Open AccessCorrosion Inhibition of Carbon Steel in 2.0M HCl Solution Using Novel Extract (Pulicaria undulate)
Publication year - 2021
Publication title -
biointerface research in applied chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 11
ISSN - 2069-5837
DOI - 10.33263/briac125.64156427
Subject(s) - corrosion , adsorption , dielectric spectroscopy , carbon steel , langmuir adsorption model , polarization (electrochemistry) , materials science , corrosion inhibitor , electrode , nuclear chemistry , chemistry , electrochemistry , chemical engineering , analytical chemistry (journal) , inorganic chemistry , metallurgy , chromatography , organic chemistry , engineering
Plant Pulicaria undulate (PU) extract is examined as a corrosion inhibitor for carbon steel (CS) dipped in 2.0M HCl. The study was conducted utilizing ac impedance spectroscopy (EIS), Mass loss (ML), polarization (PDP) tests, and surface checks were utilized to illustrate the importance of this PU extract to prevent the corrosion process for CS. The influence of temperature and concentration of PU on the efficacy of inhibition were tested. The corrosion mechanism occurs when the PU extract molecules block the active center in the electrode surface. Langmuir isotherm is the isotherm that is applied in the process of adsorption. The effect of temperature at various temperatures on the corrosion efficacy was investigated in case of the presence and absence of the extract. Finally, thermodynamic parameters for the activation and adsorption processes were determined. Results of all methods used were in good agreement.