Synergistic inhibitor effect of cetylpyridinium chloride and other halides on the corrosion of mild steel in 0.5M H2SO4

Synergistic corrosion inhibition effect of quinoline quaternary ammonium salt and Gemini surfactant in H2S and CO2 saturated brine solution

“…Most of the previous research has been focused on the synergism in inorganic acid solution (HCl, H 2 SO 4 , H 3 PO 4 , etc.) [18][19][20][21][22] and in CO 2 -saturated brine solution [23,24]. However, the synergism in the solution containing H 2 S and CO 2 has rarely been reported.…”

Comparison of the synergistic effect of counterions on the inhibition of mild steel corrosion in acid solution: electrochemical, gravimetric and thermodynamic studies

“…24 Additionally, the synergistic effect of halide salts in improving the corrosion inhibition behavior of quaternary ammonium salts is also well documented. 14,25,26 The results highlight the important features of the additives that determine the interactions between the inhibitor and the metallic surface to some extent. Considering that halide salts can synergistically affect the interactions between the inhibitor and the metallic surface, the questions of whether and how counterions in inhibitors inu-ence the adsorption of organic inhibitors, and lead to the detected inhibitory effect, have not received a considerable amount of attention.…”

Effect of poly(methyl methacrylate-co-N-vinyl-2-pyrrolidone) polymer on J55 steel corrosion in 3.5% NaCl solution saturated with CO2

“…5, clearly the potential shift affects both the anode and the cathode. In literatures, [28,29] it has been reported that (i) if the displacement in E corr is >85 mV with respect to E corr , the inhibitor can be seen as a cathodic or anodic type and (ii) if displacement in E corr is <85, the inhibitor can be seen as mixed type. In the present study, shift in E corr values is in the range of 58 mV, suggesting that P(MMA-co-VP) acted as mixed type of inhibitor [30,31].…”