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Complex interaction of hydrogen with the RuO2(110) surface

Knapp, M.; Crihan, D.; Seitsonen, A. P.; Lundgren, Edvin LU ; Resta, Andrea LU ; Andersen, Jesper N LU and Over, H. (2007) In Journal of Physical Chemistry C 111(14). p.5363-5373
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
111
issue
14
pages
5363 - 5373
publisher
The American Chemical Society
external identifiers
  • wos:000245438900013
  • scopus:34247869893
ISSN
1932-7447
DOI
10.1021/jp0667339
language
English
LU publication?
yes
id
749a2545-3429-4bcd-9692-329499d8de58 (old id 667532)
date added to LUP
2007-12-12 08:32:08
date last changed
2017-10-01 03:45:39
@article{749a2545-3429-4bcd-9692-329499d8de58,
  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.},
  author       = {Knapp, M. and Crihan, D. and Seitsonen, A. P. and Lundgren, Edvin and Resta, Andrea and Andersen, Jesper N and Over, H.},
  issn         = {1932-7447},
  language     = {eng},
  number       = {14},
  pages        = {5363--5373},
  publisher    = {The American Chemical Society},
  series       = {Journal of Physical Chemistry C},
  title        = {Complex interaction of hydrogen with the RuO2(110) surface},
  url          = {http://dx.doi.org/10.1021/jp0667339},
  volume       = {111},
  year         = {2007},
}