Tarnishing and pitting corrosion mechanisms revealed by nanoparticles on the gold foil of Western Han Dynasty in Taiyuan, Shanxi, China through a multi-analytical approach
Source abstract
Abstract
To figure out optical and corrosion mechanisms of tarnishing and pitting corrosion of the archaeological gold foil, ESEM-EDS, XRD, XPS were used to obtain chemical composition of different depths and observe surface topography. The results show Ag is enriched on the surface, mainly as Ag 2 O nanoparticles, and Au is enriched internally, due to the selective corrosion of Ag. Optical mechanism of gold tarnishing is surface plasmon resonance (SPR) of Ag 2 O nanoparticles. The colour darkens as nanoparticle size increases. Flaming in the atmosphere results in the accelerated oxidation of Ag and edge-off, leading to electrochemical crevice, pitting corrosion and perforation during burial.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Cultural Heritage Materials Analysis · Conservation Techniques and Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Bastidas, D. M. et al. An XPS Study of Tarnishing of a Gold Mask from a Pre-Columbian Culture. Corros. Sci. 50, 1785–1788 (2008).10.1016/j.corsci.2008.04.009 ↗
2. Gard, F. et al. Application of Surface Science Techniques to Study a Gilded Egyptian Funerary Mask: A Multi‐analytical Approach. Surf. Interface Anal. 51, 1001–1017 (2019).10.1002/sia.6685 ↗
3. Tissot, I. et al. A Multi-Analytical Approach to Gold in Ancient Egypt: Studies on Provenance and Corrosion. Spectrochimica Acta Part B: At. Spectrosc. 108, 75–82 (2015).10.1016/j.sab.2015.03.012 ↗
4. Cardell, C. & Guerra, I. Natural Corrosion-Induced Gold Nanoparticles Yield Purple Color of Alhambra Palaces Decoration. Sci. Adv. 8, eabn2541 (2022).10.1126/sciadv.abn2541 ↗
5. Liritzis, I. et al. Nano–Microcrystals Revealed on Tang Dynasty Gilded Bronze Using Advanced TEM–SEM and Synchrotron Methods. Nanoscale 16, 15758–15769 (2024).10.1039/D4NR02030H ↗
6. Wu, Q. et al. A Modern Look at a Medieval Bilayer Metal Leaf: Nanotomography of Zwischgold. Nanoscale 14, 15165–15180 (2022).10.1039/D2NR03367D ↗
7. Hou, M., Huo, D., Yang, Y., Yang, S. & Chen, H. Using Mask R-CNN to Rapidly Detect the Gold Foil Shedding of Stone Cultural Heritage in Images. Herit. Sci. 12, 46 (2024).
8. Wu, Q. et al. Does Substrate Colour Affect the Visual Appearance of Gilded Medieval Sculptures? Part II: SEM–EDX Observations on Gold Leaf Samples Taken from Medieval Wooden Sculptures. Herit. Sci. 8, 119 (2020).
9. MacLennan, D. et al. Visualizing and Measuring Gold Leaf in Fourteenth- and Fifteenth-Century Italian Gold Ground Paintings Using Scanning Macro X-Ray Fluorescence Spectroscopy: A New Tool for Advancing Art Historical Research. Herit. Sci. 7, 25 (2019).
10. Gong, Z. et al. Analysis of the Manufacturing Craft of the Painted Gold Foils Applied on the Lacquerware of the Jin Yang Western Han Dynasty Tomb in Taiyuan, Shanxi, China. Herit. Sci. 12, 207 (2024).
11. Ferraria, A. M., Carapeto, A. P. & do Rego, A. M. B. X-Ray Photoelectron Spectroscopy: Silver Salts Revisited. Vacuum 86, 1988–1991 (2012).10.1016/j.vacuum.2012.05.031 ↗
12. Carbon (C), Z=6, & Carbon Compounds. https://xpsdatabase.net/carbon-c-z6-carbon-compounds/ (accessed 2024-08-15).
13. Gold (Au), Z=79, & Gold Compounds. https://xpsdatabase.net/gold-au-z79-gold-compounds/ (accessed 2024-08-16).
14. Shao, Y. et al. Formation Mechanism of Copper-Gilded Coronet Ornaments Excavated from a Sui or Early Tang Tomb Situated in Xi’an, Shaanxi. Herit. Sci. 11, 162 (2023).
15. Oxygen (O), Z=8. https://xpsdatabase.net/oxygen-o-z8/ (accessed 2024-08-16).
16. Silver Spectra – Ag2O. https://xpsdatabase.net/silver-spectra-ag2o/ (accessed 2024-08-16).
17. Silver Spectra – AgO. https://xpsdatabase.net/silver-spectra-ago/ (accessed 2024-08-16).
18. Silver Spectra – Ag2(CO3). https://xpsdatabase.net/silver-spectra-ag2co3/ (accessed 2024-08-16).
19. Silver Spectra – Ag2(SO4) – anhydrous. https://xpsdatabase.net/silver-spectra-ag2so4-anhydrous/ (accessed 2024-08-16).
20. Sulfur (S), Z=16, & Sulfur Compounds. https://xpsdatabase.net/sulfur-s-z16-sulfur-compounds/ (accessed 2024-08-16).
21. Yang, F. et al. Construction of Ag/AgCl Nanostructures from Ag Nanoparticles as High-Performance Visible-Light Photocatalysts. J. Nanopart. Res. 18, 335 (2016).
22. Nassau, K. The Fifteen Causes of Color: The Physics and Chemistry of Color. Color Res. Application 12, 4–26 (1987).10.1002/col.5080120105 ↗
23. Sun, W. et al. Ag–Ag2O Composite Structure with Tunable Localized Surface Plasmon Resonance as Ultrastable, Sensitive and Cost-Effective SERS Substrate. J. Alloy. Compd. 839, 155729 (2020).10.1016/j.jallcom.2020.155729 ↗
24. Driskell, J. D., Lipert, R. J. & Porter, M. D. Labeled Gold Nanoparticles Immobilized at Smooth Metallic Substrates: Systematic Investigation of Surface Plasmon Resonance and Surface-Enhanced Raman Scattering. J. Phys. Chem. B 110, 17444–17451 (2006).10.1021/jp0636930 ↗
25. Bastús, N. G., Merkoçi, F., Piella, J. & Puntes, V. Synthesis of Highly Monodisperse Citrate-Stabilized Silver Nanoparticles of up to 200 Nm: Kinetic Control and Catalytic Properties. Chem. Mater. 26, 2836–2846 (2014).10.1021/cm500316k ↗
26. Shume, W. M., Murthy, H. C. A. & Zereffa, E. A. A Review on Synthesis and Characterization of Ag2O Nanoparticles for Photocatalytic Applications. J. Chem. 2020, 5039479 (2020).10.1155/2020/5039479 ↗
27. Manikandan, V. et al. Green Synthesis of Silver Oxide Nanoparticles and Its Antibacterial Activity against Dental Pathogens. 3 Biotech 7, 72 (2017).10.1007/s13205-017-0670-4 ↗
28. Gao, X. et al. Study of Structure and Optical Properties of Silver Oxide Films by Ellipsometry, XRD and XPS Methods. Thin Solid Films 455–456, 438–442 (2004).10.1016/j.tsf.2003.11.242 ↗
29. Jakimińska, A. & Macyk, W. Photochemical Transformations of AgCl in the Context of Its Eventual Photocatalytic Applications. J. Photochemistry Photobiol. A: Chem. 445, 115048 (2023).10.1016/j.jphotochem.2023.115048 ↗
30. Li, R. et al. In Situ Identification of the Metallic State of Ag Nanoclusters in Oxidative Dispersion. Nat. Commun. 12, 1406 (2021).
31. Corrosion of Metallic Biomaterials. In Metals for Biomedical Devices; Woodhead Publishing, 2019; pp 131–152.10.1016/B978-0-08-102666-3.00004-3 ↗
32. Silver (Ag), Z=47, & Silver Compounds. https://xpsdatabase.net/silver-ag-z47-silver-compounds/ (accessed 2024-08-15).
33. EDS. EAG Laboratories. https://www.eag.com/techniques/spectroscopy/energy-dispersive-x-ray-spectroscopy-eds/ (accessed 2024-08-18).
34. Quanta 200F: SEM, ESEM, Lithography & Probe Station – The KNI Lab at Caltech. https://lab.kni.caltech.edu/Quanta_200F:_SEM,_ESEM,_Lithography_%26_Probe_Station (accessed 2024-08-18).
35. X-ray Diffraction | XRD Services | EAG Laboratories. https://www.eag.com/techniques/spectroscopy/x-ray-diffraction-xrd/ (accessed 2024-08-18).
36. D8 DISCOVER. https://www.bruker.com/zh/products-and-solutions/diffractometers-and-x-ray-microscopes/x-ray-diffractometers/d8-discover-family/d8-discover.html (accessed 2024-08-18).
37. Analytical Instrumentation Center - X-ray Photoelectron Spectrometer (AXIS Supra) (in Chinese). https://aic.pku.edu.cn/?page=sbmx¶m=yqsb&pid=105 (accessed 2024-08-18).