TITANIA-BASED POROUS BODY AND CATALYST

摘要

PROBLEM TO BE SOLVED: To improve selectivity and separation performance and further, inhibit agglomeration of a catalyst metal. SOLUTION: Each of the titania-based porous bodies consists essentially of titania and has X-ray diffraction peaks assigned to lattice-planes having 0.290±0.002 nm interplanar spacing and contains also crystals other than anatase phase crystals. Accordingly, in each of the porous bodies, there are many crystal faces and the ratio of the amount of a catalyst metal deposited on one and the same crystal face to the total amount of the catalyst metal deposited on the porous body is low.