Assessment of Eichhornia crassipes as a Green Corrosion Inhibitor for AISI 1005 Steel in Acidic Environments

Autor: T. E. Schmitzhaus, E. D. B. Policarpi, L. Simoni, W. C. Schmitzhaus, M. A. D. N. Cristaldo
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Chemical and Biochemical Engineering Quarterly, Vol 38, Iss 3, Pp 219-228 (2024)
Druh dokumentu: article
ISSN: 0352-9568
1846-5153
DOI: 10.15255/CABEQ.2024.2295
Popis: Green corrosion inhibitors have shown considerable promise as a viable alternative to synthetic inhibitors for preventing corrosion in various applications. In this study, the aquatic plant Eichhornia crassipes (water hyacinth), native to the Pantanal region, was evaluated for its potential as a green corrosion inhibitor for AISI 1005 steel in an electrolyte containing 0.01 mol L–1 HCl. The plant extraction was conducted using both maceration and ultrasound with the electrolyte. The study employed open circuit potential (OCP), potentiodynamic polarization (PDP) using electrochemical techniques, and weight loss (WL) tests were performed. The results indicated a reduction in the rate of corrosive reactions on the steel surface, particularly in cathodic reactions, with corrosion inhibition efficiency reaching nearly 90 %.
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