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Corrosion inhibition behavior of new synthesized nonionic surfactants based on amino acid on carbon steel in acid media.
- Source :
-
Journal of Molecular Liquids . Jul2016, Vol. 219, p1078-1088. 11p. - Publication Year :
- 2016
-
Abstract
- Three structurally different amino acids (Leucine, phenyl alanine and methionine) were reacted with oleic acid and polyethylene glycol (600) to give three nonionic surfactants (S 1 , S 2 and S 3 ). The chemical structures of the prepared surfactants were confirmed by FT-IR and 1 H, 13 CNMR. The surface parameters were calculated by surface tension measurements. The inhibition efficiencies of the prepared inhibitors on carbon steel in 1 M HCl were studied using polarization, and electrochemical impedance spectroscopy. Correlation between the quantum chemical calculations and inhibition efficiency was discussed. From the obtained results, the inhibitor based on L-phenyl alanine has high efficiency (94.14% at 1 × 10 − 3 mol L − 1 ) more than the other inhibitors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01677322
- Volume :
- 219
- Database :
- Academic Search Index
- Journal :
- Journal of Molecular Liquids
- Publication Type :
- Academic Journal
- Accession number :
- 115823242
- Full Text :
- https://doi.org/10.1016/j.molliq.2016.03.048