Inhibition of Stainless Steel Corrosion in 0.5 M H2SO4 in the Presence of C6H5NH2

Omotosho, Olugbenga Adeshola; Okeniyi, Joshua Olusegun; Izuchukwu, Emmanuel; Sonoiki, Oluwatobi Oluwasegun; Oladipupo, Segun; Oshin, Timi Moses

doi:10.1007/978-3-319-48254-5_56

Cited by 4 publications

(2 citation statements)

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“…the last three compounds in Figure 2, are ligands that are derivative of aniline. By these, the consideration that experimental works in the literature [18,[42][43][44][45][46][47] have identified aniline with very good anticorrosion performance on different metals in corrosive environments engender keen interest on the prospect of using this apparent natural source of aniline derivative for corrosion inhibition study. Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…For instance, phytochemical bio-resources in I. gabonensis leaf-extract include glycoside, which was shown as a good inhibitor of carbon steel corrosion in 3.5% NaCl medium in [15]. Also, Euclidean search hit list from the FTIR characterization identify ligands that are derivative of aniline compounds, which have been used in its synthetic chemical form by several authors for inhibiting metallic corrosion [42][43][44][45][46][47], and these include studies on steel-reinforcement in concrete [44][45][46]. Therefore, at the low concentration of the I. gabonensis leaf-extract admixture, the bio-constituent combinations appear to be insufficient and this leads to corrosion aggravation.…”

Section: Resultsmentioning

confidence: 99%

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Understanding Eco-Friendly Anticorrosion Prospect on Steel-Reinforcement in NaCl-Immersed Concrete from Biochemical Characterization of Irvingia Gabonensis Leaf

Okeniyi¹,

Popoola²

2017

Contributed Papers From MS&T17

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Different characterization techniques were employed for understanding anticorrosion prospect of Irvingia gabonensis leaf-extract on steel-reinforcement. FTIR spectroscopy showed that this leaf-extract is constituted of N-, SO O-, Hg-containing heteroatoms having π-electron ligands that usually exhibit affinity for steel-rebar Fe constituent. AAS indicates Irvingia gabonensis leaf inorganic composition includes Ni, Cu, Cd, Fe, but neither Pb nor Cr, and with the low/non-toxic heavy metal levels supporting the natural-plant's eco-friendliness. Phytochemical-screening showed that the leaf-extract is rich in glycosides (known for steel corrosion-protection in NaCl) and in saponnins, with traces of flavonoids, stenoids and terpenoids. Anticorrosion prospect investigation, via the leaf-extract admixture in 3.5% NaCl-immersed steel-reinforced concretes, showed that corrosion-inhibition performance increased with increasing leaf-extract concentrations. By statistical modeling of the electrochemical/corrosion test-data, the lower Irvingia gabonensis leaf-extract concentrations aggravated corrosion, indicating insufficient admixture usage, while the higher concentrations exhibited η > 80% corrosioninhibition efficiencies, suggesting sufficient bio-constituent combinations for corrosion-mitigation.

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Section: Resultsmentioning

confidence: 99%