Oxygen Storage Capacity of three-way catalysts: a global test for catalyst deactivation.

被引:0
|
作者
Taha, R
Duprez, D
Mouaddib-Moral, N
Gauthier, C
机构
[1] CNRS, Catalyse Chim Organ Lab, F-86022 Poitiers, France
[2] Univ Poitiers, F-86022 Poitiers, France
[3] Renault Automobiles, Ctr Tech Lardy, F-91510 Lardy, France
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中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Two commercial catalysts (PtRh and PdRh) were treated in N-2+H2O (or Air+H2O) at 900, 1000 or 1100 degrees C (Lab. ageing) or aged on an engine bench for 25, 50 or 200h. OSC (transient CO oxidation) and catalytic activity for CO, HC and NO abatment (light-off temperatures and conversion at 450 degrees C) were measured over these aged catalysts. Correlations between OSC values and catalytic activity are discussed for a possible On-Board Diagnostic application.
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页码:549 / 558
页数:10
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