Naslov
Corrosion Protection on Copper by Imidazole and its Derivatives

Autori
Gašparac, Rahela ; Stupnišek-Lisac, Ema

Izvornik
Corrosion (Houston, Tex.) (0010-9312) 55 (1999), 11; 1031-1039

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
copper; hydrochloric acid; imidazoles; inhibition; EIS; SEM

Sažetak
The objective of this work was to investigate the efficiency of imidazole and its derivatives 4-methylimidazole, 4-methyl-5-hydroxymethylimidazole, 1-phenyl-4-methylimidazole, 1-(p-tolyl)-4-methylimidazole for corrosion inhibition of copper in 0.5M hydrochloric acid. Corrosion inhibition was studied using impedance spectroscopy and potentiodynamic methods. Polarization resistances calculated from the AC impedance measurements are in good agreement with those obtained from d.c. polarization measurements. The copper samples were also analysed by scanning electron microscopy (SEM) and X-rays microanalysis. These studies have shown that 1-(p-tolyl)-4-methylimidazole has the best inhibitory efficiency.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA