Title of article
Studies on the adsorption and inhibiting properties of Salix Babylonica Extract on corrosion of carbon steel in hydrochloric acid solutions
Author/Authors
fouda, a.s. el-mansoura university - faculty of science - department of chemistry, El-Mansoura, Egypt , molouk, a.f. el-mansoura university - faculty of science - department of chemistry, El-Mansoura, Egypt , elkhateeb, a.y. el-mansoura university - faculty of agriculture - department of chemistry, Mansoura, Egypt , ekram, a.m. el-mansoura university - faculty of science - department of chemistry, El-Mansoura, Egypt
From page
2741
To page
2752
Abstract
The influence of Salix babylonica extract (SBE) on carbon steel (CS) corrosion in 1 molar HCl at 25°C has been investigated. Mass loss (ML) method, Tafel polarization (TP), AC impedance (EIS) and electrochemical frequency modulation (EFM) tests have been used to derive the corrosion parameters. The data obtained from both tests (EIS and EFM) are comparable with those obtained from Tafel extrapolation tests, approving confirmation calculation of corrosion rates of the final. The inhibiting action of SBE was discussed in terms of blocking the CS surface by molecules adsorbed on the active sites. The adsorption was found to obey Temkin isotherm. The morphology of protected and unprotected CS has been examined by different techniques like: Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), energy dispersive X-ray (EDX) and atomic force microscope (AFM).
Keywords
Salix babylonica , Carbon steel , Corrosion , FTIR , SEM AFM
Journal title
Journal of Materials and Environmental Science
Journal title
Journal of Materials and Environmental Science
Record number
2583456
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