Configuration of adsorbed CO affected by the terrace width of Pt(S)-[n(1 11) x (111)] electrodes

Authors
Hoshi, N Tanizaki, M Koga, O Hori, Y
Citation
N. Hoshi et al., Configuration of adsorbed CO affected by the terrace width of Pt(S)-[n(1 11) x (111)] electrodes, CHEM P LETT, 336(1-2), 2001, pp. 13-18
Citations number
30
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
336
Issue
1-2
Year of publication
2001
Pages
13 - 18
Database
ISI
SICI code
0009-2614(20010309)336:1-2<13:COACAB>2.0.ZU;2-G
Abstract
CO adsorbed on Pt(S)-[n(1 1 1) x (1 1 1)] electrodes was studied using infr ared reflection absorption spectroscopy (IRAS) in 0.1 M HClO4 saturated wit h CO. The configuration of adsorbed CO depends on the terrace width remarka bly: on-top and threefold CO are co-adsorbed on the surfaces with terrace a tomic rows (n) more than nine, whereas only on-top CO appears on the surfac es with n less than eight, on which no multi-bonded CO was observed. Integr ated intensity of the IRAS band and peak shift (dv/dE) do not depend on the crystal orientation. (C) 2001 Elsevier Science B.V. All rights reserved.