CPC B01J 23/464 (2013.01) [B01J 21/04 (2013.01); B01J 21/066 (2013.01); B01J 35/40 (2024.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01)] | 5 Claims |
1. A supported catalyst particle, comprising
an oxide carrier particle and noble metal particles supported on the oxide carrier particle,
wherein a noble metal constituting the noble metal particles is rhodium,
the noble metal particles have a mass of 5% by mass or less based on the mass of the oxide carrier particle,
the noble metal particles have an average particle size of 1.0 nm to 2.0 nm with a particle size standard deviation σ of 0.8 nm or less, as measured by observation with a transmission electron microscope, and
a presence ratio of noble metal particles having a particle size of less than 1.0 nm is 5% by mass or less with respect to the total mass of the noble metal particles.
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