Pd/Ce0.6Zr0.4O2/Al2O3 as advanced materials for three-way catalysts - Part1. Catalyst characterisation, thermal stability and catalytic activity in the reduction of NO by CO

Authors
Di Monte, R Fornasiero, P Kaspar, J Rumori, P Gubitosa, G Graziani, M
Citation
R. Di Monte et al., Pd/Ce0.6Zr0.4O2/Al2O3 as advanced materials for three-way catalysts - Part1. Catalyst characterisation, thermal stability and catalytic activity in the reduction of NO by CO, APP CATAL B, 24(3-4), 2000, pp. 157-167
Citations number
38
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Journal title
APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN journal
09263373 → ACNP
Volume
24
Issue
3-4
Year of publication
2000
Pages
157 - 167
Database
ISI
SICI code
0926-3373(20000207)24:3-4<157:PAAMFT>2.0.ZU;2-G
Abstract
Pd-loaded Ce0.6Zr0.4O2 solid solutions supported on Al2O3 are investigated as catalysts for the reduction of NO by CO. The attention is focused on the role of the Ce0.6Zr0.4O2 and of the Pd dispersion on the catalytic activit y. The system shows a very high activity below 500 K, which is almost indep endent on the Pd dispersion. The high activity is attributed to a promoting effect of the Ce0.6Zr0.4O2 On the NO conversion. Investigation of the infl uence of high temperature treatments disclosed a thermal stabilisation of b oth Ce0.6Zr0.4O2 and Al2O3 in the Ce0.6Zr0.4O2/Al2O3 system. (C) 2000 Elsev ier Science B.V. All rights reserved.