PURPOSE: To produce power of reducing NO2 with extremely high activity by forming a coating contg. one or more among Fe, Ni, Co, B, P, Zr, Si and C or an alloy thereof and an organosilicon polymer on a metal and by bringing the resulting coated metallic body into contact with a flow of gas contg. NO2.
CONSTITUTION: One or more among Fe, Ni, Co, B, P, Zr, Si and C or an alloy thereof is dispersed in a dye contg. an organosilicon polymer such as polyborosiloxane as the principal component, and the dispersion is coated on a metal and calcined to form a catalyst body. The organosilicon polymer loses slowly its org. property and is converted into ceramics when calcined. The skeleton of org. matter disappears, parts corresponding to the org. matter become voids, and a porous site for a reaction is formed. The catalyst body is brought into contact with a flow of gas contg. NO2.
KANEKO YASUNORI
FUKUDA YUU
