Proline nitrate ionic liquid as high temperature acid corrosion inhibitor for mild steel: Experimental and molecular-level insights

Enhanced Corrosion Resistance of Carbon Steel in Hydrochloric Acid Solution by Polyoxometalate-Estertin Derivatives

“…In order to clarify the adsorption mechanism of these inhibitors on the surface of carbon steel in 0.5 M HCl solution, taking SbW 9 -Mn-SnR for example, different adsorption models including Langmuir, Frumkin, Temkin, Freundlich, Flory–Huggins, and El-Awady isotherms were separately used to analyze the adsorption behaviors of POM-based inhibitors. , It is found from Figure that the experimental data could be well-fitted with the Langmuir adsorption isotherm with R 2 > 0.99. The other tested isotherms are shown in Figure S9.…”

“…6 For instance, ionic liquids (ILs) have shown their outstanding performance in corrosion inhibition of steels in the acidic environment owing to many attractive characteristics such as high stability, high solubility, and low environmental hazards, although they suffer from the high production cost sometimes. 7,8 Moreover, plant extract corrosion inhibitors have been widely studied as green corrosion inhibitors owing to their high inhibition efficiency, chemical stability, and environmental friendliness. However, their application is limited by the difficulty of separation.…”

“…However, HCl solution is highly corrosive to metallic equipment, so a suitable corrosion inhibitor needs to be added in a chemical acidic cleaning process of equipment. , In the early stage, some simple oxysalts were used for metal corrosion inhibition, but they are mostly used in neutral media rather than acidic solution. , For organic corrosion inhibitors, they have more obvious advantages in acidic media . For instance, ionic liquids (ILs) have shown their outstanding performance in corrosion inhibition of steels in the acidic environment owing to many attractive characteristics such as high stability, high solubility, and low environmental hazards, although they suffer from the high production cost sometimes. , Moreover, plant extract corrosion inhibitors have been widely studied as green corrosion inhibitors owing to their high inhibition efficiency, chemical stability, and environmental friendliness. However, their application is limited by the difficulty of separation. − In recent years, intelligent corrosion inhibitors with pH responsivity, self-assembly, and self-healing properties have attracted more and more attention of scientists. − Despite the above achievements, the development of new sustainable, environmentally friendly, and highly efficient corrosion inhibitors in acidic media is still an important topic in metal protection.…”

Novel ZrO2-glycine nanocomposite as eco-friendly high temperature corrosion inhibitor for mild steel in hydrochloric acid solution

“…The working electrode (WE) in this experiment was mild steel and the composition is given in our earlier publications 29 , 30 . For weight loss measurement, the steel was cut into sheets with dimensions of 2.5 cm × 2 cm × 0.1 cm from a large strip.…”

Innovative Method for Longer Effective Corrosion Inhibition Time: Controlled Release Oil Palm Empty Fruit Bunch Hemicellulose Inhibitor Tablet

“…The Nyquist plots of mild steel in the absence and presence of inhibitor are illustrated in Figure 6. Distinctly, the plots comprised of single capacitive loops, which suggests that the corrosion process is controlled by a charge-transfer process [62][63][64]. However, the capacitive loops curve slightly deviated from a perfect semicircle shape, especially at higher frequencies.…”