- TITANIA-DOPED ZIRCONIA AS PLATINUM GROUP METAL SUPPORT IN CATALYSTS FOR TREATMENT OF COMBUSTION ENGINE EXHAUSTS STREAMS

摘要

The composite of mixed metal oxides for the exhaust gas purification catalyst comprises the following coprecipitated materials: zirconia in an amount ranging from 55 to 99% by weight of the composite; Titania in an amount ranging from 1 to 25%; Accelerators and / or stabilizers in amounts ranging from 0-20%. Such a composite is effective as a support for platinum group metals (PGM), especially rhodium.