| Title: | An electrochemical and spectroscopic study of surfaces on bronze sculptures exposed to urban environment |
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| Authors: | ID Mikić, Dajana (Author)
ID Otmačić Ćurković, Helena (Author)
ID Kosec, Tadeja (Author)
ID Peko, Neven (Author) |
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| Files: |  URL - Source URL, visit https://www.mdpi.com/1996-1944/14/8/2063
 PDF - Presentation file, download (4,82 MB)
MD5: 2D5BD791724E8BE55B8E6CE90B489C77
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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: | Polluted urban environment enhances dissolution of patina and underlying bronze material of recent and historical bronze sculptures exposed outdoors. In this work, two bronze statues, situated in one of the most polluted Croatian cities, were examined in order to characterize composition of patina and its electrochemical stability. The composition of patina on several positions on each sculpture was determined by EDS, Raman spectroscopy, and FTIR measurements. Electrochemical impedance spectroscopy measurements were conducted in order to evaluate the corrosion stability of both patina and underlying bronze. Results obtained in this work show that the two examined bronze sculptures were covered with patina layer that was mainly composed of copper sulfides and sulphates, which is in accordance with the high concentrations of H2S and SO2 in the atmosphere. However, the variations in the appearance of FTIR and Raman spectra revealed that the amount of each species differed from spot to spot, as well as the fact that other compounds, such as carbonates, were present at some areas. This difference in patina composition was reflected in electrochemical behavior as observed by electrochemical impedance spectroscopy. |
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| Keywords: | bronze, corrosion, spectroscopy, FTIR, Raman, EIS, open access |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 20.04.2021 |
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| Publisher: | Molecular Diversity Preservation International |
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| Year of publishing: | 2021 |
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| Number of pages: | str. 1-18 |
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| Numbering: | Vol. 14, iss. 8 |
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| PID: | 20.500.12556/DiRROS-15877  |
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| UDC: | 620.1/2 |
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| ISSN on article: | 1996-1944 |
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| DOI: | 10.3390/ma14082063 |
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| COBISS.SI-ID: | 60871939 |
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| Copyright: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 22. 4. 2021;
Št. članka 2063;
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| Publication date in DiRROS: | 16.05.2023 |
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| Views: | 291 |
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| Downloads: | 172 |
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