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Successive ionic layer adsorption and reaction (SILAR) deposition of nickel sulfide on the Fe2O3 nanotube for efficient photocathodic protection of stainless steel under visible light

Successive ionic layer adsorption and reaction (SILAR) deposition of nickel sulfide on the Fe2O3 nanotube for efficient photocathodic protection of stainless steel under visible light

Mohamad Mohsen Momeni, Yousef Ghayeb, Mehrdad Akbarnia, Zahra Barati

 

Abstract

Nickel sulfide deposited on the Fe2O3 nanotube surfaces (NiS/Fe2O3) via successive ionic layer adsorption and reaction (SILAR) method was applied as a novel photoanode in the photocathodic protection in order to retard the corrosion of 403 stainless steel. The morphology, crystal structure, and elemental composition were characterized by scanning electron microscopy, X-ray diffraction, and energy dispersive X-ray. Furthermore, measurements of the open-circuit potential, photocurrent density with time (j − t), and potentiodynamic polarization curves (Tafel plot) were used to assess the photocathodic protection effects of the films prepared. The morphology, visible light response, and the corresponding photoelectrochemical performances of NiS/Fe2O3 were affected by the number of SILAR cycles. Considerable photoelectrochemical properties such as enhanced photocurrent density and negative shift …

Journal of the Iranian Chemical Society

Journal Papers
Month/Season: 
August
Year: 
2020

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