Naslov
Eco-friendly copper corrosion inhibitors in sodium chloride solution

Autori
Hrepić, Antea ; Smoljko, Ivana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts of the 1st Central and Eastern European Conference on Physical Chemistry and Materials Science / Erceg, Matko ; Rotaru, Andrei ; Vrsalović, Ladislav - Craiova : SITECH, 2022, 64-64

ISBN
978-606-11-8164-3

Skup
1th Central and Eastern European Conference on Physical Chemistry and Materials Science (CEEC-PCMS1)

Mjesto i datum
Split, Hrvatska, 26.07.2022. - 30.07.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
copper ; gelatine ; Padina pavonica ; corrosion inhibition ; synergism

Sažetak
Copper, as one of the most commonly used building materials, is frequently subjected to a variety of damaging environmental forces. As a result, it is introduced to methods of protection, most commonly through the use of inhibitors. Gelatin is a protein diverse in amino acid composition, which has the ability to form thermoreversible gels. Thus, gelatin and a mixture of gelatin and ecologically and medically significant alga Padina pavonica, both of which are rich in naturally generated chemical compounds, were used as non-toxic copper coatings in 0.5 mol dm–3 NaCl solutions at different temperatures. Natural non-toxic compounds were deposited on the copper surface by the dip-coating method. The gelatin was characterized by Fourier transform infrared spectroscopy, while the corrosion behavior of copper and the inhibitory capabilities of the coatings were studied using electrochemical techniques, and the specimen's surface was examined using an optical microscope. Analyses revealed that the gelatin coating reduced the corrosion rate of copper in the chloride ion solution, whereas the gelatin and Padina pavonica coating increased the degree of copper inhibition in the test solution, classifying it as a mixed inhibitor. This is notably evident in the coating of gelatin and alga with a mass concentration of 0.8 g dm-3, which achieves corrosion inhibition of more than 90%. The higher protection of copper under the tested conditions can be explained by the synergism of the tested non-toxic organic compounds.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA