Composition, Structure, and Catalytic Activity of SiO2+TiO2/Ti and MnOx+SiO2+TiO2/Ti Composites Formed by Combination of the Methods of Plasma Electrolytic Oxidation, Impregnation and Annealing

Marina S. Vasilyeva; Vladimir S. Rudnev; Alexander Yu. Ustinov

doi:10.4028/www.scientific.net/SSP.245.238

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Composition, Structure, and Catalytic Activity of SiO₂+TiO₂/Ti and MnO_x+SiO₂+TiO₂/Ti Composites Formed by Combination of the Methods of Plasma Electrolytic Oxidation, Impregnation and Annealing
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HomeSolid State PhenomenaSolid State Phenomena Vol. 245Composition, Structure, and Catalytic Activity of...

Composition, Structure, and Catalytic Activity of SiO₂+TiO₂/Ti and MnO_x+SiO₂+TiO₂/Ti Composites Formed by Combination of the Methods of Plasma Electrolytic Oxidation, Impregnation and Annealing

Abstract:

New data on the structure of silicon-containing oxide layers SiO₂+TiO₂ on titanium formed by the method of plasma electrolytic oxidation (PEO) as well as on the structure and catalytic activity in CO oxidation of MnO_x+SiO₂+TiO₂/Ti composites formed on their basis using impregnation and annealing methods have been obtained. It has been demonstrated that silicon and titanium are rather homogeneously distributed over the SiO₂+TiO₂ coating bulk. The coating outer part is silicon-enriched titanium-depleted. The MnO_x+SiO₂+TiO₂/Ti composites catalyze the CO conversion at temperatures above 100°C. Nanowhiskers consisting predominantly of manganese oxides have been found on the surface of the MnO_x+SiO₂+TiO₂/Ti composites.

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Solid State Phenomena (Volume 245)

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238-242

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https://doi.org/10.4028/www.scientific.net/SSP.245.238

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Online since:

October 2015

Authors:

Marina S. Vasilyeva*, Vladimir S. Rudnev, Alexander Yu. Ustinov

Keywords:

CO Oxidation, Manganese Oxide, Plasma Electrolytic Oxidation, SiO₂+TiO₂ Coating, Surface Structure, Titanium

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