Task-specific ionic liquid as a new green inhibitor of mild steel corrosion

A peony-leaves-derived liquid corrosion inhibitor: protecting carbon steel from NaCl

“…The addition of the peony leaves extract liquid to 3.5 wt.% NaCl increased the contact angle and decreased the surface free energy, as depicted in Figure 16. These changes can be attributed to an adsorbed hydrophobic layer on the surface of carbon steel (83,85), further validating the findings from electrochemical and surface analyses. In summary, the adsorption mechanism of peony leaves derivatives displaced water molecules from the carbon steel surface.…”

Inhibition efficiency of aminobenzonitrile compounds on steel surface

“…When this value is −20 kj/mol or less, this indicates that there is an electrostatic interaction, namely physical adsorption between inhibitor molecules and metal surface. While the value is −40 kj/mol or more negative, coordinate covalent bond form and the type of adsorption is named as chemical adsorption [27][28][29]. Furthermore, these G o ads values showed that there is a strong adsorptive interaction between Table 3 The Rp and CPE obtained from fitting, inhibition efficiency values (Á%) in 0.5 M HCl solution without and with 10 mM 2-AB and 10 mM 3-AB, for different temperatures.…”

Ionic Liquids as Electrodeposition Additives and Corrosion Inhibitors

“…There are various organic inhibitors that tend to decrease the corrosion rate of steel and iron in acidic solutions [28,[83][84][85][86]. ILs with imidazolium [87][88][89][90][91][92] and pyridinium cations [93,94] have showed excellent corrosion inhibition performance on mild steel in an acidic environment. We have irst investigated the acid corrosion inhibition process of mild steel [2] 4 .…”