Volume 114, 1999

The growth of vanadium oxide on alumina and titania single crystal surfaces

Abstract

Evaporation of vanadium metal onto alumina or titania surfaces at room temperature in an oxygen ambient results in the growth of V2O3 overlayers. The results of several complementary methods, including STM, indicate that the oxide grows in clusters 20–30 Åin diameter, eventually covering the surface with a granular thin film at a coverage in excess of one monolayer of vanadium atoms. The similarity of the distribution of vanadium metal and the vanadium oxide on the surfaces observed by STM on a thin, crystalline alumina film suggests that the oxide is formed after the metal nucleates into small clusters. No surface reduction of cations occurs on either the TiO2(110) or Al2O3(0001) surface when the vanadium oxide is formed. On the alumina, the vanadium oxide film appears to be conducting at room temperature, as would be expected for V2O3 formation.

Article information

Article type
Paper

Faraday Discuss., 1999,114, 67-84

The growth of vanadium oxide on alumina and titania single crystal surfaces

R. J. Madix, J. Biener, M. Bäumer and A. Dinger, Faraday Discuss., 1999, 114, 67 DOI: 10.1039/A902737H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements