Affiliation:
1. Faculty of Science and Education, Department of Chemistry, University of Mostar
Abstract
The inhibition of copper corrosion by Helichrysum italicum extract (HI) in simulated acid rain was investigated using electrochemical techniques. Results indicate an increase in corrosion inhibition efficiency with the HI extract concentration. The inhibitive process was assumed to occur via adsorption of the extract on the metal surface. The thermodynamic data indicated physical adsorption and followed the Freundlich isotherm. The effect of temperature on the copper corrosion was studied. The value of the activation energy confirmed physisorption of extract molecules on the copper surface. The concentration of Cu ions released into solution, measured by atomic absorption spectrometry, was in accordance with the electrochemical results.
Publisher
Croatian Society of Chemical Engineers/HDKI
Subject
Process Chemistry and Technology,General Chemistry,Biochemistry
Cited by
12 articles.
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