DIESEL PARTICULATE FILTER USING METAL STRUCTURE HAVING UNEVENNESS ON THE SURFACE

摘要

PURPOSE: A smoke filtering device using a metal support including a surface concavo-convex structure is provided to include porous carrier layer of a ceramic material in which catalyst particles are spread on the surface and to have thermal, chemical, and mechanical stability. CONSTITUTION: A smoke filtering device using a metal support including a surface concavo-convex structure includes a carrier layer. The metal support includes a concavo-convex structure on the surface. The porous carrier layer is formed on the metal support. The porous carrier layer includes one and more kinds of ceramic materials selected from a group composed of alumina (Al_2O_3), silica (SiO_2), titania (TiO_2), zeolite, ceria (Ce_2O_3), magnesia, vanadate (V_2O_5), cobalt oxide (CoOx), ferric oxide (FeOx), tungsten oxide (WO_3), molybdenum oxide (MoO_3), antimony oxide (SbO_2), and a rare-earth oxide (element oxides of Sc, Y, and La groups).