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On the composition and structure of thin layers of titanium oxide on platinum surfaces

Catalysis Letters volume 5, pages 81–88 (1990)Cite this article

Abstract

This work reviews the available data about the structure and composition of thin layers of titanium oxide on the surface of platinum. These systems can be prepared by vapor deposition and subsequent oxidation of Ti on a massive Pt substrate or by oxidation at low pressure of the Pt3Ti alloy. For both types of substrate, the XPS data show that two distinct Ti states in the oxide layer can be detected. The structure and the composition of the oxide layer varies depending on the substrate composition and on the conditions of preparation. On pure Pt, the preferential formation of a defective “TiO2−x” oxide was observed. On Pt3Ti, the oxide film a layer was formed of TiO of thickness of the order of a single atomic layer and of crystallites of nearly stoichiometry TiO2.

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  1. Dipartimento di Chimica, Università di Firenze, Via G. Capponi 9, 50121, Firenze, Italy

    U. Bardi

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Bardi, U. On the composition and structure of thin layers of titanium oxide on platinum surfaces. Catal Lett 5, 81–88 (1990). https://doi.org/10.1007/BF00772097

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  • DOI: https://doi.org/10.1007/BF00772097

  • Titanium oxide
  • platinum surfaces