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Photo-electrochemical Characterization of Passive Film Formed on X80 Pipeline Steel |
西安交通大学 |
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Cite this article:
. Photo-electrochemical Characterization of Passive Film Formed on X80 Pipeline Steel. Acta Metall Sin, 2008, 44(6): 739-744 .
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Abstract The semi-conductive property and photo-electrochemical characterization of passive film formed on X80 pipeline steel in bicarbonate/carbonate buffer solution. The factors, which affect the photo-electrochemical response of the passive film, were analyzed. The results showed that the slope of Mott-Schottky plot and the photocurrent were positive, indicating an n-type semi-conductive property of the passive film. With increment the formation potential, prolonging the formation time, decreasing the pH value of the solution,formation temperature and chloride ions concentration, the photocurrent appeared an increasing tendency, it showed that donor density of the passive film decreased.
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Received: 15 October 2007
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