In-situ x-ray absorption study of copper films in ground watersolutions

Journal Article · Mon Oct 29 00:00:00 EDT 2007 · Chemical Physics Letters

OSTI ID:919274

Kvashnina, K O; Butorin, S M; Modin, A; Soroka, I; Marcellini, M; Nordgren, J; Guo, J -H; Werme, L

This study illustrates how the damage from copper corrosion can be reduced by modifying the chemistry of the copper surface environment. The surface modification of oxidized copper films induced by chemical reaction with Cl{sup -} and HCO{sub 3}{sup -} in aqueous solutions was monitored by in situ X-ray absorption spectroscopy. The results show that corrosion of copper can be significantly reduced by adding even a small amount of sodium bicarbonate. The studied copper films corroded quickly in chloride solutions, whereas the same solution containing 1.1 mM HCO{sub 3}{sup -} prevented or slowed down the corrosion processes.

• Research Organization: COLLABORATION - UppsalaUniversity
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 919274
• Report Number(s): LBNL-63550; CHPLBC; R&D Project: 458111; TRN: US0806340
• Journal Information: Chemical Physics Letters, Vol. 447, Issue 1-2; Related Information: Journal Publication Date: October 15,2007; ISSN 0009-2614
• Country of Publication: United States
• Language: English

Related Subjects

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ABSORPTION
ABSORPTION SPECTROSCOPY
AQUEOUS SOLUTIONS
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
COPPER
CORROSION
GROUND WATER
MODIFICATIONS
SODIUM
FILMS
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