Journalartikel

Jahr der Veröffentlichung: 2003

Seiten: 167-175

Zeitschrift: Catalysis Today

Bandnummer: 85

Heftnummer: 2-4

ISSN: 0920-5861

DOI Link: https://doi.org/10.1016/S0920-5861(03)00384-5

Verlag: Elsevier

Abstract: 

The primary reason why the RuO2(1 1 0) surface is much more active in the oxidation of CO than the corresponding metal Ru(0 0 0 1) surface is correlated with the weaker oxygen bonding on RuO2(1 1 0) compared to chemisorbed oxygen on Ru(0 0 0 1). The RuO2(1 1 0) surface stabilizes at least two potentially active oxygen species, i.e., bridging O and on-top O atoms. Together with various adsorption sites for CO during the reaction, the CO oxidation reaction over RuO2(1 1 0) becomes quite complex. Using the techniques of temperature programmed reaction and desorption in combination with state-of-the-art density functional theory calculation we studied the CO oxidation reaction over RuO2(1 1 0) in the temperature range of 300–400 K. We show that the CO oxidation on RuO2(1 1 0) surface is not dominated by the recombination of CO with on-top O, although the binding energy of the on-top O is 1.4 eV lower than that of the bridging O atom.

Harvard-Zitierstil: Wendt, S., Seitsonen, A. and Over, H. (2003) Catalytic activity of RuO2(110) in the oxidation of CO, Catalysis Today, 85(2-4), pp. 167-175. https://doi.org/10.1016/S0920-5861(03)00384-5

APA-Zitierstil: Wendt, S., Seitsonen, A., & Over, H. (2003). Catalytic activity of RuO2(110) in the oxidation of CO. Catalysis Today. 85(2-4), 167-175. https://doi.org/10.1016/S0920-5861(03)00384-5