CORROSION OF CARBON-STEELS IN CO2-SATURATED BRINE A SURFACE-ENHANCED RAMAN-SPECTROSCOPIC

Authors
OBLONSKY LJ DEVINE TM
Citation
Lj. Oblonsky et Tm. Devine, CORROSION OF CARBON-STEELS IN CO2-SATURATED BRINE A SURFACE-ENHANCED RAMAN-SPECTROSCOPIC, Journal of the Electrochemical Society, 144(4), 1997, pp. 1252-1260
Citations number
48
Categorie Soggetti
Electrochemistry
Journal title
Journal of the Electrochemical Society → ACNP
ISSN journal
00134651
Volume
144
Issue
4
Year of publication
1997
Pages
1252 - 1260
Database
ISI
SICI code
0013-4651(1997)144:4<1252:COCICB>2.0.ZU;2-7
Abstract
Surface enhanced Raman spectroscopy was used to study species present on carbon steel in CO2 and N-2 saturated brines at 24 and 65 degrees C . in the presence of CO2, a surface carbonate species, characterized b g a peak at 1078 cm(-1), was observed on the cathodically polarized st eel surface. In CO2-saturated solutions, iron oxide/hydroxide corrosio n products formed at the cathodic potentials studied (-900 and -1100 m Ti SCE), while such products were not detected on steel at these poten tials in N-2-saturated brines.