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An in-situ X-ray absorption spectroelectrochemistry study of the response of artificial chloride corrosion layers on copper to remedial treatment

Annemie Adriaens UGent, Mark Dowsett, Gareth Jones, Karen Leyssens and Sergey Nikitenko (2009) JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. 24(1). p.62-68
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.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
keyword
STABILIZATION, SPECTROSCOPY, MONITOR, OXIDE, ION
journal title
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
J. Anal. At. Spectrom.
volume
24
issue
1
pages
62 - 68
Web of Science type
Article
Web of Science id
000263264100006
JCR category
SPECTROSCOPY
JCR impact factor
3.435 (2009)
JCR rank
3/39 (2009)
JCR quartile
1 (2009)
ISSN
0267-9477
DOI
10.1039/b814181a
language
English
UGent publication?
yes
classification
A1
id
514517
handle
http://hdl.handle.net/1854/LU-514517
date created
2009-03-05 11:04:12
date last changed
2009-03-06 11:25:56
@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, Annemie and Dowsett, Mark and Jones, Gareth and Leyssens, Karen and Nikitenko, Sergey},
  issn         = {0267-9477},
  journal      = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY},
  keyword      = {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},
}

Chicago
Adriaens, Annemie, 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.
APA
Adriaens, Annemie, 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.
Vancouver
1.
Adriaens A, 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.
MLA
Adriaens, Annemie, Mark Dowsett, Gareth Jones, 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 24.1 (2009): 62–68. Print.