| 摘要 |
This invention is a HfO2-containing catalyst support material for use in high temperature catalytic processes, such as catalytic combustion, wherein the HfO2 is present in a sufficient amount to impart thermal stability on the catalyst support at temperatures in excess of 1,000 DEG C, as well as, heterogeneous, supported-platinum group metal catalyst employing the HfO2-containing support material and monolithic catalyst structures in which the HfO2-containing support material is used as a substrate washcoat for the active catalyst material. Also described are high temperature catalytic processes, such as catalytic combustion, employing catalysts and catalyst structures which utilize the HfO2-containing support material. |
