| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst material such that the specific surface area of catalyst support carbon particles in the whole of the catalyst material is wide and many three-phase interfaces are formed.SOLUTION: The catalyst material comprises catalyst support carbon particles wherein a catalyst metal is supported on carbon particles. The carbon particles of the catalyst material are porous hollow carbon particles equipped with outer shell parts formed on carbon and having the catalyst metal supported thereon, the internal spaces formed in the outer shell parts and the large number of pores formed in the outer shell parts and communicating with the internal spaces. Further, this catalyst material is constituted of the catalyst support carbon particles with an average particle size of 200 nm-below 10 μm. |
