N2O DECOMPOSITION CATALYST AND METHOD FOR DECOMPOSING N2O-CONTAINING GAS USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a N₂O decomposition catalyst capable of exhibiting N₂O decomposition performance at a sufficiently high level under low temperature region such as 200°C or less, and a method for decomposing a N₂O-containing gas using the catalyst.;SOLUTION: There are provided a N₂O decomposition catalyst including: at least one active metals selected from the groups consisting of Pt, Au and Ag; and a carrier containing Ce such as oxide, hydroxide, acetate, carbonate and nitrate of cerium as well as a method for decomposing a N₂O-containing gas using the catalyst. The method for decomposing a N₂O-containing gas comprises supplying the N₂O-containing gas with a hydrogen-containing gas intermittently to decompose N₂O, at the time before the N₂O-containing gas is brought into contact with the N₂O decomposition catalyst and/or at the time when the N₂O-containing gas is brought into contact with the N₂O decomposition catalyst.;COPYRIGHT: (C)2015,JPO&INPIT