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Effect of the titanium oxide stoichiometry on the efficiency of CO oxidation on the Au/TiOx system surface

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Abstract

Infrared reflection absorption and X-ray photoelectron spectroscopies are used to show that the process of carbon monoxide (CO) oxidation can occur on the surface of a system formed during the appearance of gold clusters on the surface of a titanium oxide layer cooled below room temperature. The efficiency of this process is significantly affected by stoichiometry of the titanium oxide layer. The use of a TiOx substrate with the stoichiometry different from TiO2 results in more effective CO oxidation in comparison with the process observed in the Au/TiO2 system. An important role in the oxidation process is played by the gold-oxide interface.

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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 26, No. 20, 2000, pp. 1–7.

Original Russian Text Copyright © 2000 by Magkoev, Rosenthal, Schröder, Christmann.

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Magkoev, T.T., Rosenthal, D., Schröder, S.L.M. et al. Effect of the titanium oxide stoichiometry on the efficiency of CO oxidation on the Au/TiOx system surface. Tech. Phys. Lett. 26, 894–896 (2000). https://doi.org/10.1134/1.1321231

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  • DOI: https://doi.org/10.1134/1.1321231

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