Schiff bases as corrosion inhibitor for aluminium in HCl solution

Safak S., Duran B., Yurt A., Turkoglu G.

CORROSION SCIENCE, cilt.54, ss.251-259, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 54
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.corsci.2011.09.026
  • Dergi Adı: CORROSION SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.251-259
  • Anahtar Kelimeler: Aluminium, EIS, Polarisation, Acid corrosion, HYDROCHLORIC-ACID SOLUTION, MILD-STEEL CORROSION, CHLORIDE SOLUTION, AQUEOUS-SOLUTIONS, IODIDE-IONS, DERIVATIVES, ADSORPTION, PARAMETERS, BEHAVIOR, H2SO4
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Three Schiff bases named 1,5-bis[2-(2-hydroxybenzylideneamino)phenoxy]-3-oxopentane (D1), 1,5-bis[2-(5-chloro-2-hydroxybenzylideneamino)phenoxy]-3-oxopentane (D2) and 1,5-bis[2-(5-bromo-2-hydroxybenzylideneamino)phenoxy]-3-oxopentane (D3) were synthesized and their inhibitive capabilities on the aluminium corrosion in 0.1 M HCl were investigated by means of electrochemical impedance spectroscopy, Tafel polarisation and scanning electron microscopy techniques. Results showed that, compounds under study exhibit inhibitor properties and adsorption of these compounds was found to accord with Temkin adsorption isotherm. Polarisation curves indicated that the studied Schiff bases were cathodic inhibitor and the effectiveness of these inhibitors decreased in the order of D3 > D2 > D1. Quantum chemical calculations were performed to provide further insight into the inhibition efficiencies determined experimentally. (C) 2011 Elsevier Ltd. All rights reserved.