Naslov
Inhibition of Copper Corrosion by p-Hydroxybenzoic Acid in NaCl Solution
(Inhibition of copper corrosion by p-hydroxybenzoic acid in NaCl solution)

Autori
Gudić, Senka ; Radošević, Jagoda ; Kliškić, Maja ; Smoljko, Ivana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 4th Croatian Symposium on Electrochemistry / Gojo, Miroslav ; Mandić, Zoran - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2006, 103-105

ISBN
953-6894-27-0

Skup
4th Croatian Symposium on Electrochemistry

Mjesto i datum
Primošten, Hrvatska, 28.05.2006. - 01.06.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
Adsorption isotherm; Copper; Corrosion; Inhibition; p-hydroxybenzoic acid.
(adsorption isotherm; copper; corrosion; inhibition; p-hydroxybenzoic acid)

Sažetak
The inhibitive action of p-hydroxybenzoic acid (p-HBA) on the corrosion behaviour of copper was investigated in a 0.5 M NaCl solution. The results of polarization measurements indicate that the p-HBA acts as a mixed-type inhibitor. The values of standard free energy of adsorption, as calculated from the Freundlich adsorption isotherm, indicate that p-HBA adsorbs on copper by the physical adsorption mechanism. The impedance spectra performed at open circuit potential are determined by two time constants, the first one relating to the charge transfer process while the second one includes mass transport of copper ions through the surface layer. The thickness and protective properties of the surface layer increase with the increase of inhibition concentration and immersion time.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

Napomena
Programme and Book of abstract of the 4th Croatian Symposium on Electrochemistry ; ISBN 953-6894-26-2

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