abstract |
The metal oxide porous particle of the present invention has a 50% volume average particle diameter of 50 nm to 300 nm, a ratio of 90% volume average particle diameter to 50% volume average particle diameter (D90 / D50) of 2.0 or less, and has a BJH method. The measured pore diameters are mesopores of 5nm to 30nm, and the pore structure is a 3-dimensional cubic phase structure. |