Abstract
ZnTa2O6, ZnNb2O6, MgTa2O6 and MgNb2O6 pseudo-binary oxide nanomaterials were synthesized through the hydrothermal method at 250 °C. Obtained materials were characterized by X-ray diffraction, UV-VIS measurements, field emission-scanning electron microscopy and atomic force microscopy techniques. XRD results show that the single phases of ZnTa2O6, ZnNb2O6, MgTa2O6 and MgNb2O6 pseudo-binary oxides nanomaterials were obtained, no thermal treatment being required. The values for the optical band gap of each material are settled in the range 3.60–3.80 eV. The anticorrosion characteristics of the obtained compounds were also evaluated after deposition on carbon steel in 0.5 M Na2SO4 media by open circuit potential measurements and potentiodynamic polarization technique with Tafel representation. The inhibition efficiency of pseudo-binary oxides deposited on carbon steel electrode was in the range 37–59.17%, promising for improvement of the anticorrosion properties.
Highlights
Corrosion is one of the most studied processes because this affects everything around us
The present study presents the obtaining of ZnTa2O6, ZnNb2O6, MgTa2O6 and MgNb2O6 pseudo-binary oxides nanomaterials by using the hydrothermal method at 250 °C
ZnTa2O6, ZnNb2O6, MgTa2O6 and MgNb2O6 pseudobinary oxide nanomaterials were obtained through the hydrothermal synthesis method at 250 °C for 12 h
Summary
Corrosion is one of the most studied processes because this affects everything around us. Corrosion inhibition represents a goal due to the damages that corrosion leads to the carbon steel equipment’s and installations in a lot of industries, whose remedy implies financial and time losses. To fight against this process, there were developed methods and techniques as: plating’s of the steel’s parts or the usage of different organic or inorganic corrosion inhibitors À which are often used to protect materials in different environments [1,2,3,4,5,6]. The developing and obtaining of corrosion inhibitors as: ZnTa2O6, ZnNb2O6, MgTa2O6 and MgNb2O6 pseudo-binary oxide nanomaterials are presented. It is known that until present, to obtain ZnTa2O6, ZnNb2O6, MgTa2O6 and MgNb2O6 pseudobinary oxides nanomaterials, there were used synthesis
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