Adsorption and performance of the 2-mercaptobenzimidazole as a carbon steel corrosion inhibitor in EDTA solutions

1‐Vinyl‐3‐allyl Imidazolium Bromide as a New Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

“…For comparison, two inhibitor molecules (AIM and [VAIM] + ) were investigated in hydrochloric acid solution to obtain the interaction between ILs and iron surface. The interaction between the molecule and the Fe (0 0 1) surface [37] can be obtained using the following formula: [38]…”

“…E solution represents the sum of the energy of the aqueous solution. E binding is the interaction energy or adsorption energy and the result can be expressed as: [37][38] E binding ¼ À E interaction=adsorption (13) Figure 16 showed the equilibrium adsorption configuration of AIM and [VAIM] + on the iron surface in 1 M HCl solution. Two inhibitor molecules tended to adsorb on the iron surface in parallel.…”

Corrosion inhibition of carboxylate inhibitors with different alkylene chain lengths on carbon steel in an alkaline solution

“…The peaks at 221 cm À1 , 283 cm À1 and 405 cm À1 might be attributed to the iron oxide or hydroxide, such as FeOOH or Fe 3 O 4 on the steel surface. 53 The peaks at about 600-700 cm À1 might be assigned to C]O bending absorption, 54 and the peak position slightly shi to negative as the alkylene chain length increases. The peaks at about 1292 cm À1 and 1589 cm À1 are attributed to the C-H bending and the alkylene stretching, respectively.…”

Corrosion inhibition of mild steel by the hydrolysate of an imidazoline-based inhibitor in CO2-saturated solution

“…Fig. 7 34,35 The depressed semicircle forms with the centre under the real axis are characteristic of solid electrodes and are due to geometrical factors such as roughness and inhomogeneities of electrode surface. 36,37 The plots for sample steel without LFA inhibitor at 333 K and with the addition of 1000 mg L À1 LFA at the immersion time of 504 and 600 h at 293 K exhibit one depressed semicircle at high frequency region and a long tail with an angle of about 45 to the real-axis at low frequencies.…”