Journalartikel

Jahr der Veröffentlichung: 2006

Seiten: 14007-14010

Zeitschrift: Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry)

Bandnummer: 110

Heftnummer: 29

ISSN: 1520-5207

DOI Link: https://doi.org/10.1021/jp0626622

Verlag: American Chemical Society

Abstract: 
The reduction mechanism of the RuO(2)(110) surface by molecular hydrogen exposure is unraveled to an unprecedented level by a combination of temperature programmed reaction, scanning tunneling microscopy, high-resolution core level shift spectroscopy, and density functional theory calculations. We demonstrate that even at room temperature hydrogen exposure to the RuO(2)(110) surface leads to the formation of water. In a two-step process, hydrogen saturates first the bridging oxygen atoms to form (O(br)-H) species and subsequently part of these O(br)-H groups move to the undercoordinated Ru atoms where they form adsorbed water. This latter process is driven by thermodynamics leaving vacancies in the bridging O rows.

Harvard-Zitierstil: Knapp, M., Crihan, D., Seitsonen, A., Resta, A., Lundgren, E., Andersen, J., et al. (2006) Unusual process of water formation on RuO2(110) by hydrogen exposure at room temperature, Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 110(29), pp. 14007-14010. https://doi.org/10.1021/jp0626622

APA-Zitierstil: Knapp, M., Crihan, D., Seitsonen, A., Resta, A., Lundgren, E., Andersen, J., Schmid, M., Varga, P., & Over, H. (2006). Unusual process of water formation on RuO2(110) by hydrogen exposure at room temperature. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry). 110(29), 14007-14010. https://doi.org/10.1021/jp0626622