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


Doner A., KARDAŞ G.

CORROSION SCIENCE, cilt.53, ss.4223-4232, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 53 Konu: 12
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.corsci.2011.08.032
  • Dergi Adı: CORROSION SCIENCE
  • Sayfa Sayısı: ss.4223-4232

Özet

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.