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J Chin Soc Corr Pro  2010, Vol. 30 Issue (6): 481-486    DOI:
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CORROSION RESISTANCE BEHAVIOR OF CERIUM-DOPED TiO2 FILM IN THE PRESENCE OF MARINE BACTERIUM SULFATE-REDUCING BACTERIA
WANG Hongfen1, WANG Zhiqi2, HONG Haixia1, CHEN Shougang1,YIN Yansheng1
1. Institute of Materials Science and Engineering, Ocean University of China, Qingdao 266100
2. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101
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Abstract  Cerium-doped TiO2 film was prepared on 304 stainless steel by a sol-gel process. Sulfate-reducing bacteria(SRB) was incubated by semi-continuous culture method. The effect of SRB on corrosion behavior of cerium-doped TiO2/304ss and bare 304ss immersed in SRB medium were studied by morphology analysis and electrochemical methods. The results showed that cerium-doped TiO2 film on 304ss could inhibit attachment of SRB. The corrosion current density of cerium-doped TiO2/304ss was lower, while electrochemical impedance was higher than that of bare 304ss. Therefore, a conclusion could be drawn that cerium-doped TiO2 film coating on 304ss could inhibit attachment of SRB and prevent corrosion caused by SRB in seawater.
Key words:  TiO2 thin film      sulfate-reducing bacteria      polarization      electrochemical impedance spectroscopy      304 stainless steel     
Received:  12 October 2009     
ZTFLH: 

TG172

 
Corresponding Authors:  WANG Hongfen     E-mail:  yys2003@ouc.edu.cn

Cite this article: 

WANG Hongfen, WANG Zhiqi, HONG Haixia, CHEN Shougang,YIN Yansheng. CORROSION RESISTANCE BEHAVIOR OF CERIUM-DOPED TiO2 FILM IN THE PRESENCE OF MARINE BACTERIUM SULFATE-REDUCING BACTERIA. J Chin Soc Corr Pro, 2010, 30(6): 481-486.

URL: 

https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y2010/V30/I6/481

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