Experimental/computational assessments of API steel in 6 M H2SO4 medium containing novel pyridine derivatives as corrosion inhibitors
Farag, AA; EslamA.Mohamed; Sayed, GH; Kurls Ekram Anwer;
Abstract
In this work, two pyridine derivatives were synthesized and explored their inhibitive influence on the API carbon steel corrosion in a 6 M H2SO4 solution. The compound was examined at different concentrations to optimized the best concentration for the corrosion inhibition effect. Gravimetric measurements, potentiodynamic polarization measurement (PDP), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and theoretical methods were used to evaluating the inhibition efficiency. The obtained adsorption data achieved the model of Langmuir isotherm. The PDP tests proposed that pyridine derivatives are mixed-type inhibitors. The EIS parameters demonstrate that the double-layer capacitance (Cdl) decreases with the increase of inhibitor concentration, which implies a reduces dielectric constant. The parameters derived from the theoretical quantum chemical calculations were found adequately correlated with the obtained experimental results.
Other data
Title | Experimental/computational assessments of API steel in 6 M H2SO4 medium containing novel pyridine derivatives as corrosion inhibitors | Authors | Farag, AA; EslamA.Mohamed ; Sayed, GH; Kurls Ekram Anwer | Keywords | API carbon steel;Acid corrosion;SEM;Theoretical study;Molecular dynamics simulations;MILD-STEEL;X65 STEEL;SULFURIC-ACID;CARBON-STEEL;PYRAN DERIVATIVES;COPPER CORROSION;N80 STEEL;SURFACE;PERFORMANCE;ADSORPTION | Issue Date | 2021 | Publisher | ELSEVIER | Journal | Journal of Molecular Liquids | Volume | 330 | ISSN | 0167-7322 | DOI | 10.1016/j.molliq.2021.115705 | Scopus ID | 2-s2.0-85101316089 | Web of science ID | WOS:000640021400089 |
Attached Files
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
Ahmed A. Farag 2021 Journal of Molecular Liquids.pdf | 4.18 MB | Adobe PDF | Request a copy |
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.