| Title: | Effect of sulfide in a 0.2 M NaCl solution on copper and pre-oxidized copper in oxic conditions |
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| Authors: | ID Prijatelj, Klara (Author)
ID Kosec, Tadeja (Author) |
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| Files: |  URL - Source URL, visit https://doi.org/10.1016/j.surfin.2025.107387
 PDF - Presentation file, download (18,08 MB)
MD5: 2E4A194DEFA52D1C88C24E5EBA07659C
URL - Research data, visit http://hdl.handle.net/20.500.12556/DiRROS-23268
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | This study investigated copper and pre-oxidized copper immersed in 0.2 M NaCl solutions containing different concentrations of sulfide ions. In order to investigate the corrosion processes, the corrosion potential and electrochemical impedance at room temperature and at an elevated temperature were measured for 24 h during and after exposure to the chloride solution with different sulfide concentrations in aerated conditions. The surfaces of the pre-oxidized copper were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy (EDS), a focused ion beam scanning electron microscopy (FIB-SEM), and Raman spectroscopy. It was shown that the concentration of sulfide ions in the chloride environments, in addition to the temperature itself, greatly affect the film formation in oxic conditions. The thickness of the films observed corresponds well to those calculated using cathodic stripping voltammetry. The mechanism of corroding copper in chloride/sulfide system was proposed. |
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| Keywords: | copper, pre-oxidized copper, chloride and sulfide environment, electrochemical properties, surface characterization, Raman, cyclic voltammetry |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 08.08.2025 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2025 |
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| Number of pages: | str. 1-18 |
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| Numbering: | Vol. 72, [article no.] 107387 |
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| PID: | 20.500.12556/DiRROS-23437  |
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| UDC: | 544.5/.6 |
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| ISSN on article: | 2468-0230 |
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| DOI: | 10.1016/j.surfin.2025.107387 |
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| COBISS.SI-ID: | 246736643 |
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| Copyright: | © 2025 The Authors |
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| Publication date in DiRROS: | 29.08.2025 |
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| Views: | 403 |
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| Downloads: | 260 |
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