Browse Publications Technical Papers 2015-24-2514
2015-09-06

Ceria-zirconia Nanocatalysts for Diesel Soot Combustion 2015-24-2514

A set of ceria-zirconia nanocatalysts with different Zr-contents and structural properties was prepared to study the effect of both the Zr-amount and surface-dependent activity towards soot combustion in “loose” and “tight” soot-catalyst contact. The properties of the catalysts were examined using several physico-chemical techniques. The best soot oxidation activities were achieved for the Ce0.9Zr0.1O2-NP catalyst (NP means nano-polyhedra and 0.9 indicates the atomic ratio of Ce/Ce+Zr), due to its easier reducibility, compared to high-surface area catalysts with the same Ce/Zr ratio. Moreover, better performances were reached for Ce0.9Zr0.1O2-NP, than similar nano-polyhedra with higher Zr-amounts (denoted as CexZr1-xO2-NP, where x = 0.8 or 0.7). On the other hand, worse activities were obtained for both mesoporous and microporous catalysts with the same Ce/Zr ratio.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
JOURNAL ARTICLE

An Investigation into the NO2-Decoupling of Catalyst to Soot Contact and Its Implications for Catalysed DPF Performance

2008-01-0481

View Details

TECHNICAL PAPER

The Effects of Flow-through Type Oxidation Catalysts on the Particulate Reduction of 1990's Diesel Engines

900600

View Details

TECHNICAL PAPER

Diesel Oxidation Catalyst Application Strategies with Special Emphasis on Odour Reduction

942066

View Details

X