Naslov
Study of corrosion inhibition for mild steel in NaCl solution by propolis extract

Autori
Grudić, Veselinka ; Bošković, Ivana ; Martinez, Sanja ; Knežević, Bojana

Izvornik
Macedonian Journal of Chemistry and Chemical engineering (1857-5552) 37 (2018), 2; 203-213

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

Ključne riječi
carbon steel ; propolis ; corrosion ; inhibition efficiency

Sažetak
This work studies the corrosion inhibition of X52 5L carbon steel in a 0.51 mol dm–3 sodium chloride solution in the presence of propolis extract. The inhibition efficiency of propolis extract was tested by its addition to the working solution and by making a solid propolis coating on the electrode surface. The results of potentiodynamic polarization method shown that propolis extract acts as a corrosion inhibitor of the anodic type whose efficiency increases with increasing temperature and with stirring of the solution. Electrochemical impendance spectroscopy confirmed the formation of a protective layer by adsorption of propolis extract on the electrode surface. The results of Fourier transform infrared spectroscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy surface tests are consistent with the results of electrochemical testing.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA