The copper corrosion in chloride medium with addition of blackberry leaf extract
Conference Object Open access M33
2023
Zdravković, Milica 
Grekulović, Vesna
Štrbac, Nada
Suljagić, Jasmin
Marković, Ivana
Gorgievski, Milan
Marković, Miljan
University of Belgrade, Technical Faculty in Bor
Proceedings - 30th International Conference Ecological Truth & Environmental Research - EcoTER'23, 20-23 June 2023, Serbia, 2023, 432-437
432
437
English
M33 - Conference paper at an international conference, printed in full
The influence of blackberry leaf extract (BLE) on copper corrosion in 0.5 M NaCl solution was investigated. The extract was made as evaporated blackberry leaf water extract. The cyclic voltammetry (CV) was performed in a blank solution and a solution with the addition of 15 g/L BLE. Surface characterization was performed using scanning electron microscope with energy dispersive X-ray spectroscopy (SEM-EDS). The copper surface characterization was performed on copper specimens after 1 day of immersion in a blank solution and in a solution with the addition of 15 g/L BLE. Three anodic current peaks and two cathodic current peaks were observed on the cyclic voltammogram without the addition of BLE. The CV results show that there was a reduction of anodic and cathodic current peaks in the presence of BLE, which clearly confirms that BLE reduced the amount of corrosion products. SEM-EDS results confirm that a smaller amount of copper oxide and chloride occurs on the copper surface in the presence of BLE in relation to the copper surface in the blank solution. The results show that BLE acts as a good copper corrosion inhibitor in a chloride environment.
green inhibitor, blackberry leaf, copper, corrosion, SEM-EDS
ISBN
978-86-6305-137-9