ETHANOL EXTRACT OF FAGUS SYLVATICA LEAVES AS AN ECO-FRIENDLY INHIBITOR FOR CARBON STEEL CORROSION IN ACIDIC SOLUTIONS
作者： S. Caprarescu , C. Lingvay , D. I. Vaireanu , I. Lingvay , I. Maior
DOI:
关键词: Fagus sylvatica 、 Galvanostat 、 Tafel equation 、 Inorganic chemistry 、 Polarization (electrochemistry) 、 Corrosion monitoring 、 Corrosion 、 Dielectric spectroscopy 、 Chemistry 、 Carbon steel
摘要: Carbon steel corrosion inhibition by Fagus Sylvatica leaves ethanol extract has been studied in 0.5 M H 2 SO 4 solution using open circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy methods of monitoring. The studies were conducted a Voltalab 40 Radiometer Analytical potentiostat/galvanostat VoltaMaster 4.0 for acquiring processing the experimental data. results study revealed that different concentration inhibits carbon corrosion. Inhibition efficiency was found to vary with concentration. From Tafel Nyquist diagrams, one can observe presence increases resistance, shift potential towards more positive values decreases rate. calculated obtained both are well correlated.
参考文章(1)
Habib Ashassi-Sorkhabi, Moosa Es’haghi, Corrosion inhibition of mild steel in hydrochloric acid by betanin as a green inhibitor Journal of Solid State Electrochemistry. ,vol. 13, pp. 1297- 1301 ,(2009) , 10.1007/S10008-008-0673-5