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Improvement of the Oxygen-Storage Capacity of an Intelligent Catalyst
Technical Paper
2008-01-1644
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Ba(Ce,Zr,Pt)O3-perovskite is a new intelligent catalyst that shows self-regeneration of the precious metal. We previously reported that a Pd-perovskite catalyst, La(Fe,Pd)O3, regenerates itself through solid solution and segregation of Pd into and out of the perovskite crystal. We investigated the improvement of the oxygen-storage capacity (OSC) of an intelligent catalyst by means of suppressing the grain growth of the precious metal. The new intelligent catalyst is a composite comprising Ba(Ce,Zr,Pt)O3 perovskite formed on a CeZr oxide. We examined the self-regenerative function of the new material and tested its OSC and catalytic activity after engine aging at high temperature. The new intelligent catalyst was shown to have excellent durability of OSC and excellent catalytic activity.
Authors
- Yuji Matsuhisa - Daihatsu Motor Co., Ltd
- Masashi Taniguchi - Daihatsu Motor Co., Ltd
- Mari Uenishi - Daihatsu Motor Co., Ltd
- Isao Tan - Daihatsu Motor Co., Ltd
- Hirohisa Tanaka - Daihatsu Motor Co., Ltd
- Satoshi Matsueda - Daihatsu Motor Co., Ltd
- Keiichi Narita - Daihatsu Motor Co., Ltd
- Akimasa Hirai - Daihatsu Motor Co., Ltd
- Mareo Kimura - Daihatsu Motor Co., Ltd
Citation
Matsuhisa, Y., Taniguchi, M., Uenishi, M., Tan, I. et al., "Improvement of the Oxygen-Storage Capacity of an Intelligent Catalyst," SAE Technical Paper 2008-01-1644, 2008, https://doi.org/10.4271/2008-01-1644.Also In
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