| 摘要 |
<p>A particulate burning catalyst capable of easily burning the particulates collected on a particulate filter of a diesel vehicle at a temperature extremely lower than before, characterized by comprising an NO oxidation catalyst formed of the catalyst components carried on the first acid carrier and an NO2 decomposition catalyst formed of the catalyst components carried on a second carrier, wherein, desirably, the NO oxidation catalyst should be formed of a precious metal such as platinum carried on the first acid carrier such as tungstic acid/ zirconia, and the NO2 decomposition catalyst should be formed of the catalyst compositions selected from the group of transition metals carried on the second carrier such as titania, or the NO2 decomposition catalyst should be formed of an alkali metal, at least one type of metal selected from alkaline earth metals, and a precious metal such as platinum carried on the second carrier such as titania.</p> |
