N-Aminorhodanine as an effective corrosion inhibitor for mild steel in 0.5 M H2SO4

Doner A., KARDAŞ G.

CORROSION SCIENCE, vol.53, no.12, pp.4223-4232, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 12
  • Publication Date: 2011
  • Doi Number: 10.1016/j.corsci.2011.08.032
  • Title of Journal : CORROSION SCIENCE
  • Page Numbers: pp.4223-4232


The corrosion inhibition effect of N-aminorhodanine (N-AR) on mild steel (MS) in 0.5 M H2SO4 was studied in both short and long immersion duration using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), chronoamperometry and hydrogen gas evolution. The surface morphology of MS was examined with scanning electron microscopy (SEM) in absence and presence inhibitor. The inhibitor adsorption process on MS surfaces obeys the Langmuir adsorption isotherm. The results show that NAR is a good inhibitor for MS in the acidic medium. The inhibition efficiency obtained from potentiodynamic polarization, EIS and LPR up to 98% is determined. (C) 2011 Elsevier Ltd. All rights reserved.