Fe-Doped TiO2 Nanotube Array Films for Photocathodic Protection of Stainless Steel | Zendy

Yan-Feng Zhu | Zendy; Lu Xu | Zendy; Juan Zhang | Zendy; Hai-Qing Qi | Zendy; Rong-Gui Du | Zendy; Yi-Ze Shao | Zendy; Changjian Lin | Zendy

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Fe-Doped TiO₂ Nanotube Array Films for Photocathodic Protection of Stainless Steel

Author(s) -

Yan-Feng Zhu,

Lu Xu,

Juan Zhang,

Hai-Qing Qi,

Rong-Gui Du,

Yi-Ze Shao,

Changjian Lin

Publication year - 2013

Publication title -

ecs transactions

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.235

H-Index - 52

eISSN - 1938-6737

pISSN - 1938-5862

DOI - 10.1149/05333.0031ecst

Subject(s) - x ray photoelectron spectroscopy , dielectric spectroscopy , materials science , scanning electron microscope , doping , electrochemistry , electrode , chemical engineering , anode , analytical chemistry (journal) , nanotechnology , metallurgy , composite material , optoelectronics , chemistry , chromatography , engineering

A TiO 2 film and a Fe-doped TiO 2 film were prepared by an electrochemical anodic oxidation method. The effect of Fe on the surface morphology and crystalline structure of the doped film was investigated by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), respectively. Electrode potential and electrochemical impedance spectroscopy (EIS) measurements were performed to study the protection effect of the film on stainless steel. When 304 stainless steel in a 0.5 M NaCl solution was coupled to the Fe-doped TiO 2 film photoanode under illumination, its potential decreased by 450 mV, showing a good photocathodic protection effect. EIS measurements revealed that the charge transfer resistance of the steel coupled to the photoanode decreased considerably.

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