| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for carrying an exhaust gas purifying catalyst capable of being produced without use of an expensive equipment, having a uniform treating surface and not restricted by the shape and size of a substrate and a catalytic structure for purifying the exhaust gas excellent in the adhesion of the metallic strate to the catalyst. SOLUTION: This catalytic structure consists of a metallic substrate and a silica coating film provided on at least a part of the substrate and composed of the silica grains having <=7μm average diameter, and the alkali metal content of the film is controlled to <=0.5wt.%. In this case, the catalyst for purifying an exhaust gas is deposited on the coating film of the structure to constitute the catalytic structure. |
