Journalartikel

Jahr der Veröffentlichung: 2007

Seiten: 5363-5373

Zeitschrift: Journal of Physical Chemistry C

Bandnummer: 111

Heftnummer: 14

ISSN: 1932-7447

DOI Link: https://doi.org/10.1021/jp0667339

Verlag: American Chemical Society

Abstract: 

Using a variety of dedicated surface sensitive techniques, we studied
the interaction of hydrogen with bare and adsorbate modified RuO₂(110)
surfaces on the atomic scale. Hydrogen interacts strongly with the
undercoordinated O atoms, thereby forming hydroxyl groups and
passivating available oxygen species on the oxide surface, for instance,
for the catalytic CO oxidation reaction. Temperature programmed
reaction and desorption elucidate the complex reaction behavior of
hydrogen with O precovered RuO₂(110), including the hydrogen
transfer reaction between the different kinds of undercoordinated
surface oxygen atoms. Hydroxyl, water species, and hydrogen transfer are
identified with high-resolution O1s core level spectroscopy by
comparison with density functional theory (DFT) calculated O1s core
level shifts. DFT calculations provide adsorption energies, atomic
geometries, as well as diffusion barriers of H atoms on the RuO₂(110) surface.

Harvard-Zitierstil: Knapp, M., Crihan, D., Seitsonen, A., Lundgren, E., Resta, A., Andersen, J., et al. (2007) Complex Interaction of Hydrogen with the RuO2(110) Surface, Journal of Physical Chemistry C, 111(14), pp. 5363-5373. https://doi.org/10.1021/jp0667339

APA-Zitierstil: Knapp, M., Crihan, D., Seitsonen, A., Lundgren, E., Resta, A., Andersen, J., & Over, H. (2007). Complex Interaction of Hydrogen with the RuO2(110) Surface. Journal of Physical Chemistry C. 111(14), 5363-5373. https://doi.org/10.1021/jp0667339