DURABILITY-IMPROVED CATALYST FOR REDUCTIVE ELIMINATION OF NITROGEN OXIDES

摘要

The present invention relates to a catalyst for the reductive elimination of nitrogen oxides using hydrogen and, more specifically, to a catalyst for the reductive elimination of nitrogen oxides, the catalyst having high nitrogen selectivity and improved durability and, more particularly, to a complex oxide catalyst for the reductive elimination of nitrogen oxides, wherein reducing metal oxides are fixed to one or both of the basic oxides consisting of SiO2 and Al2O3, and noble metals are supported thereon.