| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst for purifying an exhaust gas which is more excellent in performance and is obtained by using an aluminum phosphate fired body, and a method for producing the same.SOLUTION: There is provided a catalyst for purifying an exhaust gas obtained by carrying at least one platinum group metal selected from the group consisting of Pt, Rh and Pd having an average particle diameter of 0.50 nm or more and 2.0 nm or less on a tridymite type aluminum phosphate fired body. There is provided a method for producing a catalyst for purifying an exhaust gas, the method comprising the steps of: firing aluminum phosphate obtained from an aqueous solution adjusted to a pH of 3.5 to 4.5 at a temperature of 1000°C to 1200°C for two hours or more; and carrying at least one platinum group metal selected from the group consisting of Pt, Rh and Pd on the aluminum phosphate fired body. |
