MIXED METAL OXIDE CATALYST FOR DECOMPOSITION OF NITROGEN OXIDES

摘要

The present invention relates to a mixed metal oxide catalyst for the decomposition of nitrogen oxides wherein a non-noble metal is impregnated or intercalated into a hydrotalcite type precursor containing an alkali metal, a preparation method thereof, and a decomposition method of nitrogen oxides using the mixed metal oxide catalyst. The mixed metal oxide catalyst of the present invention has excellent catalyst activity because of the capability of decomposing NOx, N2O or a mixture thereof even at a low temperature, and is economical because of using no noble metal.