The Promotion of Particulate Matter Oxidation by Oxide Ion Conductors, Zr–Y–O and Zr–Nd–O

Catalytic particulate matter oxidation and its promotion by high oxide ion conductors, Zr–Y–O and Zr–Nd–O, has been studied. Zr-Based oxides show higher particulate matter oxidation activity by O2 compared to a Ce-based conventional catalyst using Pt-loaded oxide coated on a DPF substrate. Isotopic...

Full description

Saved in:
Bibliographic Details
Published in:Bulletin of the Chemical Society of Japan 2011-01, Vol.84 (12), p.1374-1382
Main Authors: Harada, Koichiro, Yamada, Hiroshi, Takami, Akihide
Format: Article
Language:English
Subjects:
Carbon
Catalysts
Conductors
Electric potential
Neodymium
Oxidation
Oxides
Promotion
Zirconium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Catalytic particulate matter oxidation and its promotion by high oxide ion conductors, Zr–Y–O and Zr–Nd–O, has been studied. Zr-Based oxides show higher particulate matter oxidation activity by O2 compared to a Ce-based conventional catalyst using Pt-loaded oxide coated on a DPF substrate. Isotopic tracer methods involving 18O indicate Zr-based oxides release a large amount of lattice oxygen during carbon oxidation. Also, unique to the Zr-based oxides is an electron and electromotive force generation between carbon-deposited sites and carbon-free sites during carbon oxidation. Zr-Based oxides appear to have the capability to effectively generate oxide ions well suited for carbon oxidation.
ISSN:0009-2673
1348-0634
1348-0634
DOI:10.1246/bcsj.20110250