Experimental and theoretical calculations on corrosion inhibition of steel in 1 M H2SO4 by crown type polyethers

Hasanov R., Bilge S., Bilgic S., Gece G., Kilic Z.

Corrosion Science, cilt.52, sa.3, ss.984-990, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52 Sayı: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.corsci.2009.11.022
  • Dergi Adı: Corrosion Science
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.984-990
  • Anahtar Kelimeler: Steel, Electrochemical calculation, Modelling studies, Acid inhibition, HYDROCHLORIC-ACID SOLUTION, MILD-STEEL, SULFURIC-ACID, SCHIFF-BASES, CARBON-STEEL, MOLECULAR-STRUCTURE, IODIDE-IONS, MEDIA, ALUMINUM, IRON
  • Ankara Üniversitesi Adresli: Evet

Özet

The corrosion inhibitive efficiencies of two crown type polyethers, namely dibenzo-bis-imino crown ether (C-1) and dibenzo-diaza crown ether (C-2), which are macrocyclic Schiff base and its reduced form (macrocyclic amine), respectively, for the steel in 1 M H2SO4 have been investigated by Tafel extrapolation and linear polarization methods. Corrosion and adsorption isotherm parameters were determined from current-potential curves. The studies show that C-1 and C-2 inhibit the corrosion of the steel in H2SO4 solution. Semiempirical AM1 method was used for theoretical calculations. The obtained results of these calculations for the compounds were found to be consistent with the experimental findings. © 2009 Elsevier Ltd. All rights reserved.