Potassium oxide-incorporated alumina catalysts with enhanced storage capacities of nitrogen oxide and a producing method therefor

Abstract

Disclosed herein is a method of producing a catalyst for storing nitrogen oxides, including: supporting a potassium oxide on alumina, which serves as a support, and then calcining the alumina supported with the potassium oxide at a high temperature, thus chemically bonding potassium oxide with the alumina. The method is advantageous in that a catalyst for storing nitrogen oxides, having high nitrogen oxide storage capacity and excellent hydrothermal stability, can be produced at low cost through a simple process.

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