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Changes in electron...
Changes in electronic structure of copper films in aqueous solutions
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- Kvashnina, Kristina (författare)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik,Uppsala Universitet,Department of Physics
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- Butorin, Sergei (författare)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik,Uppsala Universitet,Fysik och Astronomi
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- Modin, Anders (författare)
- Uppsala universitet,Fysik II,Uppsala Universitet
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- Soroka, Inna (författare)
- Uppsala universitet,Fysiska institutionen,Uppsala Universitet,Materialkemi
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- Marcellini, Moreno (författare)
- Uppsala universitet,Fysiska institutionen,Uppsala Universitet,Materialfysik
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- Guo, Jinghua (författare)
- SKB, Sweden
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- Werme, Lars (författare)
- Uppsala universitet,Fysik II,Uppsala Universitet
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- Nordgren, Joseph (författare)
- Uppsala universitet,Fysik II,Uppsala Universitet
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(creator_code:org_t)
- 2007-05-03
- 2007
- Engelska.
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Ingår i: Journal of Physics. - : IOP Publishing. - 0953-8984 .- 1361-648X. ; 19:22, s. 226002-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The possibilities for using x-ray absorption spectroscopy (XAS) and resonant inelastic x-ray scattering (RIXS) to probe the Cu oxidation state and changes in the electronic structure during interaction between copper and ground-water solutions were examined. Surface modifications induced by chemical reactions of oxidized 100 Å Cu films with Cl−, SO42− and HCO3− ions in aqueous solutions with various concentrations were studied in situ using liquid cells. Copper corrosion processes in ground water were monitored for up to nine days. By comparing Cu 2p–3d, 4s transitions for a number of reference substances previously measured, changes in electronic structure of the Cu films were analysed. The XAS and RIXS spectral shape at the Cu edge, the chemical shift of the main line for Cu2+, and the energy positions of the observed satellites served as a tool for monitoring the changes during the reaction. It was found that the pH value and the Cl− concentration in solutions strongly affect the speed of the corrosion reaction.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Physics
- Fysik
- electronic structure effect copper film corrosion aq soln
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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