| abstract |
(57) [Abstract] [Purpose] To provide a catalyst having excellent strength and dimensional accuracy, and having excellent nitrogen oxide decomposition and removal activity. A catalyst for decomposing and removing nitrogen oxide, which comprises cobalt oxide and a molding aid, a method for producing the same, a production intermediate thereof, and a method for decomposing and removing nitrogen oxide. [Effect] The catalyst of the present invention has excellent strength and dimensional accuracy, and has excellent nitrogen oxide decomposition and removal activity. Therefore, it can be used for decomposing and removing nitrogen oxides in gases discharged from automobiles, ships, aircraft, cogeneration plants, boilers, and the like. |