Corrosion inhibition of mild steel in 1M HCl using environmentally benign Thevetia peruviana flower extracts

Gravimetric, Electrochemical and Theoretical Study on Corrosion of AA6061/3wt% SiC/3wt% B4C Hybrid Composite in Acid Medium Using EDTA

“…The lower global hardness and higher global softness values for neutral EDTA than protonated EDTA reveal the neutral EDTA's better inhibition activity. Further, the lower values of Eg, and χ, while a higher value of ΔN for neutral EDTA, indicate its more significant contribution towards inhibition activity than protonated EDTA, based on its better ability to donate electrons [54].…”

Anticorrosive Performance of Wild Lycium ferocissimum Miers Fruit Extract on Carbon Steel in an Acidic Medium

“…Mechanism‐based inhibition of these phytomolecules is depending on the effectiveness of the organic groups attached. Typically, the electron‐rich hydrophilic centers interact (adsorb) on the metallic surface where hydrophobic parts of the phytochemicals float in an electrolytic solution and avoid its contact with a metallic surface [26,27] . According to literature, different plant parts are used in the extract solutions such as seeds, fruit, flowers, and leaves.…”

“…Typically, the electron-rich hydrophilic centers interact (adsorb) on the metallic surface where hydrophobic parts of the phytochemicals float in an electrolytic solution and avoid its contact with a metallic surface. [26,27] According to literature, different plant parts are used in the extract solutions such as seeds, fruit, flowers, and leaves. Herein, extracts from dry fruit of Lycium ferocissimum Miers (Figure 1) are introduced as safe, cheap, and potential corrosion inhibitors for commercial grade metal.…”

Development of a Novel Thermally Stable Inhibitor Based on Furfuryl Alcohol for Mild Steel Corrosion in a 15% HCl Medium for Acidizing Application

“…They can be used in transportation, construction, energy, and industries owing to their economic efficiency and strong versatility. , Heteroatoms (such as N, O, P, and S), heterocycles, multiple bonds, and aromatic rings are the most important electron-rich groups in the structure of organic CIs that cause the adsorption of their molecules on the surface of metal and protect it against corrosive species in the medium. ,− In other words, the replacement of CIs with water molecules on the metal surface leads to the blocking of active sites for redox reactions and thus inhibits the transfer of water and corrosive ions on the metal surface. , The molecular properties of CI molecules, such as steric factors, aromaticity, chain length, functional groups, electronic structures, cross-linking ability, and solubility have a significant impact on their adsorption behavior . Due to the low biodegradability of traditional CIs such as mercury salts, chromate, phosphorus-containing compounds, and the majority of organic molecules, it is critical to develop new eco-friendly inhibitors. − In recent years, CIs based on bio-sources such as carbohydrates, vegetable oils, amino acids, and plant extracts have been studied to address this issue. ,− Furfuryl alcohol as another renewable substance derived from furfural has also been investigated as a CI in acidic solutions. − Although the inhibition performance of bio-based CIs has been evaluated for corrosion inhibition of various metals, their main challenge is poor inhibition efficiency at high temperatures. , It should be noted that the temperature is over 353 K during some acid stimulation operations, which considerably increases the corrosive potential of the environment toward technological structures based on steel. In such conditions, the corrosion rate of steel accelerates dramatically, making operations impractical. , As a result, metals in the oil and gas industry must be protected against high-temperature acid corrosion by developing effective inhibitors.…”