Abstract
<div><p><em>The present work demonstrated that corrosion inhibition efficiency of electrochemically generated organic coat is remarkably effective than self-assembled monolayer (SAM) generated by dip coating technique. Perfluorooctanoic Acid (PFOA) is used to modify mild steel surface for effective protection. Infrared reflection absorption spectroscopy and contact angle measurements substantiate the modification of mild steel surface and its effect on surface hydrophobicity. A comparison between electrochemical properties of PFOA SAM generated by dip coat method (DC-PFOA) and PFOA coat generated by electrochemical method (EC-PFOA) is presented. Electrochemical measurements reveal that the corrosion protection efficiency of EC-PFOA (91%) is much superior to DC-PFOA (28%). </em></p></div>
Highlights
Mild steel is most frequently used engineering metallic material owing to its excellent mechanical - material property, availability and relative low cost [1]
In an earlier paper we reported that sodium oleate self-assembled monolayer (SAM) protects mild steel from corrosion in saline water [12]
For the EC-Perfluorooctanoic acid (PFOA), there is a shift in adsorption band of νax (CF2) by 24 cm-1 compared to DC-PFOA in the direction of lower wavenumber
Summary
Mild steel is most frequently used engineering metallic material owing to its excellent mechanical - material property, availability and relative low cost [1].
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