Photocathodic protection effect of TiO2 films for carbon steel in 3% NaCl solutions

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	Photocathodic protection effect of TiO2 films for carbon steel in 3% NaCl solutions
	M. C. Li; S. Z. Luo; P. F. Wu; J. N. Shena
	2005
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	50 期号:16-17 页码:3401-3406
摘要	Titanium dioxide (TiO2) films were prepared by anodization of titanium foils at different voltages in dilute NaOH solutions and characterized by XRD and scanning electron microscopy (SEM) techniques. The thin TiO2 films are mainly composed of anatase phase in the form of nano-crystallites. The photoelectrochemical behavior and photocathodic protection effect, for these films were also investigated in 3% NaCl solutions by using electrochemical measurement techniques and coupling test. The tremendous decrease of film resistance and open circuit potential of each TiO2 film takes place under ultraviolet (UV) illumination. TiO2 film formed at 120 V can serve as photoanode and supply a protective photocurrent about 8 8 μ A/cm(2) to carbon steel, when it is connected to carbon steel in test solution with an area ratio of 2:1. But TiO2 films can accelerate the corrosion of carbon steel in the dark. In addition, electrochemical impedance spectroscopy (EIS) characteristics and coupling behaviors for TiO2 films were discussed in detail. © 2005 Elsevier Ltd. All rights reserved.
部门归属	shanghai univ, inst mat, shanghai 200072, peoples r china. chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;li, mc (reprint author), shanghai univ, inst mat, pob 269,149 yanchang rd, shanghai 200072, peoples r china;mouchengli@yahoo.com.cn
关键词	Titanium Dioxide Photocathodic Protection Effect Eis Corrosion Anodization Electrochemical Impedance Spectroscopy Anodic Oxide-films Corrosion Protection Titanium-dioxide Electrodes Growth Breakdown Coatings System Acid
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34902
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. C. Li,S. Z. Luo,P. F. Wu,et al. Photocathodic protection effect of TiO2 films for carbon steel in 3% NaCl solutions[J]. Electrochimica Acta,2005,50(16-17):3401-3406.
APA	M. C. Li,S. Z. Luo,P. F. Wu,&J. N. Shena.(2005).Photocathodic protection effect of TiO2 films for carbon steel in 3% NaCl solutions.Electrochimica Acta,50(16-17),3401-3406.
MLA	M. C. Li,et al."Photocathodic protection effect of TiO2 films for carbon steel in 3% NaCl solutions".Electrochimica Acta 50.16-17(2005):3401-3406.