| abstract |
A core-shell catalyst having high catalytic activity is produced in a short time. A method of manufacturing a core-shell catalyst comprising a core containing palladium and a shell containing platinum and covering the core, wherein palladium-containing particles and a copper-containing material are supplied to an acid solution, and the acid The acid solution is stirred while introducing an oxygen-containing gas into the solution, and after the stirring, in the copper ion-containing electrolytic solution, by applying a potential more noble than the redox potential of copper to the palladium-containing particles, At least a part of the surface of the palladium-containing particles is coated with copper, and then the copper that covers at least a part of the surface of the palladium-containing particles is brought into contact with the palladium-containing particles by a platinum ion-containing solution. The shell is formed by replacing with platinum. [Selection] Figure 5 |