CHARACTERIZATION OF THE PT-C BOND OF CO ADSORBED BY SMALL PT PARTICLES IN A NAX ZEOLITE BY IR DIFFUSE-REFLECTANCE SPECTROSCOPY

Authors
KAZANSKY VB BOROVKOV VY SOKOLOVA N JAEGER NI SCHULZEKLOFF G
Citation
Vb. Kazansky et al., CHARACTERIZATION OF THE PT-C BOND OF CO ADSORBED BY SMALL PT PARTICLES IN A NAX ZEOLITE BY IR DIFFUSE-REFLECTANCE SPECTROSCOPY, Catalysis letters, 23(3-4), 1994, pp. 263-269
Citations number
13
Categorie Soggetti
Chemistry Physical
Journal title
Catalysis letters → ACNP
ISSN journal
1011372X
Volume
23
Issue
3-4
Year of publication
1994
Pages
263 - 269
Database
ISI
SICI code
1011-372X(1994)23:3-4<263:COTPBO>2.0.ZU;2-J
Abstract
The unusual properties of small (1-2 nm) Pt particles within a zeolite support are documented by diffuse reflectance infrared spectroscopy o f the metal-carbon bond of linearly adsorbed CO. The wave number of th e metal-carbon stretching frequency is found to be about 60 cm-1 highe r compared to larger particles (2-3 nm) or to the bulk metal. The stro nger bond is attributed to a negative charge on the small metal partic les.