technology and evaluation of Corrosion is presented, with a focus on the effects of Metallurgical Structure on Corrosions, and a discussion of materials selection and design.
Abstract: 1. The Technology and Evaluation of Corrosion. 2. Electrochemical Thermodynamics and Electrode Potential. 3. Electrochemical Kinetics of Corrosion. 4. Passivity. 5. Polarization Methods to Measure Corrosion Rate. 6. Galvanic and Concentration Cell Corrosion. 7. Pitting and Crevice Corrosion. 8. Environmentally Induced Cracking. 9. Effects of Metallurgical Structure on Corrosion. 10. Corrosion-Related Damage by Hydrogen, Erosion, and Wear. 11. Corrosion in Selected Corrosive Environments. 12. Atmospheric Corrosion and Elevated Temperature Oxidation. 13. Cathodic Protection. 14. Coatings and Inhibitors. 15. Materials Selection and Design. Index.
2,939 citations
TL;DR: In this paper, the laser power dependence of the spectra of oxides and oxyhydroxides was investigated by using Raman microscopy, and it was shown that increasing laser power causes the characteristic bands of hematite to show up in the spectrum of most of the compounds studied.
Abstract: Hematite (α-Fe2O3), magnetite (Fe3O4), wustite (FeO), maghemite (γ-Fe2O3), goethite (α-FeOOH), lepidocrocite (γ-FeOOH) and δ-FeOOH were studied by Raman microscopy. Such compounds have already been studied by Raman spectroscopy, but there are some disagreements in the reported data. Here, Raman microscopy was employed to investigate the laser power dependence of the spectra of these oxides and oxyhydroxides. Low laser power was used for the reference spectra in order to minimize the risks of spectral changes due to sample degradation. The results obtained show that increasing laser power causes the characteristic bands of hematite to show up in the spectra of most of the compounds studied whereas the hematite spectrum undergoes band broadening and band shifts. © 1997 John Wiley & Sons, Ltd.
2,569 citations
Book•
01 Jan 1999
TL;DR: In this article, the authors present an approach to accelerate and amplify the amount of damage caused by aqueous and high-temperature corrosion in a given environment and application.
Abstract: Introduction 1. Aqueous Corrosion 2. Environments and Application Examples 3. high-Temperature Corrosion 4. Modeling, Life Prediction, and Computer Applications 5. Corrosion Failures 6. Corrosion Maintenance Through Inspection And Monitoring 7. Acceleration and Amplification of Corrosion Damage 8. Materials Selection 9. Protective Coatings 10. Corrosion Inhibitors 11. Cathodic Protection 12. Anodic Protection
1,025 citations
TL;DR: In this paper, the effect of benzimidazole derivatives on mild steel corrosion in 1 M HCl at five different temperatures has been studied and the inhibiting efficiency and apparent activation energy have been calculated in the presence and in the absence of the organic inhibitors.
997 citations