Green corrosion inhibitor: A comparative study

Sivakumar, P.; Srikanth, Akella

doi:10.1007/s12046-020-1283-x

Cited by 14 publications

(12 citation statements)

References 22 publications

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“…When these corrosion points are seen more closely in Figure 9 b, characteristic pitting corrosion is evident in this type of steel. On the other hand, in Figure 9 c,d it is observed that the sample coated with Artemisia vulgaris changed its color from jade green to an opaque brown, as a consequence of the reaction between the phenols and flavonoids of the coating with the medium corrosive [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

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Innovative Method for Coating of Natural Corrosion Inhibitor Based on Artemisia vulgaris

et al. 2021

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In this work, the production of a novel methodology for the application of natural corrosion inhibitors on steel, using an autoclave is presented. Tests were carried out using Artemisia vulgaris. The inhibitor was produced with a simple soxhlet extraction process using 15 g of Artemisia vulgaris and 260 mL of Ether. Once the inhibitor was produced, the steel was immersed in it, to form a coating that protects the material against corrosion. Thermogravimetry analyzes (TGA) were performed on the inhibitor, to determine the degradation temperature; it was observed that, at 321 °C, the loss of organic mass begins. After applying the inhibitor to the steel, the Fourier Transform Infrared Spectroscopy (FTIR) technique was used to determine the vibrational bands and the difference between the spectra for the steels before and after the coating was applied. For the evaluation of the method efficiency, Electrochemical Impedance Spectroscopy (EIS) and polarization resistance tests were performed, where Nyquist diagrams and Tafel curves were obtained, for steels with and without treatment. In this case, an increase of 93% in the corrosion resistance, and an 88% decrease in the corrosion rate were observed, proving that this methodology can be used to protect steel against corrosion and extend the steel’s useful life.

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Section: Resultsmentioning

confidence: 99%

“…Figure 10 shows the coating inhibition method. The protection provided by Artem vulgaris coating is possible thanks to the ability of phenols to trap oxygen and hydrog in their free radicals [33,34], phenols being part of the oxidation process while the stee protected. Figure 10 shows the coating inhibition method.…”

Section: Visual Inspectionmentioning

confidence: 99%

Innovative Method for Coating of Natural Corrosion Inhibitor Based on Artemisia vulgaris

et al. 2021

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Section: Introductionmentioning

confidence: 99%

“…It can be said that most natural products can be considered green corrosion inhibitors because they are rich in compounds that are effective for corrosion inhibition [73,79,80]. When talking about green corrosion inhibitors, plants are always unconsciously considered, while a wide range of sources can be considered (see Figure 4) [81][82][83][84]. As seen in Figure 4, the use of various sources can be considered for use, and many of them, in addition to anti-corrosion properties, can reduce microbial aggression due to the presence of compounds such as polyphenols, alkaloids, and terpenes [81,82,85].…”

Section: Introductionmentioning

confidence: 99%

The Use of Plant Extracts as Green Corrosion Inhibitors: A Review

Sheydaei

2024

Surfaces

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The corrosion of metals is very important, both economically and environmentally, and is a serious concern. Since the past decades, traditional (chemical) corrosion inhibitors to prevent corrosion have been and are still being used. Although these inhibitors can be said to be a good choice among other protection techniques because of their good efficiency, the toxicity of many of them causes environmental problems, and, due to the change in the laws on the use of chemicals, many of them are no longer allowed. Hence, during the past years, research on green corrosion inhibitors (GCIs) increased and very favorable results were obtained, and now they are very popular. It can be said that biodegradability and easy preparation are their most important factors. Meanwhile, the use of plants, especially their extracts, has been studied a lot. Plant extracts contain compounds that have anti-corrosion properties. In this review, the use of plants as GCIs is investigated, focusing on recent advances in their use. Also, the phenomenon of corrosion, corrosion protection (including coatings, nanoparticles, and chemical inhibitors), and other GCIs are briefly reviewed.

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“…Natural products of plant origin and substances from other renewable sources have gained heightened interest by researchers as green corrosion inhibitors [5][6][7], because they are biodegradable [8,9], less toxic [10] and do not contain heavy metals. In the light of these, several plants extracts have been investigated and their corrosion inhibition properties are often attributed to phytochemicals present [11][12][13][14]. The active phytochemicals in plants that are effective for corrosion inhibition are those that have heteroatom in their aromatic or long carbon chain [15,16].…”

Section: Introductionmentioning

confidence: 99%

Comparative studies of inhibitive properties of Ficus polita and Ficus platyphylla on corrosion inhibition of mild steel in acidic medium

Adah

Adejo

Gbertyo

et al. 2021

Ovidius University Annals of Chemistry

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The menace of corrosion of steel in industries has been widely acknowledged. Analysis of oil pipeline failures in oil and gas industries in the Niger Delta area of Nigeria showed corrosion as one of the major causes of failure. Eco-friendly, cheap and renewable materials such as plant extracts have been investigated as alternative to the use of expensive synthetic chemicals which are often hazardous. In this study inhibitive properties of ethanol extracts of Ficus polita and Ficus platyphylla leaves as eco-friendly inhibitors of mild steel in 2 M sulfuric acid solution were investigated by weight loss method at temperatures of 301, 305, 309 and 313 K. The study has shown that both plant extracts inhibited the corrosion of mild steel in the acid medium. The inhibition efficiency (IE) and surface coverage (θ) for both extracts increased with increase in concentration and temperature. This trend is suggestive of chemical adsorption. However, the leaf extract of Ficus polita showed higher IE compared to F. platyphylla. Thermodynamic parameters and apparent activation energy obtained from the studies revealed the inhibition by both plant extracts to be spontaneous, exothermic and chemisorptive, while the adsorption mechanism of both plant extracts on the steel surface aligned with the Freundlich isotherm model, F. polita fits well to Temkin and Adejo-Ekwenchi isotherm models in addition.

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Green corrosion inhibitor: A comparative study

Cited by 14 publications

References 22 publications

Innovative Method for Coating of Natural Corrosion Inhibitor Based on Artemisia vulgaris

Innovative Method for Coating of Natural Corrosion Inhibitor Based on Artemisia vulgaris

The Use of Plant Extracts as Green Corrosion Inhibitors: A Review

Comparative studies of inhibitive properties of Ficus polita and Ficus platyphylla on corrosion inhibition of mild steel in acidic medium

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