Patent ID: 7094730
Filing Date: 2006-08-22
Classification: B01D,B01J

Abstract:
1. A gas treatment device, comprising: a housing; a substrate disposed within the housing, the substrate comprising a coating comprising a catalyst selected from the group consisting of platinum, palladium, rhodium, ruthenium, iridium, gold, silver, and combinations comprising at least one of these catalysts, a hexaaluminate comprising a crystal stabilizer disposed in a hexaaluminate crystalline structure, said crystal stabilizer being selected from the group consisting of barium, lanthanum, strontium, ruthenium, and combinations comprising at least one of the foregoing crystal stabilizers; and a catalyst stabilizer selected from the group consisting of calcium-zirconium oxide, cesium-zirconium oxide, barium-zirconium oxide, and combinations comprising at least one of the foregoing catalyst stabilizers.