article · International Journal of Corrosion and Scale Inhibition
In the current paper, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS) were employed to evaluate (E)-1-((4-fluorophenyl)diazenyl)naphthalen-2ol (E4FN) ability to operate as carbon steel (CS) corrosion inhibitor in molar HCl acid. Data derived from PDP plots reveal that E4FN has a mixed-type nature. EIS outcomes show that increasing E4FN concentration lead to 20 times increment of polarization resistance (R p ) and alters the double layer capacitance (C dl ) from 116.2 to 54 Fcm -2 . The addition of 10 -3 M of E4FN into the solution exhibit a maximal inhibition efficacy of 94.8%. The thermodynamic
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DOI: 10.17675/2305-6894-2023-12-3-18
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