Abstract
Using the molecular layering method, titanium oxide coatings were synthesized on the surface of polycrystalline aluminum oxide plates by alternating treatment with titanium tetrachloride and water vapors. It was shown by means of diffuse reflection electron spectroscopy that at different nanocoating thickness, surface complexes differing in structure are formed: distorted octahedral (alumotitanate), those with tetrahedral titanium coordination, and polyhedra with anatase-like environment of the central atom. The surface morphology changes during the synthesis and after 600 layering cycles the titanium oxide coating covers the entire surface of the initial substrate.
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ACKNOWLEDGMENTS
The authors are grateful to A.S. Kochetkova for the AFM measurements at the Center for Collective Use “Chemical Assembly of Nanomaterials” of St. Petersburg State Institute of Technology.
Funding
The presented results were obtained with partial financial support from the Ministry of Education and Science (unique project identifier RFMEFI60719X0328).
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Zakharova, N.V., Akkuleva, K.T. & Malygin, A.A. Structural and Morphological Features of Polycrystalline Aluminum Oxide Surface after Nanocoating with Titanium Oxide of Different Thickness. Russ J Gen Chem 90, 1670–1676 (2020). https://doi.org/10.1134/S1070363220090133
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DOI: https://doi.org/10.1134/S1070363220090133