Influence of blackberry leaf extract on the copper corrosion behaviour in 0.5 M NaCl

Milica Zdravković; Vesna Grekulović; Jasmin Suljagić; Dalibor Stanković; Slađana Savić; Milan Radovanović; Uroš Stamenković

doi:10.1016/j.bioelechem.2023.108401

Influence of blackberry leaf extract on the copper corrosion behaviour in 0.5 M NaCl

Bioelectrochemistry. 2023 Jun:151:108401. doi: 10.1016/j.bioelechem.2023.108401. Epub 2023 Feb 17.

Authors

Milica Zdravković¹, Vesna Grekulović², Jasmin Suljagić³, Dalibor Stanković⁴, Slađana Savić⁴, Milan Radovanović², Uroš Stamenković²

Affiliations

¹ University of Belgrade, Technical Faculty in Bor, V. J. 12, 19210 Bor, Serbia. Electronic address: mboskovic@tfbor.bg.ac.rs.
² University of Belgrade, Technical Faculty in Bor, V. J. 12, 19210 Bor, Serbia.
³ University of Tuzla, Faculty of Technology, Dr. Tihomila Markovića br. 1, 75000 Tuzla, Bosnia and Herzegovina.
⁴ University of Belgrade, Faculty of Chemistry, Studentski trg 16, 11000 Beograd, Serbia.

PMID: 36821939
DOI: 10.1016/j.bioelechem.2023.108401

Abstract

The research presented in this paper is focused on blackberry leaf extract (BLE) as a environmentally friendly corrosion inhibitor for copper in 0.5 M NaCl. The caffeic acid, quercetin-3-O-glucoside and kaempferol-3-O-glucoside were identified in BLE by using high-performance liquid chromatography (HPLC-DAD). The BLE functional groups were identified (ATR-FTIR). The electrochemical methods (potentiodynamic polarization, electrochemical frequency modulation and electrochemical impedance spectroscopy) show that BLE acts as a mixed type of inhibitor (max. IE is 97.19 %). The corrosion process is controlled by diffusion (BLE lower than 15 g/L) and charge transfer (15 g/L BLE).

Keywords: Blackberry leaf; Chloride; Copper; Corrosion.

MeSH terms

Copper* / chemistry
Corrosion
Plant Extracts / chemistry
Rubus*
Sodium Chloride

Substances

Copper
Sodium Chloride
Plant Extracts