Gotterbarm K, Luckas N, Höfert O, Lorenz MPA, Streber R, Papp C, Vines F, Steinrück HP, Görling A (2012)
Publication Type: Journal article
Publication year: 2012
Original Authors: Gotterbarm K., Luckas N., Höfert O., Lorenz M.P.A., Streber R., Papp C., Vines F., Steinrück H.-P., Görling A.
Publisher: American Institute of Physics (AIP)
Book Volume: 136
Article Number: 094702
Journal Issue: 9
DOI: 10.1063/1.3687676
We studied the reaction kinetics of sulfur oxidation on the Pd(100) surface by in situ high resolution x-ray photoelectron spectroscopy and ab initio density functional calculations. Isothermal oxidation experiments were performed between 400 and 500 K for small amounts (∼0.02 ML) of preadsorbed sulfur, with oxygen in large excess. The main stable reaction intermediate found on the surface is SO , with SO and SO being only present in minor amounts. Density-functional calculations depict a reaction energy profile, which explains the sequential formation of SO , SO , and eventually SO , also highlighting that the in-plane formation of SO from S and O adatoms is the rate limiting step. From the experiments we determined the activation energy of the rate limiting step to be 85 6 kJ mol by Arrhenius analysis, matching the calculated endothermicity of the SO formation. © 2012 American Institute of Physics.
APA:
Gotterbarm, K., Luckas, N., Höfert, O., Lorenz, M.P.A., Streber, R., Papp, C.,... Görling, A. (2012). Kinetics of the sulfur oxidation on palladium: A combined in situ x-ray photoelectron spectroscopy and density-functional study. Journal of Chemical Physics, 136(9). https://dx.doi.org/10.1063/1.3687676
MLA:
Gotterbarm, Karin, et al. "Kinetics of the sulfur oxidation on palladium: A combined in situ x-ray photoelectron spectroscopy and density-functional study." Journal of Chemical Physics 136.9 (2012).
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