State Of Pt/SiO2 catalysts after reaction with a lean NO-C3H6-O-2 mixture

Citation
P. Denton et al., State Of Pt/SiO2 catalysts after reaction with a lean NO-C3H6-O-2 mixture, TOP CATAL, 16(1-4), 2001, pp. 377-380
Citations number
17
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
TOPICS IN CATALYSIS
ISSN journal
10225528 → ACNP
Volume
16
Issue
1-4
Year of publication
2001
Pages
377 - 380
Database
ISI
SICI code
1022-5528(2001)16:1-4<377:SOPCAR>2.0.ZU;2-J
Abstract
During the selective reduction of NOx under lean-bum conditions with Pt/SiO 2 solids, a particle size dependency has previously been observed. Furtherm ore, under the reactant mixture up to 773 K, the Pt particles sinter at the same time as the solids are activated. In fact, the size dependency is lin ked to the strength of the Pt-O bond and to the ease of NO dissociation.