科研之友
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摘要
A study on the use of Cynara scolymus (C. scolymus) as a green corrosion inhibitor for 1018 carbon steel in 0.5 M sulfuric acid has been carried out by using weight loss tests, potentiodynamic polarization curves and electrochemical impedance spectroscopy measurements. It was found that C. scolymus is a good corrosion inhibitor with its efficiency increasing with the inhibitor concentration but it decreases with an increase in the temperature. C. scolymus is a mixed type of inhibitor, which is physically adsorbed on to the metal surface by following a Temkin adsorption isotherm. It forms a protective film by the contained compounds such as fatty acids, phenolics as quinic acid and sterols such as stigmasterol and gamma-sitosterol
- 出版日期2016-9
