Experimental and theoretical study of the inhibition effects of some Schiff bases as corrosion inhibitors of aluminium in HCl

Aytac A., Bilgic S., Gece G., Ancin N., Oztas S. G.

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, cilt.63, sa.8, ss.729-734, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 63 Sayı: 8
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1002/maco.201106241
  • Dergi Adı: MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.729-734
  • Anahtar Kelimeler: aluminium, corrosion inhibition, DFT, impedance, Schiff base, HYDROCHLORIC-ACID SOLUTION, DIMETHYLTIN(IV) COMPLEXES, MOLECULAR-STRUCTURE, SULFURIC-ACID, STEEL, MEDIA, METAL, DFT
  • Gazi Üniversitesi Adresli: Evet

Özet

The inhibition efficiencies of two new synthesized Schiff bases have been investigated for aluminium in 0.5?M HCl solution using experimental and theoretical methods. Potentiodynamic polarization and EIS method were used to determine the inhibition efficiencies. From the experimental results it has been found that both compounds adsorb on the aluminium surface according to the Temkin adsorption isotherm. Quantum chemical calculations were further applied to reveal the adsorption structure and explain the experimental results. A good correlation between the quantum chemical parameters and the experimental inhibition efficiency has been found.