Effect of Helichrysum italicum on the Corrosion of Copper in Simulated Acid Rain Solution

Autor:	Z. Pilić, I. Martinović
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	copper acid rain corrosion helichrysum italicum Chemical engineering TP155-156
Zdroj:	Chemical and Biochemical Engineering Quarterly, Vol 33, Iss 4, Pp 449-457 (2020)
Druh dokumentu:	article
ISSN:	0352-9568 1846-5153
DOI:	10.15255/CABEQ.2019.1614
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/94c4d8e45f054fd8b8c4ed19e7e53c03 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF