Resumo

ATTIA, Azza A.; ELMELEGY, Essam M.; EL BATOUTI, Mervette  e  AHMED, Abdel-Moneim M.. Studying Copper Electropolishing Inhibition in Presence of Some Organic Alcohols. Port. Electrochim. Acta [online]. 2016, vol.34, n.2, pp.105-118. ISSN 0872-1904.  https://doi.org/10.4152/pea.201602105.

Electro polishing is defined as anodic corrosion. The issue of the effects of corrosion on structural integrity of metal surfaces has been a question of concern for some time. The uses of chemical corrosion inhibitors are common in production and processing operations. Nevertheless, the challenge is to develop a new class of corrosion inhibitors to protect the materials, due to the economic importance of copper there are several researches deals with acceleration and inhibition of this process. In this paper the electropolishing process inhibited with different ratio by addition of some organic alcohols (methanol, ethanol,propanol, and isopropanol) by addition with concentration (2, 5, 10, 15, 20, 25 and 30 %) .The results reveal that these organic alcohols have a strongest inhibitive effect ranging from 8.7 - 53.8 % and the thermodynamic parameters were present.

Palavras-chave : Electropolishing of copper; organic alcohols; limiting current; inhibition of corrosion; thermodynamic parameters.

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