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Title:An electrochemical and spectroscopic study of surfaces on bronze sculptures exposed to urban environment
Authors:ID Mikić, Dajana (Author)
ID Otmačić Ćurković, Helena (Author)
ID Kosec, Tadeja (Author)
ID Peko, Neven (Author)
Files:URL URL - Source URL, visit https://www.mdpi.com/1996-1944/14/8/2063
 
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MD5: 2D5BD791724E8BE55B8E6CE90B489C77
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
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.
Keywords:bronze, corrosion, spectroscopy, FTIR, Raman, EIS, open access
Publication status:Published
Publication version:Version of Record
Publication date:20.04.2021
Publisher:Molecular Diversity Preservation International
Year of publishing:2021
Number of pages:str. 1-18
Numbering:Vol. 14, iss. 8
PID:20.500.12556/DiRROS-15877 New window
UDC:620.1/2
ISSN on article:1996-1944
DOI:10.3390/ma14082063 New window
COBISS.SI-ID:60871939 New window
Copyright:© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Note:Nasl. z nasl. zaslona; Opis vira z dne 22. 4. 2021; Št. članka 2063;
Publication date in DiRROS:16.05.2023
Views:788
Downloads:465
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MIKIĆ, Dajana, OTMAČIĆ ĆURKOVIĆ, Helena, KOSEC, Tadeja and PEKO, Neven, 2021, An electrochemical and spectroscopic study of surfaces on bronze sculptures exposed to urban environment. Materials [online]. 2021. Vol. 14, no. 8, p. 1–18. [Accessed 7 April 2025]. DOI 10.3390/ma14082063. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=15877
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Record is a part of a journal

Title:Materials
Shortened title:Materials
Publisher:MDPI
ISSN:1996-1944
COBISS.SI-ID:33588485 New window

Document is financed by a project

Funder:HRZZ - Croatian Science Foundation
Project number:P-2019-04-503
Funder:ARRS - Slovenian Research Agency
Project number:J7-9404
Name:Zaščita bronastih spomenikov v spremenljivem okolju

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:bron, korozija, spektroskopija, FTIR, Raman, EIS, odprti dostop


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