An in-situ X-ray absorption spectroelectrochemistry study of the response of artificial chloride corrosion layers on copper to remedial treatment
- Author
- Mieke Adriaens (UGent) , Mark Dowsett, Gareth Jones, Karen Leyssens and Sergey Nikitenko
- Organization
- Abstract
- In the experiments described in this study, we make use of X-ray absorption spectroscopy (XAS) at the K-edge of copper for monitoring the surface-solution interface of corroded metals in-situ in a sodium sesquicarbonate solution. We show conclusively that, unlike previously published XRD measurements, the XAS spectra are almost wholly characteristic of the contaminated solution and not the corroded surface, in cases where the sesquicarbonate is effective at removing chlorides. This is true even when there is only similar to 125 mu m of fluid over the sample, which demonstrates that there is very effective absorption of the Cu K alpha radiation from the surface by copper in solution. As a function of time we observe a rising intensity in the XANES and EXAFS regions which is accompanied by a proportional increase in the degree of EXAFS modulation. The latter is due to the fact that a significant proportion of the corrosion product goes into solution, rather than being converted to a stable compound on the surface. Moreover, the spectra show that the local atomic environment of the copper in solution is extremely similar to that in the surface. Overall from both XAS and previously performed XRD data we can conclude that the chlorine containing corrosion products become detached from the surface and go partly into solution, while a thin cuprite layer forms (or is already present at) at the original metal surface.
- Keywords
- STABILIZATION, SPECTROSCOPY, MONITOR, OXIDE, ION
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-514517
- MLA
- Adriaens, Mieke, et al. “An In-Situ X-Ray Absorption Spectroelectrochemistry Study of the Response of Artificial Chloride Corrosion Layers on Copper to Remedial Treatment.” JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, vol. 24, no. 1, 2009, pp. 62–68, doi:10.1039/b814181a.
- APA
- Adriaens, M., Dowsett, M., Jones, G., Leyssens, K., & Nikitenko, S. (2009). An in-situ X-ray absorption spectroelectrochemistry study of the response of artificial chloride corrosion layers on copper to remedial treatment. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 24(1), 62–68. https://doi.org/10.1039/b814181a
- Chicago author-date
- Adriaens, Mieke, Mark Dowsett, Gareth Jones, Karen Leyssens, and Sergey Nikitenko. 2009. “An In-Situ X-Ray Absorption Spectroelectrochemistry Study of the Response of Artificial Chloride Corrosion Layers on Copper to Remedial Treatment.” JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 24 (1): 62–68. https://doi.org/10.1039/b814181a.
- Chicago author-date (all authors)
- Adriaens, Mieke, Mark Dowsett, Gareth Jones, Karen Leyssens, and Sergey Nikitenko. 2009. “An In-Situ X-Ray Absorption Spectroelectrochemistry Study of the Response of Artificial Chloride Corrosion Layers on Copper to Remedial Treatment.” JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 24 (1): 62–68. doi:10.1039/b814181a.
- Vancouver
- 1.Adriaens M, Dowsett M, Jones G, Leyssens K, Nikitenko S. An in-situ X-ray absorption spectroelectrochemistry study of the response of artificial chloride corrosion layers on copper to remedial treatment. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 2009;24(1):62–8.
- IEEE
- [1]M. Adriaens, M. Dowsett, G. Jones, K. Leyssens, and S. Nikitenko, “An in-situ X-ray absorption spectroelectrochemistry study of the response of artificial chloride corrosion layers on copper to remedial treatment,” JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, vol. 24, no. 1, pp. 62–68, 2009.
@article{514517,
abstract = {{In the experiments described in this study, we make use of X-ray absorption spectroscopy (XAS) at the K-edge of copper for monitoring the surface-solution interface of corroded metals in-situ in a sodium sesquicarbonate solution. We show conclusively that, unlike previously published XRD measurements, the XAS spectra are almost wholly characteristic of the contaminated solution and not the corroded surface, in cases where the sesquicarbonate is effective at removing chlorides. This is true even when there is only similar to 125 mu m of fluid over the sample, which demonstrates that there is very effective absorption of the Cu K alpha radiation from the surface by copper in solution. As a function of time we observe a rising intensity in the XANES and EXAFS regions which is accompanied by a proportional increase in the degree of EXAFS modulation. The latter is due to the fact that a significant proportion of the corrosion product goes into solution, rather than being converted to a stable compound on the surface. Moreover, the spectra show that the local atomic environment of the copper in solution is extremely similar to that in the surface. Overall from both XAS and previously performed XRD data we can conclude that the chlorine containing corrosion products become detached from the surface and go partly into solution, while a thin cuprite layer forms (or is already present at) at the original metal surface.}},
author = {{Adriaens, Mieke and Dowsett, Mark and Jones, Gareth and Leyssens, Karen and Nikitenko, Sergey}},
issn = {{0267-9477}},
journal = {{JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY}},
keywords = {{STABILIZATION,SPECTROSCOPY,MONITOR,OXIDE,ION}},
language = {{eng}},
number = {{1}},
pages = {{62--68}},
title = {{An in-situ X-ray absorption spectroelectrochemistry study of the response of artificial chloride corrosion layers on copper to remedial treatment}},
url = {{http://dx.doi.org/10.1039/b814181a}},
volume = {{24}},
year = {{2009}},
}
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