Study of CO adsorption on Rh/alumina model catalysts in dependence on substrate orientation

Authors
Nehasil, V Hrncir, T Zafeiratos, S Ladas, S Matolin, V
Citation
V. Nehasil et al., Study of CO adsorption on Rh/alumina model catalysts in dependence on substrate orientation, SURF SCI, 454, 2000, pp. 289-294
Citations number
12
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
454
Year of publication
2000
Pages
289 - 294
Database
ISI
SICI code
0039-6028(20000520)454:<289:SOCAOR>2.0.ZU;2-4
Abstract
The interaction of a CO molecular beam with rhodium vapour-deposited onto ( 0001), (1-102) and (11-20) alpha-alumina was investigated. The dependence o f the CO sticking coefficient on the sample temperature and the relative CO coverage for different Rh deposits were calculated from the intensity of t he reflected CO molecular beam. The diffusion of CO over the uncovered subs trate to the metal is discussed in relation to the Rh particle size and den sity. (C) 2000 Elsevier Science B.V. All rights reserved.