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

Autor:	Zora Pilić, Ivana Martinović
Rok vydání:	2020
Předmět:	corrosion biology Chemistry Process Chemistry and Technology lcsh:TP155-156 chemistry.chemical_element helichrysum italicum General Chemistry copper acid rain Helichrysum italicum biology.organism_classification Biochemistry Copper Corrosion Horticulture Acid rain lcsh:Chemical engineering
Zdroj:	Chemical and Biochemical Engineering Quarterly, Vol 33, Iss 4, Pp 449-457 (2020) Chemical and Biochemical Engineering Quarterly Volume 33 Issue 4
ISSN:	1846-5153 0352-9568
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. This work is licensed under a Creative Commons Attribution 4.0 International License.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54cd96045c56673daf586d3301de96be https://doi.org/10.15255/cabeq.2019.1614 Zobrazit plný text záznamu