THE CHEMISTRY OF REACTION-DIFFUSION FRONTS INVESTIGATED BY MICROSCOPIC LEED-I-V FINGERPRINTING

Authors
SCHMID AK SWIECH W RASTOMJEE CS RAUSENBERGER B ENGEL W ZEITLER E BRADSHAW AM
Citation
Ak. Schmid et al., THE CHEMISTRY OF REACTION-DIFFUSION FRONTS INVESTIGATED BY MICROSCOPIC LEED-I-V FINGERPRINTING, Surface science, 333, 1995, pp. 225-230
Citations number
19
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
333
Year of publication
1995
Part
A
Pages
225 - 230
Database
ISI
SICI code
0039-6028(1995)333:<225:TCORFI>2.0.ZU;2-9
Abstract
The coverage dependence of LEED I-V curves has been used to measure ad sorbate concentration profiles across reaction-diffusion fronts under dynamic conditions. For reaction-diffusion fronts occurring during the catalytic oxidation of CO on Pt(100) the results are in good agreemen t with those from other methods and provide a successful first test of the technique. Application to the oscillating system CO/NO on Pt(100) indicates that the CO concentration oscillates out of phase and with a larger amplitude than the NO concentration.