For low temperature, ZrOx as a host matrix of redox-active cation for the SCR catalyst of hydrothermal resistance and poisoning resistance,, Ce-ZrOx, Ce-Zr-REOx

摘要

The present invention relates to the application of a catalyst for the selective catalytic reduction of nitrogen oxides with the N-containing reducing agent. Catalyst is characterized as a pure phase grating oxide material incorporated in a highly dispersed catalyst activity levels cationic be highly pure phase material in conventional analysis to be clarified. In addition, are characterized by high activity poisoning resistance in the intended use, and hydrothermal resistance and material. From the oxide solid solution of zirconium, cerium and more preferably - - cerium net phase lattice structure is preferably I discloses a method derived from yttrium solid solution - zirconium.