Silybum marianum extract as a natural source inhibitor for 304 stainless steel corrosion in 1.0 M HCl
Silybum marianum extract as a natural source inhibitor for 304 stainless steel corrosion in 1.0 M HCl
N. Soltani(Payame Noor University (PNU)); N. Tavakkoli(Payame Noor University (PNU)); M. Khayat Kashani(University of Kashan); A. Mosavizadeh(Payame Noor University (PNU)); E.E. Oguzie(Federal University of Technology Owerri); M.R. Jalali(Payame Noor University (PNU))
20권 5호, 3217~3227쪽
초록
The use of Silybum marianum leaves extract as a 304 stainless steel corrosion inhibitor in 1.0 M HCl solution was investigated by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. Potentiodynamic polarization curves indicated that S. marianum extract behaves as mixed-type inhibitor. The adsorption of the extract constituents was further discussed in view of Langmuir adsorption isotherm. The effect of temperature on the inhibition efficiency was studied. Quantum chemical parameters were also calculated, which provided reasonable theoretical explanation for the adsorption and inhibition behavior of S. marianum extract on the 304 stainless steel.
Abstract
The use of Silybum marianum leaves extract as a 304 stainless steel corrosion inhibitor in 1.0 M HCl solution was investigated by weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. Potentiodynamic polarization curves indicated that S. marianum extract behaves as mixed-type inhibitor. The adsorption of the extract constituents was further discussed in view of Langmuir adsorption isotherm. The effect of temperature on the inhibition efficiency was studied. Quantum chemical parameters were also calculated, which provided reasonable theoretical explanation for the adsorption and inhibition behavior of S. marianum extract on the 304 stainless steel.
- 발행기관:
- 한국공업화학회
- 분류:
- 화학공학