Synthesized amino acid compounds as eco-friendly corrosion inhibitors for mild steel in hydrochloric acid solution: electrochemical and quantum studies

Synthesized amino acid compounds as eco-friendly corrosion inhibitors for mild steel in... Corrosion inhibition performance of synthesized amino acid compounds, namely, (Z)-2-(2-oxoindolin-3-ylideneamino)acetic acid (OYAA) and 2-(2-oxoindolin-3-ylideneamino)-3-phenylpropanoic acid (OYPA) on mild steel in 15-% HCl solution was investigated by means of potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. Potentiodynamic polarization studies showed that both studied inhibitors were mixed types in nature. The adsorption of inhibitors on the mild steel surface obeyed Langmuir's adsorption isotherm. The potential of zero charge (E PZC) for the mild steel was determined via EIS to discuss the adsorption mechanism. Scanning electron microscopy, energy dispersion X-ray spectroscopy and atomic force microscopy were used to characterize the surface morphology of uninhibited and inhibited mild steel specimens. The density functional theory was employed for theoretical calculations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesized amino acid compounds as eco-friendly corrosion inhibitors for mild steel in hydrochloric acid solution: electrochemical and quantum studies

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Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2172-5
Publisher site
See Article on Publisher Site

References

  • Corrosion protection of N80 steel in HCl by condensation products of aniline and phenol
    Vishwanatham, S; Sinha, PK
  • Investigation of inhibition effect of some amino acids against steel corrosion in HCl solution
    Ashassi-Sorkhabi, H; Majidi, MR; Seyyedi, K
  • Synthesis and characterization of new lead(II) complexes of Schiff bases derived from amino acids
    Singh, HL; Singh, JB
  • A new mixing of Hartree-Fock and local density-functional theories
    Becke, AD

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