| abstract |
The effect of improving the activity of the noble metal particles by the transition metal is maintained without increasing the manufacturing cost and environmental burden. The exhaust gas purifying catalyst 1 contains the noble metal particles 2, the first compound 3 that contacts the noble metal particles 2 and suppresses the movement of the noble metal particles 2, and the noble metal particles 2 and the first compound 3. And the second compound 4 that suppresses aggregation of the first compound 3 accompanying the contact between the first compounds 3, the first compound 3 carries the noble metal particles 2, and The three simple substances or aggregates of the first compounds carrying the noble metal particles 2 are included in the compartments separated by the second compounds 4. |