Manganese-Containing Nanostructured Oxide Coatings on Titanium Formed by Plasma Electrolytic Oxidation

Abstract:

Nanostructured manganese-containing oxide coatings on titanium were formed by method of plasma electrolytic oxidation in tetraborate aqueous electrolyte containing manganese acetate with and without the acetonitrile addition. These oxide layers with high content of manganese and coated by ordered "leaf-like" mesh nanostructures are formed in the electrolyte without acetonitrile addition. The oxide layers are displayed high acitivity towards oxidation CO and photoactivity in the degradation reaction of methylene blue. The addition of acetonitrile into electrolyte results in the change in the morphology of the coating surface, a significant reduction in the manganese content and, as a consequence, practical loss of activity in the oxidation of CO in CO₂ and a reduction in the photocatalytic activity in the decomposition of methylene blue.

• Periodical: Defect and Diffusion Forum (Volume 386)
• Pages: 349-352
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.386.349
• Online since: September 2018
• Authors: Marina S. Vasilyeva*, Vladimir S. Rudnev
• Keywords: Acetonitrile, Catalyst, Manganese Oxide, Nanostructured Coating, Photocatalyst, Plasma Electrolytic Oxidation, Titanium

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