Corrosion Inhibitive Property of Environmentally Benign Syzygium jambos Leaf Extract on Mild Steel in 1 M HCl

Autor: Supriya Bangera, Vijaya D. P. Alva
Rok vydání: 2020
Předmět:
Zdroj: Journal of Failure Analysis and Prevention. 20:734-743
ISSN: 1864-1245
1547-7029
DOI: 10.1007/s11668-020-00869-y
Popis: Inhibition action of Syzygium jambos leaf extract on corrosion of mild steel in 1 M HCl was evaluated through mass loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopic techniques. Temperature studies revealed a decrease in efficiency with rise in temperature and corrosion activation energies increased in the presence of the extract. Inhibition action of the inhibitor is explained by adsorption process, and it follows Langmuir adsorption isotherm. Thermodynamic data for inhibitor adsorption suggest the occurrence of physical and chemical adsorption of the extract on mild steel in 1 M HCl solution. The results were supplemented by FTIR and scanning electron microscopy.
Databáze: OpenAIRE