Sangmyung University, Council for Industry Academic Cooperation

Xiaoshan Peng

Kil Sang Chang

Ki Seon Yang

A Reum Han

Seo Young Park

The present invention relates to a mixed metal oxide catalyst in which a hydrotalcite precursor containing an alkali metal is impregnated or intercalated with a nonprecious metal, a method of manufacturing the same, and a method of decomposing nitrogen oxide using the mixed metal oxide catalyst. The mixed metal oxide catalyst has excellent catalytic activity because it can decompose NO, NO or a mixture thereof even at low temperature, and is economical because it does not use a precious metal.

Mixed metal oxide catalyst for decomposition of nitrogen oxides

The present invention relates to a method of adsorbing and reducing nitrogen oxides using a mixed metal oxide catalyst, and more particularly, to a method of improving the efficiency of adsorption and desorption of nitrogen oxides using a mixed metal oxide catalyst prepared from a hydrotalcite precursor. According to the invention, NOx and NO, which coexist with oxygen (O) known to be very difficult to reduce and decompose, are efficiently decomposed by adsorbing and separating NOx and NO from oxygen and then decomposing the adsorbed NOx and NO using a reducing agent.

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Seoul, South Korea

Xiaoshan Peng